Pharmacological Aids in Sports
Linas JuozėnasShare
Performance aids
Understand supplements, pharmacological claims and the boundaries of fair sport.
Wanting to become stronger, recover well or perform with greater confidence is understandable. A useful aid may support that work. Deciding whether it belongs in a person's training requires a clear account of what it can do, what it asks of the person and which rules apply.
The landscape includes ordinary sports foods, well-studied supplements, prescribed medicines, concentrated plant extracts and experimental compounds. They differ substantially in purpose, evidence and oversight. A label such as “natural”, “legal” or “research-backed” cannot settle all those questions.
This guide explains how to assess performance claims, recognise important category differences and navigate sporting requirements without losing sight of health, informed choice and the enjoyment of movement.
A benefit in one task, population or preparation does not establish a universal advantage.
Health, other products, medicines, tolerance and practical demands all matter.
Sporting permission, lawful sale and medical approval answer different questions.
Performance aids are a broad family, not one category
Ergogenic means helping performance or the capacity to do work. An ergogenic aid might be nutritional, pharmacological, mechanical or psychological. The word describes an intended effect; it does not establish that the effect has been demonstrated.
A carbohydrate drink can provide convenient fuel. A nutrient supplement can help address a specific shortfall. A medicine treats a medical condition. A research compound may be under investigation for a possible future application. Calling all of them “supplements” hides differences that matter.
The IOC's consensus on dietary supplements describes several legitimate purposes, including meeting nutritional needs and supporting particular performance demands, while emphasising the need to assess benefits and risks.[1] The starting point is the purpose in this person's circumstances.
| Question | What would answer it? | What does not answer it? |
|---|---|---|
| Does it help? | Relevant human evidence for the intended outcome. | A plausible mechanism or enthusiastic testimonial. |
| Is it suitable? | Assessment of the person, product and circumstances. | A claim that everyone in the gym uses it. |
| Can it lawfully be sold for this use? | Applicable product and national rules. | Availability from an online seller. |
| Is it permitted in this sport? | The applicable anti-doping and competition rules. | A shop receipt or a seller's “legal” label. |
These questions can lead to different answers. A prescribed medicine may be appropriate treatment while requiring a sporting exemption. A permitted supplement may offer little benefit for a particular event.
What has improved, for whom and under which conditions?
A compelling biological explanation is the beginning of an investigation. Changing a hormone, blood marker or cellular pathway does not by itself demonstrate better training, faster competition times or improved health.
Look for studies that identify the participants, preparation, comparison, duration and outcome. A laboratory capacity test can be informative, but completing more work in that test may not translate directly into a better result in a complex sport.
Two examples show why endpoints matter
In a small crossover study of eight healthy men, vitamin C-enriched gelatin with exercise increased a circulating marker of collagen synthesis. The study also used engineered ligament tissue.[2] It did not establish fewer injuries or faster return to sport. Those outcomes require their own evidence.
A 17-man curcumin crossover trial reported less soreness after unfamiliar eccentric exercise.[3] Its short duration and small, male-only sample limit how confidently its findings can guide broad recommendations. Perceived soreness, tissue healing and long-term training adaptation remain different outcomes.
Examine what was actually compared
Was the comparison a placebo, usual practice or another credible approach? Did both groups receive similar training and attention? Were the outcomes chosen in advance? Did the researchers report uncertainty and unwanted effects?
Older studies can explain how a claim developed. A present-day product should also be assessed against the wider, current evidence. One favourable experiment does not validate every later blend that includes an ingredient with the same name.
A useful explanation should make the evidence easier to inspect. It should leave you able to say both what the finding supports and what it still cannot tell you.
Some familiar aids have specific, established uses
A small group of supplements has a much stronger sports-performance evidence base than the broad market of enhancement products. The Australian Institute of Sport places evidence-supported options within defined sporting situations and individual plans.[4]
The table describes applications, not a universal shopping list. An ingredient's evidence does not certify a finished product or determine whether you personally need it.
