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2. These High-Quality Vitamin B12 Supplements Can Help ... - AOL

   www.aol.com/lifestyle/high-quality-vitamin-b12...

   Again, the daily recommended dietary allowance of vitamin B12 for most adults is 2.4 micrograms, stretching up to 2.6 and 2.8 micrograms if you’re pregnant or nursing.

3. How vitamin B12 could give you an energy boost - AOL

   www.aol.com/finance/vitamin-b12-could-energy...

   Vitamin B12 does also accumulate in a few plant-based sources, including some mushrooms, seaweed, and nutritional yeast, but not enough to fortify vegans, who, in particular, should consider being ...

4. Vitamin B12 - Wikipedia

   en.wikipedia.org/wiki/Vitamin_B12

   The oral daily dose far exceeds the vitamin requirement because the normal transporter protein-mediated absorption is absent, leaving only very inefficient intestinal passive absorption. [57] [58] Injection side effects include skin rash, itching, chills, fever, hot flushes, nausea and dizziness. Oral maintenance treatment avoids this problem ...

5. Vitamin B12 deficiency - Wikipedia

   en.wikipedia.org/wiki/Vitamin_B12_deficiency

   Initially in high daily doses, followed by less frequent lower doses, as the condition improves. [3] If a reversible cause is found, that cause should be corrected if possible. [11] If no reversible cause is found, or when found it cannot be eliminated, lifelong vitamin B 12 administration is usually recommended. [12] A nasal spray is also ...

6. What Happens to Your Body on a Strictly Vegan Diet - AOL

   www.aol.com/lifestyle/happens-body-strictly...

   Plant foods rarely contain vitamin B12, so supplementing is essential for vegans. Other nutrients in short supply include vitamin D , iodine , iron , zinc , calcium and omega-3 fats .

7. Vegan nutrition - Wikipedia

   en.wikipedia.org/wiki/Vegan_nutrition

   The Dietitian's Guide to Vegetarian Diets writes that there is little reason to advise vegans to increase their protein intake; but erring on the side of caution, the authors recommend a 25 percent increase over the RDA for adults, to 1 g/kg (.45 g/lb) of body weight. [95]