NUTRITION

Flashback Friday: 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.

Doctors can circumvent our body’s natural barriers to vitamin C overload by dripping high levels directly in the bloodstream of cancer patients. Is this a good idea? See:
• Intravenous Vitamin C for Terminal Cancer Patients (https://nutritionfacts.org/video/intravenous-vitamin-c-for-terminal-cancer-patients)
• Vitamin C Supplements for Terminal Cancer Patients (https://nutritionfacts.org/video/vitamin-c-supplements-for-terminal-cancer-patients)
• The Role of Vitamin C in the Treatment of Terminal Cancer (https://nutritionfacts.org/video/the-role-of-vitamin-C-in-the-treatment-of-terminal-cancer)

What about other common supplements? See, for example:
• Are Calcium Supplements Safe? (https://nutritionfacts.org/video/are-calcium-supplements-safe)
• Are Calcium Supplements Effective? (https://nutritionfacts.org/video/are-calcium-supplements-effective)
• The Best Way to Get Vitamin D: Sun, Supplements, or Salons? (https://nutritionfacts.org/video/the-best-way-to-get-vitamin-d-sun-supplements-or-salons/)
• Iodine Supplements Before, During, and After Pregnancy (https://nutritionfacts.org/video/iodine-supplements-before-during-and-after-pregnancy/)
• Is Fish Oil Just Snake Oil? (https://nutritionfacts.org/video/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

Captions for this video are available in several languages; you can find yours in the video settings.

Image credit: Frank Lindecke/flickr. Image has been modified.

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