| Aid | Where evidence is useful | A relevant limit or trade-off |
|---|---|---|
| Carbohydrate and protein sports foods | Convenient ways to meet relevant fuelling and recovery needs.[1] | Ordinary food may meet the same need; convenience can still be valuable. |
| Creatine monohydrate | Repeated high-intensity efforts and supporting resistance-training adaptations.[5] | Body mass can increase, partly through additional water; the effect may matter differently across sports. |
| Caffeine | Improving performance in several endurance and high-intensity settings.[6] | Responses vary; sleep disruption and unwanted stimulation can outweigh a benefit. |
| Beta-alanine | Increasing muscle carnosine over time, with benefits in some demanding high-intensity tasks.[7] | It is not an instant pre-workout effect; tingling can occur. |
| Sodium bicarbonate | Supporting buffering during certain high-intensity efforts.[8] | Gastrointestinal effects can compromise performance and require careful individual planning. |
| Dietary nitrate | Improving some exercise outcomes, often studied using nitrate-rich beetroot preparations.[9] | Benefits vary with the task and athlete; nitrate amounts vary between products. |
There is no reason to assume that combining all these options produces the sum of their individual benefits. Each should have an identifiable role, and combinations require their own assessment.
For someone exercising for enjoyment and general fitness, the useful outcome may simply be a routine that is comfortable and easy to maintain. A specialist performance product can be optional even when its evidence is good.
A demonstrated benefit still needs to fit your life
The same aid can be useful in one situation and poorly suited to another. Training demands, health history, eating patterns, preferences and the rest of the day all help determine its value.
Caffeine: consider the full day
Caffeine can reduce perceived fatigue during exercise, but people differ in their response. Unwanted effects can include anxiety and disturbed sleep.[6] Count all sources together, including coffee, energy drinks and combination products. A stronger sensation does not establish a better training outcome.
For an evening exerciser, the relevant question includes how they sleep afterwards. A short-lived improvement deserves comparison with its effect on recovery, comfort and the following day.
Creatine: identify the relevant outcome
Creatine monohydrate has the main body of efficacy and safety research. More expensive alternative forms have not established general superiority. Increases in body water and occasional gastrointestinal discomfort are practical considerations.[5]
A strength athlete may assess training progress differently from someone in a weight-category event. Interpret changes in body mass in context rather than assuming that every increase is either new muscle or unwanted fat.
Agree on what would make it worthwhile
Choose an outcome that relates to the purpose. Include convenience, cost and effort alongside performance. If a clinician needs to assess a relevant medical condition or interaction, do that before treating the supplement as a routine addition.
A good plan can also end with deciding that no product is needed. That is a complete decision when the proposed benefit does not justify the commitment or does not address the actual problem.
Herbal extracts need the same evidence standards
Adaptogen is a term used for substances claimed to help the body respond to stress. It should not be treated as a guarantee of improved endurance, balanced hormones or reliable recovery.
Plant names alone do not identify equivalent products. The plant part, extraction process, concentration and accompanying ingredients can differ. A result from one preparation may not apply to another.
Ashwagandha
Some preparations have evidence relevant to stress or sleep, but NCCIH finds insufficient evidence to establish benefit for athletic performance. It also identifies uncertainties about long-term safety, reported liver injury, thyroid-related concerns and possible medicine interactions.[10]
Those distinctions matter when a general wellbeing claim becomes a promise of better strength or training adaptation. Ask for evidence of that specific outcome and preparation.
Rhodiola
NCCIH describes the human evidence for rhodiola as insufficient to establish its usefulness, with much research of low-to-moderate quality.[11] This leaves room for further research while limiting confident performance promises.
Turmeric and concentrated curcumin
Using turmeric in food and taking a concentrated extract are different exposures. The small curcumin study discussed in section 2 illustrates a research question about post-exercise soreness; it does not establish that every turmeric product improves recovery.
If a blend promises to “reset cortisol”, ask what was measured and whether the change produced a worthwhile outcome. Hormones vary for normal physiological reasons. A marketing target should not become a reason to pursue a lower or higher laboratory number without appropriate context.
Respect for traditional use and careful scientific evaluation can coexist. Clear evidence helps people understand which claims are supported, which remain uncertain and what a particular product actually offers.
“Glucose disposal” does not prove better muscle growth
Products marketed as “glucose disposal agents” or “nutrient partitioners” often promise to direct carbohydrate into muscle while reducing fat storage. The phrase describes a commercial claim, not a single, standardised category of treatment.
A change in glucose regulation in someone with a metabolic condition cannot automatically be translated into enhanced training adaptation in a healthy athlete. The proposed benefit needs direct evidence in the relevant population.
