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Nelson Textbook of Pediatrics (20th ed.)
It plays a vital role in the healthy functioning of many systems in the body, including the following: DNA (genetic material) synthesis Energy production (metabolism) Nerve cell health Neurological (brain) function Red blood cell (hemoglobin) formation Vitamin B12 plays a key role in the normal functioning of the brain and nervous system
Several studies have indicated that the efficacy of oral vitamin B12 supplements is comparable to that of vitamin B12 injections
The Absorption Challenge: Research published in the American Journal of Clinical Nutrition reveals that absorption rates for oral B12 vary dramatically based on individual factors
I usually inject this to my husband All the time
Always fast delivery and great product Been taking for 3 weeks and it seems to help a little but I am still tired
