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	Wellness Wheel Nutrition & Health States Tables Drug-Nutrient Interactions & Depletions Table Supplement Dosage Chart Herbal Dosage Chart

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Dosage Chart

Vitamin C

Helps boost the immune system. Some scientific evidence suggests that consumption of antioxidant vitamins may reduce the risk of certain forms of cancer. However, FDA has determined that this evidence is limited and not conclusive.


	Benefits Helps absorb other nutrients Helps maintain a healthy immune system Vitamin C is a powerful antioxidant			Precautions Healthy adults should not exceed the Tolerable Upper Intake Limits of 2000 mg daily.

Drug Nutrient Interactions

Current research does not indicate that this supplement should be taken to avoid depletions when taking any of the drug categories included in this table.

Arthritis Medications

Vitamin C is important for the maintenance and repair of connective tissue, cartilage and bone which are all important to joint health. Vitamin C is a powerful antioxidant that helps stop free radicals from damaging tissue, including joint tissue.

Antipsychotics

Some studies report that supplementation of vitamin C with atypical antipsychotics reduces oxidative stress and improves the outcome of schizophrenia. Consider supplementing with vitamin C in patients taking second-generation antipsychotics.

Anticoagulants / Antiplatelet Drugs

Concomitant use of warfarin with excessive doses of vitamin C (> 1000 mg per day) may alter the therapeutic benefits of warfarin and increase risk for clots. Caution patients to avoid excessive doses of vitamin C with warfarin and to have INRs checked if supplementing with vitamin C.

Lipid Drugs (Niacin)

Vitamin C in combination with other antioxidant vitamins (beta-carotene, selenium, and E) may reduce the therapeutic benefits of combinations of statins and niacin. Monitor lipid levels closely for potential changes in drug efficacy if using these antioxidants while taking statins + niacin.

Current research does not indicate that this supplement should be avoided when taking any of the drug categories included in this table.

Nutrition and Health State

If no prescription medications are being used, the following supplements may be beneficial for this health state. If prescription medications are being used, please see the drug-interaction database before making recommendations.

A daily multivitamin will help ensure adequate intake of all essential nutrients and promote overall health and well-being.

Diabetes – Type II

250-500 mg Studies show people with diabetes have lower levels of vitamin C verses those who do not have diabetes. In addition, vitamin C is a powerful antioxidant and helps maintain eye health.

Metabolic Syndrome

Vitamin C may play a role in maintaining healthy blood pressure and overall heart health. Use antioxidants w/caution if takin niacin + statins.

H. Pylori

Vitamin C may play a role in the overall health issues of those infected with H. pylori. Those infected with H. pylori or taking PPIs may be at risk for lower levels of vitamin C.

There may be interactions between certain vitamins, minerals, supplements, or herbs with prescription medications used for this health state. View the drug interaction section for more information.

Muscle Pain (e.g. Fibromyalgia)

High doses of vitamin C (> 500 mg per day) may decrease elimination of aspirin, salicylates, NSAIDs and other acidic drugs which can increase risk of side effects from these drugs

The dietary supplement information contained on this site has been compiled from published sources thought to be reliable, but it cannot be guaranteed. Efforts have been made to assure this information is accurate and current. However, some of this information may be purported or outdated due to ongoing research or discoveries. The authors, editors and publishers cannot accept responsibility for errors or omissions or for any consequences from applications of the information in this site and make no warranty, expressed or implied, with respect to the contents herein.