Berberine
France's ANSES has identified pharmacological effects and risks associated with berberine-containing supplements, including digestive problems, low blood glucose, low blood pressure and medicine interactions.[12] “Plant-derived” does not make those effects nutritionally trivial.
Athletic use should not be inferred from research on treating a health condition. If someone has a glucose-related medical concern, that concern deserves appropriate assessment rather than an attempt to manage it through a performance blend.
Chromium and related marketing
The NIH Office of Dietary Supplements describes chromium's observed effects on body weight and body fat as very small and of little clinical significance.[13] This evidence does not establish the dramatic transformation suggested by some nutrient-partitioning claims.
Apply the same questions to alpha-lipoic acid and multi-ingredient products: what exact outcome was demonstrated, with which preparation, and what evidence supports the combination being sold?
Separate a marketing term from a sporting classification
WADA prohibits insulins and insulin-mimetics within S4.[14] A commercial label such as “glucose disposal” does not determine sporting classification; individual ingredients need checking.
When the composition or status is unclear, the useful next step is to resolve that uncertainty before use.
Research compounds are not a collection of legal supplements
Online descriptions often group peptides, selective androgen receptor modulators and other experimental molecules together. They are not one chemical family. “Peptide” describes a molecular structure; it does not establish a substance's purpose, evidence or regulatory status.
Under the 2026 WADA List, SARMs are prohibited within S1, while growth hormone-releasing peptides are prohibited within S2.[14] Their availability from a seller does not create an exception to those classifications.
What early research can establish
5-amino-1MQ is a small-molecule inhibitor investigated in relation to the enzyme NNMT. A frequently cited study examined its effects in cells and mice with diet-induced obesity.[15] Those findings do not establish an effective or safe human fat-loss or sports-performance programme.
Early work may identify an interesting mechanism or justify further investigation. Human benefit still requires suitable trials, safety assessment and a clear account of the population and use being studied.
An unfamiliar name is not a loophole
WADA's S0 category prohibits pharmacological substances without current governmental approval for human therapeutic use when they are not addressed by another List section. Other categories also cover classes rather than only individually named examples.[14]
A search that returns no exact name therefore cannot establish permission. An unfamiliar label may reflect a synonym, a class-wide restriction or an incomplete search.
Keep the burden of proof with the claim
A seller describing something as “research only” has not supplied evidence for personal use. Ask for credible human evidence and authoritative classification. A catalogue entry or a laboratory purity statement cannot provide those answers.
Doping is defined by rules, not by whether an aid feels artificial
The Code and the List have different jobs
The World Anti-Doping Code defines anti-doping rule violations, including more than a positive test: use, tampering and other prohibited conduct also matter. The Code is revised periodically. The Prohibited List is a separate standard updated at least annually.[16]
The 2026 List applies from 1 January 2026, with prohibitions at all times, in competition or in specified sports.[14] Check the version relevant to your decision.
Performance enhancement alone does not define doping
Under Code Article 4.3, WADA considers inclusion when at least two criteria are met: performance enhancement or its potential, actual or potential health risk, and violation of the spirit of sport. Potential masking of prohibited use is a separate inclusion basis.[16]
Caffeine is monitored in 2026 but is not prohibited under WADA rules.[17] Monitoring means observation of use patterns; it is not itself a ban. Other sporting organisations may apply different rules.
Understand responsibility without assuming intent
For a presence violation, the Code's strict-liability principle does not require proof that the athlete intended to cheat. Fault can affect the consequences.[16] An accidental exposure and a deliberate attempt should therefore not be casually described as identical experiences.
At the same time, someone else's recommendation does not resolve an athlete's obligations. Good support means helping athletes understand their circumstances, obtain reliable answers and make decisions they can explain.
Rules should be read carefully enough to protect both fair competition and the people participating in it. A slogan about “natural ability” cannot replace that work.
Medicines and therapeutic use exemptions
Athletes can have medical conditions that require treatment. A therapeutic use exemption, or TUE, is the formal process for authorising a medically justified prohibited substance or method under defined conditions.[18]
Clinical prescribing and sporting authorisation have different purposes. They should be coordinated so treatment needs and participation requirements are both properly addressed.
The criteria protect treatment and fair participation
WADA's criteria require a supported diagnosis, an indicated treatment without a reasonable permitted alternative, and no expected enhancement beyond a return to normal health. The medical need must not result from earlier use of a then-prohibited substance or method without a TUE.[18]
Terms such as “loophole” can obscure this legitimate purpose. A person should not be stigmatised for having a health condition or for receiving an appropriately granted exemption.
