Research
Adherence
Genetic testing for exercise prescription (e.g., predicting 'power' vs 'endurance' response) lacks sufficient scientific evidence and is not currently supported as a scientifically-sound approach.
Do not rely on commercial genetic tests to dictate your training program (e.g., whether you should do more strength or cardio work). The science does not currently support using DNA to prescribe specific training protocols. Focus on proven training principles and monitor your actual response to training.
StrongRefutesHIGH confidence
Mainstream testing for personalized training or exercise prescription based on genotype is not currently supported as a scientifically-sound approach, although it is likely to be a common and viably employed coaching tool within the next decade
Why this rating
Based on a review of multiple studies showing lack of replication and insufficient sample sizes.
Source
Sport Nutrigenomics: Personalized Nutrition for Athletic Performance
Nanci S. Guest et al. · Frontiers in Nutrition · 2019
DOI 10.3389/fnut.2019.00008
narrative_reviewCited 170×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →