ArticleJournal of sports science & medicine2021
Undeclared Doping Substances are Highly Prevalent in Commercial Sports Nutrition Supplements.
Article in Journal of sports science & medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
28 citing papers in PubMed, 63 citations in OpenAlex.
- Potential Cardiovascular Risks of Phenethylamine Analogues in Food Supplements: Evidence from Vasocontraction of Rat Artery Segments.Cardiovascular toxicology · 2026Article
- Social Media as a Double-Edged Sword in Sports Nutrition Dissemination: Opportunities, Challenges, and Pathways Forward.Current nutrition reports · 2026Review
- Systematic review of undeclared prohibited substances and pharmacological adulterants in dietary supplements: prevalence, detection, and risks in sport.Frontiers in sports and active living · 2026Review
- Frequency of intravenous therapy use in elite adult track and field athletes.Frontiers in sports and active living · 2026Article
- Analysis of β-Methylphenethylamine (BMPEA) and Its Novel Metabolites in Rat Blood Using MMSPE and UPLC-qTOF-MS.Toxics · 2025Article
- Adulteration of Sports Supplements with Anabolic Steroids-From Innocent Athlete to Vicious Cheater.Nutrients · 2025Review
- Quantitative in vitro-to-in vivo extrapolation of human adrenergic and trace amine-associated receptor 1 potencies of pre-workout supplement ingredients using physiologically based kinetic modelling-based reverse dosimetry.Archives of toxicology · 2025Article
- Rapid detection of illegal selective androgen receptor modulators in unregistered supplements using a combination of selected solid-state analytical methods.ADMET & DMPK · 2025Article
- Fitness and Dietary Supplements: A Cross-Sectional Study on Food Practices and Nutrivigilance.Nutrients · 2024Article
- Article
- Article
- Development of a screener to assess athlete risk behavior of not using third-party tested nutritional supplements.Frontiers in nutrition · 2024Article
- A Behaviourally Informed Approach to Reducing the Risk of Inadvertent Anti-doping Rule Violations from Supplement Use.Sports medicine (Auckland, N.Z.) · 2023Review
- Article
- Notifications and Health Consequences of Unauthorized Pharmaceuticals in Food Supplements.Pharmacy (Basel, Switzerland) · 2023Article
- Dietary Supplements: A Gateway to Doping?Nutrients · 2023Review
- The association between subjective anti-doping knowledge and objective knowledge among Japanese university athletes: a cross-sectional study.Frontiers in sports and active living · 2023Article
- Sports foods are not all they shake up to be. An audit of formulated supplementary sports food products and packaging in Australian retail environments.Frontiers in nutrition · 2023Article
- Importance of "meal first" strategy and effective situations of supplement use in elite athletes: Japan high performance sport center position stand.Frontiers in sports and active living · 2023Review
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sports nutrition supplements have previously been reported to contain undeclared doping substances. The use of such supplements can lead to general health risks and may give rise to unintentional doping violations in elite sports. To assess the prevalence of doping substances in a range of high-risk sports nutrition supplements available from Dutch web shops. A total of 66 sports nutrition supplements - identified as potentially high-risk products claiming to modulate hormone regulation, stimulate muscle mass gain, increase fat loss, and/or boost energy - were selected from 21 different brands and purchased from 17 web shops. All products were analyzed for doping substances by the UK life sciences testing company LGC, formerly known as the Laboratory of the Government Chemist, using an extended version of their ISO17025 accredited nutritional supplement screen. A total of 25 out of the 66 products (38%) contained undeclared doping substances, which included high levels of the stimulants oxilofrine, β-methylphenethylamine (BMPEA) and N,β-dimethylphenethylamine (NBDMPEA), the stimulant 4-methylhexan-2-amine (methylhexaneamine, 1,3-dimethylamylamine, DMAA), the anabolic steroids boldione (1,4-androstadiene-3,17-dione) and 5-androstene-3β,17α-diol (17α-AED), the beta-2 agonist higenamine and the beta-blocker bisoprolol. Based upon the recommended dose and the potential variability of analyte concentration, the ingestion of some products identified within this study could pose a significant risk of unintentional doping violations. In addition to inadvertent doping risks, the prescribed use of 3 products (4.5%) could likely impose general health risks.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.