it does, but only for some. for me it causes massive muscle cramps, no matter how much water I drink. other then that, creatine is considered the only suppleme

it does, but only for some. for me it causes massive muscle cramps, no matter how much water I drink. other then that, creatine is considered the only supplement (protein not considered a supplement) that has virtually no side effects and known gain. caffeine is behind that with some side effects. beyond that, most other supplements havent been either to have proven benefits and proven no side effects