Researchers disagree as to whether large doses of vitamin C cause kidney stones. Vitamin C supplementation is recommended for groups with special considerations because the vitamin C is depleted in fighting the free radicals. Smokers, people with poor dietary intake, oral and other surgery patients, pregnant women, children with poor diets, elderly people, and people with inflammatory diseases such as rheumatoid arthritis and inflammatory bowel disease should consider taking supplements. If 2000 mg of vitamin C is taken one hour before exercise, it can reduce lung discomfort and wheezing in people with asthma. Dr. Losonszy at the Nation Institute for Aging found that older persons taking supplements of vitamin C and E have half the risk of dying a premature death.
Additional intake causes a rise in urinary excretion.
No harmful effects have been indicated for levels of 500 to 1000 mg a day. This information is not intended to be a substitute for professional medical advice. You should not use this information to diagnose or treat a health problem or disease without consulting with a qualified healthcare provider. Please consult your healthcare provider with any questions or concerns you may have regarding your condition.