Performance
Performance covers what people take around training: creatine, beta-alanine, citrulline malate, protein, electrolytes. It's one of the best-studied categories on the site — several of these compounds have decades of controlled trial data behind a single, well-defined effect. That said, evidence quality still varies within the group, so check the grade on each product rather than assuming the whole category is equally proven.
7 products · sorted by evidence grade
When the evidence changes, we’ll tell you.
One short email a month. New A-grades, downgraded claims, and reader questions.
Medical disclaimer. The information on this site is provided for educational purposes only and is not intended as medical advice. It does not constitute a diagnosis, treatment plan, or recommendation for any specific health condition. Always consult a qualified healthcare professional before making changes to your supplement regimen, diet, or lifestyle — especially if you are pregnant, nursing, taking medications, or managing a medical condition.
Affiliate disclosure. Some links on this site are affiliate links. If you purchase through them, we may earn a small commission at no extra cost to you. This never influences our editorial assessments — products are graded solely on the evidence.