Check the actual medicine and conditions
Inhaled beta-2 agonist exceptions have specific conditions; they do not cover every asthma medicine. Clenbuterol is prohibited within S1.[14]
Product, ingredient, route and the applicable conditions matter. Confirm them with the relevant anti-doping organisation and healthcare professional, especially when treatment or competition circumstances change.
Plan ahead while protecting care
Applications go through the appropriate anti-doping organisation, with recognition requirements sometimes applying at a higher competition level. Emergency or urgent treatment can permit a retroactive application, but approval still requires assessment.[18]
Urgent medical care should not be delayed for paperwork. Keep appropriate records and follow the relevant process afterwards. For planned treatment, allow time to clarify requirements so the athlete can focus on care and participation.
Quality checks reduce uncertainty; they do not erase it
Evidence for an ingredient and confidence in a purchased product are different questions. A paper about creatine monohydrate does not verify every container that carries that name.
The International Testing Agency identifies mislabelling, contamination and undeclared ingredients as supplement risks. It also states that WADA and anti-doping organisations do not approve or endorse supplements.[19]
Understand what independent testing covers
Independent batch testing for prohibited substances can reduce risk, but cannot guarantee that a product is completely free of them or that its use will never cause a violation. Keep evidence identifying the tested product and batch.[19]
Read the certification scheme's scope and confirm the relevant listing directly. A logo copied into a shop image is not a substitute for a matching entry. Check that the product, formulation and identifying details correspond to the item you are considering.
A purity measurement, manufacturing audit, ingredient-content check and screen for selected prohibited substances examine different aspects of quality. Ask which was performed. None, by itself, proves performance efficacy or suitability for every person.
Make a product easy to understand
Prefer a decision you can explain: a clear purpose, identifiable ingredients and a justified amount. A blend with undisclosed quantities is harder to compare with research and harder to assess alongside other products.
If a team supplies something, athletes should be able to see its identity, the reason for its use and the supporting information. An unlabelled scoop or a vague assurance makes that task unnecessarily difficult.
Cost matters too. Consider whether the likely benefit justifies the continuing expense and whether an ordinary food or a simpler arrangement meets the same need.
How Lithuanian and EU requirements fit together
EU food supplements are regulated as foods under a specific framework, including rules concerning composition and labelling. This differs from authorisation as a medicine.[20] It is inaccurate to describe the whole market as unregulated, and equally inaccurate to assume that lawful food marketing establishes clinical benefit.
In Lithuania, the State Food and Veterinary Service, VMVT, states that supplements placed on the market must be notified and included in the relevant list.[21] Notification should not be interpreted as proof of athletic efficacy or anti-doping clearance.
Check medicines through appropriate sporting resources
The Lithuanian Anti-Doping Agency provides a medicine-search service and guidance for athletes.[22] This is a useful local starting point for checking a medicinal product and identifying where further clarification is needed.
Use the exact product and relevant details. If a result is missing or unclear, ask the responsible organisation rather than treating silence as permission. A medicine database should not be treated as certification of a supplement mixture.
Know which question you are taking to whom
A clinician or pharmacist can assess treatment and interactions. A qualified sports dietitian can assess nutritional purpose and the evidence for a proposed aid. An anti-doping organisation can clarify the sporting process. A food authority addresses the relevant food-market requirements.
These roles complement one another. No single label or database entry answers every part of the decision.
When travelling or competing internationally, retain the exact identity of medicines and products. Similar branding across countries need not be enough to identify an equivalent formulation. Use the rules of the relevant event and organisation, and clarify any recognition requirements in advance.
Fairness includes informed choice and good support
Sport aims to compare performance under shared conditions, but athletes already differ in coaching, facilities, income, time and access to care. Recognising those differences helps make ethical discussion more thoughtful.
An aid being permitted does not make it necessary. Its use should remain a decision connected to the athlete's own aims, supported by understandable evidence. A person should be able to ask questions without being treated as less committed.
Consider pressure as well as individual choice
A team culture in which everyone is expected to take the same products can narrow real choice. Coaches can make room for discussion, explain the rationale, disclose commercial interests and support an athlete who declines an optional aid.
