Vitamin C is a water-soluble vitamin that has a number of biological functions.
Our proprietary “Star-Rating” system was developed to help you easily understand the amount of scientific support behind each supplement in relation to a specific health condition. While there is no way to predict whether a vitamin, mineral, or herb will successfully treat or prevent associated health conditions, our unique ratings tell you how well these supplements are understood by the medical community, and whether studies have found them to be effective for other people.
For over a decade, our team has combed through thousands of research articles published in reputable journals. To help you make educated decisions, and to better understand controversial or confusing supplements, our medical experts have digested the science into these three easy-to-follow ratings. We hope this provides you with a helpful resource to make informed decisions towards your health and well-being.
| Used for | Amount | Why |
|---|---|---|
|
Anemia and Vitamin C Deficiency
|
100 to 250 mg once or twice per day |
|
|
Athletic Performance and Reducing Pain and Speeding Muscle Strength Recovery after Intense Exercise
|
400 mg daily for several days before and after intense exercise |
|
|
Bronchitis
|
200 mg daily |
|
|
Bruising and Vitamin C Deficiency
|
400 to 800 mg daily, with flavonoids |
|
|
Capillary Fragility and Vitamin C Deficiency
|
Treat deficiency with up to 1 gram daily |
|
|
Common Cold and Sore Throat
|
1 to 4 grams daily |
|
|
Gingivitis and Vitamin C Deficiency
|
300 mg daily |
|
|
Glaucoma
|
At least 2 grams daily |
|
|
Heart Attack and Vitamin C Deficiency
|
100 to 200 mg daily |
|
|
High Cholesterol
|
1,000 mg daily |
|
|
Infection
|
1 to 4 grams daily |
|
|
Male Infertility and Sperm Agglutination
|
1,000 mg daily |
|
|
Stress
|
1 to 3 grams daily |
|
|
Sunburn
(Vitamin E) |
2,000 to 3,000 mg vitamin C and 1,000 to 2,000 IU vitamin E |
|
|
Wound Healing
|
1 to 3 grams daily |
|
|
Asthma
|
1,000 to 1,500 mg daily |
|
|
Atherosclerosis
|
250 mg twice per day |
|
|
Athletic Performance and Vitamin C Deficiency
|
If deficient: 100 to 200 mg daily |
|
|
Autism
|
1 gram per 20 lbs (9 kg) body weight per day |
|
|
Cataracts
|
500 to 1,000 mg daily |
|
|
Cold Sores
(Flavonoids) |
200 mg with 200 mg flavonoids, three to five times daily |
|
|
Dysmenorrhea
(Rutin, Vitamin B3) |
200 mg niacin daily, 300 mg vitamin C daily, and 60 mg rutin daily througout menstrual cycle; for cramps: 100 mg niacin every two to three hours |
|
|
Endometriosis
(Vitamin E) |
1,000 mg vitamin C and 1,200 IU vitamin E daily |
|
|
Female Infertility and Luteal Phase Defect
|
750 mg daily |
|
|
Gastritis
|
5 grams daily |
|
|
Gingivitis
(Flavonoids) |
300 mg of vitamin C, plus 300 mg of flavonoids daily |
|
|
Gout
|
0.5 to 8 grams daily |
|
|
Immune Function
|
Consult a qualified healthcare practitioner |
|
|
Influenza
|
100 mg daily |
|
|
Pancreatic Insufficiency
|
540 mg daily |
|
|
Parkinson’s Disease
(Vitamin E) |
3,000 mg of vitamin C and 3,200 IU of vitamin E |
|
|
Pre- and Post-Surgery Health and Vitamin C Deficiency
|
100 to 250 mg once or twice per day |
|
|
Preeclampsia and High-Risk Women
(Vitamin E) |
1,000 mg daily vitamin C with 400 IU vitamin E |
|
|
Pregnancy and Postpartum Support and Women on Low Vitamin C Diets
|
100 mg daily |
|
|
Schizophrenia
|
Consult a qualified healthcare practitioner |
|
|
Skin Ulcers
|
1,000 mg daily |
|
|
Sprains and Strains
|
250 to 500 mg with meals and at bedtime |
|
|
Sunburn
(Vitamin E) |
Apply a formula containing 2% vitamin E and 5% vitamin C before sun exposure |
|
|
Sunburn
(Melatonin, Vitamin E) |
Apply a formula containing 2% vitamin E, 5% vitamin C, and 1% to 2.5% melatonin before sun exposure |
|
|
Type 1 Diabetes
|
500 mg twice per day |
|
|
Type 2 Diabetes
|
500 mg twice per day |
|
|
Urinary Tract Infection
|
Refer to label instructions |
|
|
Age-Related Cognitive Decline
|
Refer to label instructions |
|
|
Alcohol Withdrawal
|
Refer to label instructions |
|
|
Amenorrhea
(Clomiphene) |
Refer to label instructions |
Vitamin C combined with the drug clomiphene, which affects female hormone levels, is more effective at stimulating ovulation in women with amenorrhea than either substance alone. |
|
Asthma
(Vitamin E, Selenium) |
Refer to label instructions |
|
|
Bipolar Disorder
|
Refer to label instructions |
|
|
Childhood Diseases
|
Refer to label instructions |
|
|
Chronic Obstructive Pulmonary Disease
|
Refer to label instructions |
|
|
Colon Cancer
|
Refer to label instructions |
|
|
Ear Infections
|
Refer to label instructions |
|
|
Eczema
|
Refer to label instructions |
|
|
Gallstones
|
Refer to label instructions |
|
|
Halitosis, Gingivitis, and Vitamin C Deficiency
|
Refer to label instructions |
|
|
Hay Fever
|
Refer to label instructions |
|
|
Heart Attack
|
Refer to label instructions |
|
|
Hepatitis
|
Refer to label instructions |
|
|
HIV and AIDS Support
|
Refer to label instructions |
|
|
Hives
|
Refer to label instructions |
|
|
Hypertension
|
Refer to label instructions |
|
|
Hypoglycemia
|
Refer to label instructions |
|
|
Leukoplakia
|
Refer to label instructions |
|
|
Low Back Pain
|
Refer to label instructions |
|
|
Macular Degeneration
|
Refer to label instructions |
|
|
Menopause
|
Refer to label instructions |
|
|
Menorrhagia
|
Refer to label instructions |
|
|
Morning Sickness
|
Refer to label instructions |
|
|
Peptic Ulcer
|
Refer to label instructions |
|
|
Prostatitis
|
Refer to label instructions |
|
|
Sickle Cell Anemia
|
Refer to label instructions |
|
|
Sinusitis
|
2,000 mg per day of hydroxyethylrutosides |
|
|
Tardive Dyskinesia
|
Refer to label instructions |
|
|
Type 1 Diabetes
(Selenium, Vitamin A, Vitamin E) |
Refer to label instructions |
|
|
Type 1 Diabetes and Diabetic Retinopathy
(Selenium, Vitamin A, Vitamin E) |
Refer to label instructions |
|
|
Type 2 Diabetes and Diabetic Neuropathy
(Selenium, Vitamin A, Vitamin E) |
Refer to label instructions |
|
|
Vitiligo
|
Refer to label instructions |
|
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The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2013.