Incredible Can Too Much Vitamin C Make You Throw Up Advice. Taking very large doses of vitamin c has been shown to cause an overdose in. Web if you consume more than 2,000 mg of vitamin c, you may develop severe gastrointestinal irritation and diarrhea.

Web too much vitamin c is bad for you because it can cause side effects and symptoms such as diarrhea, nausea,. Web the upper limit for all adults is 2,000 mg a day. Taking very large doses of vitamin c has been shown to cause an overdose in.