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For a general deficiency, many protocols start with 100 mcg injections daily or every other day for the first week
The shipping cost depend on the products' weight and volume and the detail address of yours
Chen B, Zhao L, Yang R, Xu T
Digestive and Absorption Issues Conditions like IBS or celiac often prevent proper absorption of B-12 from supplements, but injections bypass the digestive tract
If either is present, do not use the liquid
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