The promise of selection, approval or belonging should not depend on accepting an unexplained product. Responsibility also belongs with people who purchase, supply, promote or recommend it.
Distinguish treatment from an accusation
Medical care and fair participation should be considered together. A health condition or a legitimate treatment plan does not define someone's character, effort or achievement. Concerns about rules should be addressed through appropriate procedures and evidence.
Be honest about access and cost
A marginal performance gain may matter greatly in elite competition. Someone training for wellbeing may reasonably value simplicity, enjoyment and financial sustainability more highly. Neither needs to adopt the other's priorities.
Improving access to clear information, reliable food, professional support and suitable training environments can help many people. Those forms of progress deserve attention alongside new products.
A useful ethical question is whether the arrangement leaves athletes better informed, appropriately supported and free to pursue their own goals within the shared rules.
Testing, research and the next generation of aids
Anti-doping testing and supplement research answer different questions. One assesses compliance and evidence of prohibited use; the other investigates efficacy, safety or product characteristics. A negative result in one context is not a universal certificate for another.
WADA's Athlete Biological Passport follows selected biological variables over time to identify patterns that may indicate doping. It complements direct substance testing.[23] Interpretation belongs within the formal assessment process; a single unusual number should not become a public accusation.
Keep training methods in their own category
Blood-flow-restriction training uses external pressure, typically from a cuff, to restrict blood flow during exercise. Suitability and implementation need their own assessment.[24] It is not equivalent to a pharmacological “blood booster”, and combining the terms does not establish a shared mechanism or proven added benefit.
What should innovation demonstrate?
Future tools may combine physiological measurements, digital planning and more individualised products. Useful development would show that these additions improve decisions or outcomes compared with a simpler, credible alternative.
A wearable signal should not automatically trigger a substance recommendation. Researchers would need to validate the measurement, its interpretation, the proposed action and the consequences of repeated use.
Study populations also matter. Findings from a narrow group need careful evaluation before being applied to people of different ages, sexes, training backgrounds or health circumstances. Long-term use and combinations deserve direct investigation.
Let uncertainty guide the next question
A promising mechanism can justify a study. A disappointing result can help refine or abandon a claim. Progress is more useful when both are reported clearly and commercial promises remain proportionate to what has actually been learned.
The goal is a better-supported decision, with a transparent account of who benefits, how much, and at what practical cost.
A practical process for deciding whether an aid belongs
Three everyday decision points
These examples are illustrations. They show how the same process can produce different, reasonable decisions.
The evening gym session
Someone considers a stimulating pre-workout for late training. They compare the hoped-for session benefit with sleep, comfort and other caffeine sources.
The useful outcome is a manageable routine across the whole day.
The prescribed medicine
An athlete receives treatment for a diagnosed condition. They work with the treating professional and relevant anti-doping organisation to clarify requirements.
The purpose is appropriate care with the sporting process properly addressed.
The impressive new blend
A product cites ingredient studies but conceals quantities and cannot identify its claimed batch testing.
The missing information needs resolving before the offer can be assessed. Enthusiasm cannot fill those gaps.
Five steps to a clearer decision
-
Define the actual need.
Name the task, nutritional gap or medical concern. Ask whether training, food, rest or another practical change already addresses it.
-
Match evidence to that need.
Identify the studied preparation, people and outcome. Distinguish a direct performance result from a mechanism, marker or testimonial.
-
Check personal and sporting suitability.
Consider health, medicines, other products and the relevant rules. Resolve unclear classifications and any required medical or sporting authorisation.
-
Assess the product and full commitment.
Examine ingredient amounts, quality information, appropriate batch testing, cost and convenience. Keep the information needed to identify what was chosen and why.
-
Review the decision in an appropriate setting.
If use is suitable and agreed, evaluate it within the relevant plan before relying on it in competition. Review benefit, tolerance and practical burden; reconsider when the product, health situation or rules change.
For an ordinary permitted supplement, a purposeful record can help describe your experience. It cannot prove causation: training changes, expectations and normal variation can also affect performance. Avoid using self-observation as a way to validate an experimental or medically unsuitable substance.
A clear decision may be to use an aid for a defined purpose, choose another approach, obtain more information or decline. The quality of the decision comes from its reasons and fit, rather than the number of products involved.
Answers to recurring performance-aid claims
Does “legal supplement” mean permitted in sport?
