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methylcobalamin b12-injections-side effects Injection (Vitamin B12) Feeling worse after B12 Injection:
Description
PMID 16163497

People need at least 1,200 calories daily, and the hCG diet can cause vitamin and nutrient deficiencies
doi: 10.1002/sim.4080 44 Ates BulutESoysalPAydinAEDokuzlarOKocyigitSEIsikAT

How fast do IM shots work

The latter is better, but we recommend methylcobalamin, as it includes a methyl group and directly aids in lowering homocysteine levels and in fixing nerve damage, two issues often faced by pernicious anemia and B12 deficiency patients

In the case of vitamin B 12 there is no UL, as there is no human data for adverse effects from high doses