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- B12 keeps the intestines healthy for the proper digestion and absorption of food, as well as the metabolism of carbohydrates and fats

Loss of sterility or dosing accuracy potency declines often without visible change (colour change or cloudiness may be late indicators)

60 Two studies used methyl-B12, 58,60 the others did not mention the form

Theoretical concerns Copper accumulation: Each 2mg injection contributes about 0.03mg copper versus 0.9-2.2mg from daily diet

Epithalon restores youthful melatonin cycles, which are associated with more restful sleep older people have 40 percent more REM sleep