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A new report by the Clean Label Project has found that protein powders may contain something other than muscle-building nutrients: lead and cadmium, both of which are toxic.. The national ...
Plant-based protein powders—made from rice, peas or soy—were found to contain triple the amount of lead compared to whey protein powders, which are made from the liquid byproduct of cheese ...
Plant-based protein powders were particularly concerning, with higher levels of lead and cadmium than whey-based powders. Organic protein powders also tested positive for lead at a higher level ...
Protein shakes, made from protein powder (center) and milk (left), are a common bodybuilding supplement. Bodybuilders may supplement their diets with protein for reasons of convenience, lower cost (relative to meat and fish products), ease of preparation, and to avoid the concurrent consumption of carbohydrates and fats.
Protein supplements are extracts or concentrates of high protein foodstuffs, used in bodybuilding and as dietary supplements to fulfill protein intake in a lean and pure source of proteins and amino acids. They have three main variants: concentrate (food is taken and concentrated into a smaller volume with some fat and carb present), isolate ...
Ephedrine (usually as Ephedra extract) was a common ingredient in many pre-workout supplements in the 1990s and early 2000s, sometimes in combination with caffeine and aspirin (the so-called ECA stack), however, following many reports of serious side effects and some deaths, it was banned for use in supplements by the FDA in 2004 throughout the ...