Awasome High Doses Of Vitamin C For Pain Advice. Consuming excess vitamin c through supplements may cause digestive. If you take more than 2,000mg of vitamin c, it can lead to negative side effects like abdominal pain,.

Web the most common negative effects of high doses of vitamin c are gastrointestinal distress such as gastric. The upper limit for all adults is 2,000 mg a day. Taking large amounts (more than 1,000mg per day) of vitamin c can cause: