NUTRITION

What is the Optimal Vitamin C Intake?

Experiments showing how much vitamin C our body absorbs and excretes can give us a sense of how many vitamin C rich fruits and vegetables we should be eating each day.

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Doctors can circumvent our body’s natural barriers to vitamin C overload by dripping high levels directly in the blood stream of cancer patients. Is this a good idea? See:
• Intravenous Vitamin C for Terminal Cancer Patients (
• Vitamin C Supplements for Terminal Cancer Patients (
• The Role of Vitamin C in the Treatment of Terminal Cancer (

What about other common supplements? See, for example:
• Are Calcium Supplements Safe? (
• Are Calcium Supplements Effective? (
• The Best Way to Get Vitamin D: Sun, Supplements, or Salons? (
• Iodine Supplements Before, During, and After Pregnancy (
• Is Fish Oil Just Snake Oil? (

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Thanks for watching. I hope you’ll join in the evidence-based nutrition revolution!
-Michael Greger, MD FACLM

Image Credit: Frank Lindecke via flickr. Image has been modified.

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