ReviewNutrients2017
Intended or Unintended Doping? A Review of the Presence of Doping Substances in Dietary Supplements Used in Sports.
Review in Nutrients, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers, 3 of them syntheses that pooled it.
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
84 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Forensic Perspective of Unintentional Doping, Cardiovascular Health, and the Role of Nutrition in Competitive Sports.Nutrients · 2026Pooled it
- Pooled it
- Pooled it
- Caffeine's influence on vertical jump height: a real-life collegiate student-athlete approach.Journal of the International Society of Sports Nutrition · 2025Trial
- The Effects of 6 Weeks ofNutrients · 2021Trial
- Effects of placebo on bench throw performance of Paralympic weightlifting athletes: a pilot study.Journal of the International Society of Sports Nutrition · 2019Trial
- Review
- A Theory of Planned Behaviour-Based Intervention on Dietary Supplement Use Among Varsity Athletes: A Pilot Randomized Controlled Trial.Sports (Basel, Switzerland) · 2026Article
- From Mechanisms to Practice: Gut Microbiome-Based Strategies for Supporting Recovery in Elite Athletes.Nutrients · 2026Review
- The Role of Athlete Support Personnel in Anti-Doping: A Narrative Review of Contemporary Evidence.Healthcare (Basel, Switzerland) · 2026Review
- Proactive surveillance of foodborne bioactives by integrated dietary exposure and urinary excretion assessment.NPJ science of food · 2026Article
- Article
- From labels to influencers: evaluating the alignment of nitrate and beetroot juice claims on sports supplement marketing with scientific consensus.Frontiers in nutrition · 2026Article
- Knowledge and attitudes as correlates of dietary supplement use among adults in Saudi Arabia: a cross-sectional online survey of a predominantly Riyadh-based convenience sample.Frontiers in public health · 2026Article
- Frequency of intravenous therapy use in elite adult track and field athletes.Frontiers in sports and active living · 2026Article
- Supplementation of Japanese elite athletes for the Paris 2024 Olympic games: differences according to nutritional support experience.Frontiers in sports and active living · 2026Article
- Sleep and Athletic Performance: A Multidimensional Review of Physiological and Molecular Mechanisms.Journal of clinical medicine · 2025Review
- Protein and Amino Acid Supplementation Among Recreational Gym Goers and Associated Factors-An Exploratory Study.Journal of functional morphology and kinesiology · 2025Article
- Exploring Doping Awareness: Medical Experts' Perspectives and Their Commitment to Doping Prevention.Pharmacy (Basel, Switzerland) · 2025Article
- Sports Supplement Use in Road Cycling: A Comparative Analysis by Sex and Competitive Category.Sports (Basel, Switzerland) · 2025Article
24 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionThe use of dietary supplements is increasing among athletes, year after year. Related to the high rates of use, unintentional doping occurs. Unintentional doping refers to positive anti-doping tests due to the use of any supplement containing unlisted substances banned by anti-doping regulations and organizations, such as the World Anti-Doping Agency (WADA). The objective of this review is to summarize the presence of unlabeled doping substances in dietary supplements that are used in sports. METHODOLOGY: A review of substances/metabolites/markers banned by WADA in ergonutritional supplements was completed using PubMed. The inclusion criteria were studies published up until September 2017, which analyzed the content of substances, metabolites and markers banned by WADA.
results446 studies were identified, 23 of which fulfilled all the inclusion criteria. In most of the studies, the purpose was to identify doping substances in dietary supplements. DISCUSSION: Substances prohibited by WADA were found in most of the supplements analyzed in this review. Some of them were prohormones and/or stimulants. With rates of contamination between 12 and 58%, non-intentional doping is a point to take into account before establishing a supplementation program. Athletes and coaches must be aware of the problems related to the use of any contaminated supplement and should pay special attention before choosing a supplement, informing themselves fully and confirming the guarantees offered by the supplement.
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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.