How to Test for Functional Vitamin B12 Deficiency
Channel: NutritionFacts.org
Date: 2020-08-31

Many doctors mistakenly rely on serum B12 levels in the blood to test for vitamin B12 deficiency.

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Now if you do get your homocysteine tested and despite both B12 supplementation and eating beans and greens it’s still too high (meaning double digits), I have a suggestion, as covered in the final two videos in this video series: Should Vegetarians Take Creatine to Normalize Homocysteine? (http://nutritionfacts.org/video/should-vegetarians-take-creatine-to-normalize-homocysteine) and The Efficacy and Safety of Creatine for High Homocysteine (http://nutritionfacts.org/video/the-efficacy-and-safety-of-creatine-for-high-homocysteine).

How did we end up here? Watch the full series if you haven’t yet:
• What to Eat for Stroke Prevention (http://nutritionfacts.org/video/what-to-eat-for-stroke-prevention)
• What Not to Eat for Stroke Prevention (http://nutritionfacts.org/video/what-not-to-eat-for-stroke-prevention)
• Do Vegetarians Really Have Higher Stroke Risk? (http://nutritionfacts.org/video/do-vegetarians-really-have-higher-stroke-risk)
• Vegetarians and Stroke Risk Factors—Vitamin D? (http://nutritionfacts.org/video/vegetarians-and-stroke-risk-factors-vitamin-d)
• Vegetarians and Stroke Risk Factors—Omega 3s? (http://nutritionfacts.org/video/vegetarians-and-stroke-risk-factors-omega-3s)
• Vegetarians and Stroke Risk Factors—Vegan Junk Food? (http://nutritionfacts.org/video/vegetarians-and-stroke-risk-factors-vegan-junk-food)
• Vegetarians and Stroke Risk Factors—Saturated Fat? (http://nutritionfacts.org/video/vegetarians-and-stroke-risk-factors-saturated-fat)
• Vegetarians and Stroke Risk Factors—Animal Protein? (http://nutritionfacts.org/video/vegetarians-and-stroke-risk-factors-animal-protein)
• Vegetarians and Stroke Risk Factors—Vitamin B12 & Homocysteine? (http://nutritionfacts.org/video/vegetarians-and-stroke-risk-factors-vitamin-b12-and-homocysteine)
• How to Test for Functional Vitamin B12 Deficiency (http://nutritionfacts.org/video/how-to-test-for-functional-vitamin-b12-deficiency)

Have a question about this video? Leave it in the comment section at http://nutritionfacts.org/video/how-to-test-for-functional-vitamin-b12-deficiency and someone on the NutritionFacts.org team will try to answer it.


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

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