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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. Vitamin B12 - Wikipedia

   en.wikipedia.org/wiki/Vitamin_B12

   The US National Academy of Medicine updated estimated average requirements (EARs) and recommended dietary allowances (RDAs) for vitamin B 12 in 1998. [6] The EAR for vitamin B 12 for women and men ages 14 and up is 2.0 μg/day; the RDA is 2.4 μg/d. RDA is higher than EAR to identify amounts that will cover people with higher-than-average ...

4. The Top Signs You Have a Vitamin B12 Deficiency - AOL

   www.aol.com/top-sign-vitamin-b12-deficiency...

   The Good Housekeeping Institute tested more than 30 brands of B12 supplements, and chose Nature made B12 1000mcg as the best overall option, and Garden of Life Vitamin Code Raw B12 as the best ...

5. 8 vitamins and supplements for weight loss backed by science

   www.aol.com/8-vitamins-supplements-weight-loss...

   Vitamin B12. Vitamin B12 helps ... suggesting an association between calcium and vitamin D supplements and diet-induced weight loss. 4. Magnesium ... Some side effects of green coffee extract can ...

6. Vitamin B12 deficiency - Wikipedia

   en.wikipedia.org/wiki/Vitamin_B12_deficiency

   Vitamin B 12 is a major dietary methyl donor, involved in the one-carbon cycle of metabolism and a recent genome-wide association (GWA) analysis showed that increased DNA methylation is associated with increased BMI in adults, [60] consequently a deficiency of vitamin B 12 may disrupt DNA methylation and increase non-communicable disease risk ...

7. Human nutrition - Wikipedia

   en.wikipedia.org/wiki/Human_nutrition

   The Recommended Dietary Allowance (RDA) for vitamin B12 is 0.9-2.4 μg/day, while the estimated average requirement in the U.S. and Canada is 0.7-2 μg/day. Elderly individuals with plasma vitamin B12 levels below 148 pmol/L are considered severely deficient, and those with levels between 148 and 221 pmol/L are marginally deficient.

8. Vitamin B12 for Weight Loss: Does It Work? - AOL

   www.aol.com/vitamin-b12-weight-loss-does...

   Eating more foods that contain B12 is one way to help boost a deficiency. ... vitamin B12 injections may be recommended. Vitamin B12 injections are generally safe, with few side effects and the ...

9. Gastritis - Wikipedia

   en.wikipedia.org/wiki/Gastritis

   For those with pernicious anemia, vitamin B12 supplements are recommended either by mouth or by injection. [3] People are usually advised to avoid foods that bother them. [10] Gastritis is believed to affect about half of people worldwide. [4] In 2013 there were approximately 90 million new cases of the condition. [11]