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Some studies also point to its role in supporting brain-derived neurotrophic factor, a protein that helps neurons survive and form new connections
Symptoms of vitamin B-12 deficiency include: Fatigue Difficulty concentrating Decreased mood Loss of appetite Poor memory Constipation Higher-risk groups for vitamin B-12 deficiency include people with intestinal disorders such as Crohns or Celiac disease, as well as those who suffer from muscular degeneration, Lou Gehrigs disease or diabetes
It has been found to be key in preventing and combating a number of serious health concerns, including various types of cancer
Jorgensen KV et al
The total daily dose typically does not exceed 0.50 mg to 0.75 mg, as higher amounts have not demonstrated proportionally greater benefits in available research
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