Topic: Performance Lab

David Tomen warns against cheap, synthetic multivitamins found in supermarkets, which often use ground-up rock for minerals and contain toxic fillers like silicon dioxide and magnesium stearate. He recommends seeking chelated minerals and food-based vitamins. Tomen praises UK-based OptiNutra and their Performance Lab line for using natural ingredients and fermented tapioca capsules instead of synthetic alternatives.