Concentration, total formulation composition, pharmacy reputation, and cost matter more for most users
In individuals with confirmed B12 deficiency, correction may help normalise homocysteine metabolism, as deficiency has been associated with elevated homocysteine levels
Since NNMT activity has been connected to age-related metabolic alterations, researchers have also investigated its potential involvement in healthy aging (4)
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Current Gerontology and Geriatrics Research
Symptoms of real deficiency include fatigue, tingling or numbness in hands and feet, memory and concentration issues, mouth ulcers and pale skin, and a GP blood test is the only reliable way to confirm it