Athletes often take 5-15 supplements daily — pre-workouts, protein, creatine, vitamins, minerals, and more. The more supplements in your stack, the higher the risk of interactions, duplicate ingredients, and exceeding safe dosage limits.
May counteract creatine's ergogenic benefits. Some studies show caffeine blunts creatine's performance effects.
Taking multiple fortified products can lead to duplicate B-vitamins, zinc, and iron — potentially exceeding safe upper limits.
These three minerals compete for absorption. Taking them all at once reduces effectiveness of each.
Common in B-complex and pre-workouts. Long-term intake above 100 mg/day can cause nerve damage.
Enter all your supplements to get a safety score, interaction warnings, and duplicate alerts.