I find I can take up to 7 or 8 tablets/capsules per day without a problem, but if I take more than that, I have a reaction. It's hard to describe the reaction - I get waves of an all-over ill feeling, heart will beat a little faster. At night it wakes me up. The same reaction occurs regardless of supplement type, so I'm guessing it must be one of the fillers or "other ingredients". Magnesium stearate seems to be the common denominator. When I looked this up, the consensus seems to be that it shouldn't cause a problem. Does anyone else have a problem with this or other ingredients? What type of reaction do you get? Also, can you take supplements that come in other than tablet/capsule forms?