No. Lawful sale and sporting permission are separate questions. Check the ingredient and the applicable rules, then assess the finished product. An online seller's description does not establish any of those answers.
Is every performance-enhancing aid doping?
No. Ergogenic benefit alone does not define an anti-doping violation. Shared sporting rules determine what is prohibited. Evidence, personal suitability and ethics remain relevant even when an aid is permitted.
Is caffeine banned by WADA?
It is not prohibited under the 2026 framework, although it is monitored.[17] That status does not establish a safe amount for every person. Check other rules if your competition operates under a different framework.
Does skin tingling mean a pre-workout is effective?
No. Beta-alanine can cause tingling, while its intended sports application involves increasing muscle carnosine over time.[7] A noticeable sensation is not a measure of improved performance or evidence that a blend is well suited to you.
Can an unlisted research compound still be prohibited?
Yes. The List contains broad categories as well as named examples. See section 7. An unsuccessful name search should lead to clarification, not a conclusion that use is permitted.
Do independent certification logos guarantee compliance?
No. Appropriate batch testing can reduce risk, but cannot eliminate it.[19] Verify the relevant listing and understand the scope of testing. Certification also does not demonstrate that the product will improve your performance.
Does a prescription automatically replace a TUE?
No. A prescription addresses treatment; where sporting authorisation is required, the relevant TUE process must also be followed.[16]
Does a natural ingredient have fewer risks?
Origin alone cannot answer that. Plant extracts can have pharmacological effects, interactions and differences in composition. Assess the actual preparation, relevant evidence and your circumstances, as explained in the herbal-supplement section.
Do more supplements produce better results?
Benefits do not simply add together. Each ingredient needs a clear purpose, and combinations can introduce uncertainty, duplicate amounts and increase cost. A simpler plan may be easier to understand and evaluate.
What is a useful first step for recreational exercisers?
Identify what is actually making training difficult or limiting progress. A workable schedule, suitable meals or qualified coaching may answer the need. Consider a product when it has a clear, evidence-supported role that fits your life.
Sources, dates and the limits of this guide
Sources and sporting context checked: 5 September 2026. The regulatory discussion uses the 2026 Prohibited List and the applicable Code and TUE framework. Rules, product formulations and available evidence can change; consult the relevant authority for a current individual decision.
Sports-nutrition guidance, small experimental studies, safety assessments and legal standards answer different questions. The research examples illustrate particular findings and limitations. They are not individual treatment plans or endorsements of commercial products.
- Maughan RJ, Burke LM, Dvorak J, et al. IOC consensus statement: dietary supplements and the high-performance athlete. British Journal of Sports Medicine, 2018;52:439–455; doi:10.1136/bjsports-2018-099027.Expert consensus on legitimate purposes, evidence and risks. It does not endorse a commercial product or universal supplement plan. Return to text ↑
- Shaw G, Lee-Barthel A, Ross MLR, Wang B, Baar K. Vitamin C-enriched gelatin supplementation before intermittent activity augments collagen synthesis. American Journal of Clinical Nutrition, 2017;105:136–143; doi:10.3945/ajcn.116.138594.Eight-man crossover experiment with blood markers and engineered tissue. It did not measure injury prevention or time to return to sport. Return to text ↑
- Nicol LM, Rowlands DS, Fazakerly R, Kellett J. Curcumin supplementation likely attenuates delayed onset muscle soreness (DOMS). European Journal of Applied Physiology, 2015;115:1769–1777; doi:10.1007/s00421-015-3152-6.Small, short crossover trial in 17 men using magnitude-based inference. It illustrates a soreness outcome, not established long-term adaptation or injury healing. Return to text ↑
- Australian Institute of Sport, Australian Sports Commission. Group A: Sports Supplement Framework. Practitioner framework.Evidence-supported applications in specific sporting situations. Classification is not independent certification of a finished product. Return to text ↑
- Australian Institute of Sport, Australian Sports Commission. Creatine. Sports Supplement Framework guidance.Used for monohydrate evidence, high-intensity applications and practical effects on body mass and tolerance. Return to text ↑
- Australian Institute of Sport, Australian Sports Commission. Caffeine. Sports Supplement Framework guidance.Summarises performance effects, response variation and sleep considerations. Sporting status is checked separately against 2026 WADA material. Return to text ↑
- Australian Institute of Sport, Australian Sports Commission. Beta-alanine. Sports Supplement Framework guidance.Explains muscle carnosine, selected performance applications and tingling. Sensation is distinct from the intended adaptation. Return to text ↑
- Australian Institute of Sport, Australian Sports Commission. Sodium Bicarbonate. Sports Supplement Framework guidance.Context-dependent buffering applications and gastrointestinal limitations. The article does not provide an individual ingestion protocol. Return to text ↑
- Australian Institute of Sport, Australian Sports Commission. Dietary Nitrate / Beetroot Juice. Sports Supplement Framework guidance.Benefits vary by exercise setting and athlete. Different beetroot products do not necessarily supply equivalent nitrate amounts. Return to text ↑
- National Center for Complementary and Integrative Health. Ashwagandha: Usefulness and Safety. Public evidence and safety summary.Distinguishes stress or sleep findings from insufficient athletic-performance evidence and identifies relevant safety concerns. Return to text ↑
- National Center for Complementary and Integrative Health. Rhodiola: Usefulness and Safety. Public evidence summary.Finds insufficient reliable evidence to establish usefulness. Preparations and study quality vary. Return to text ↑
- ANSES, French Agency for Food, Environmental and Occupational Health & Safety. Use of berberine-containing plants in food supplements. Safety assessment summary, 25 November 2019.Identifies pharmacological activity, interactions and potential adverse effects. This is not evidence of an athletic-performance benefit. Return to text ↑
- NIH Office of Dietary Supplements. Chromium: Fact Sheet for Health Professionals. Nutrient evidence summary.Used for the limited clinical significance of body-weight and body-fat findings; these do not establish enhanced athletic adaptation. Return to text ↑
- World Anti-Doping Agency. The 2026 Prohibited List. International Standard; effective 1 January 2026.Selected S0–S4 provisions and timing categories. Consult the complete applicable List for an individual decision. Return to text ↑
- Neelakantan H, Vance V, Wetzel MD, et al. Selective and membrane-permeable small molecule inhibitors of nicotinamide N-methyltransferase reverse high fat diet-induced obesity in mice. Biochemical Pharmacology, 2018;147:141–152; doi:10.1016/j.bcp.2017.11.007.Cell and mouse research; published online in 2017. It does not establish a human treatment or sports-use programme. Return to text ↑
- World Anti-Doping Agency. World Anti-Doping Code 2021. Code effective 1 January 2021.Selected Articles 1–2, 4 and 10: violations, List criteria, TUEs and consequences. The Code differs from the annual List. Return to text ↑
- World Anti-Doping Agency. The 2026 Monitoring Program. Monitoring programme effective in 2026.Caffeine is monitored in competition. Monitoring does not classify it as a prohibited substance. Return to text ↑
- World Anti-Doping Agency. Therapeutic Use Exemptions (TUEs). Athlete guidance and questions and answers.Explains criteria, application, recognition and retroactive exceptions. Approval depends on the individual case. Return to text ↑
- International Testing Agency. Supplements. Athlete Hub guidance.Explains labelling risks, absence of anti-doping endorsement and the benefits and limits of independent batch testing. Return to text ↑
- European Commission, Directorate-General for Health and Food Safety. Food supplements. Official overview of Directive 2002/46/EC and related requirements.Food regulation differs from medicinal-product authorisation and sporting permission. National requirements also matter. Return to text ↑
- Lithuanian State Food and Veterinary Service (VMVT). Maisto papildai [Food supplements]. Official Lithuanian market guidance.Confirms Lithuanian supplement-notification requirements. Notification does not establish sports efficacy or anti-doping clearance. Return to text ↑
- Lithuanian Anti-Doping Agency. Athlete information and medicine-search access. Official national guidance, in Lithuanian.Local starting point for medicine checks and clarification. A medicine-search service is not certification of supplement mixtures. Return to text ↑
- World Anti-Doping Agency. Athlete Biological Passport. Official programme overview.Explains longitudinal biological monitoring as a complement to direct testing. Individual findings require formal interpretation. Return to text ↑
- Patterson SD, Hughes L, Warmington S, et al. Blood Flow Restriction Exercise: Considerations of Methodology, Application, and Safety. Frontiers in Physiology, 2019;10:533; doi:10.3389/fphys.2019.00533.Expert review used to identify a distinct mechanical training method. Suitability and implementation require their own assessment. Return to text ↑