b12 injections and heavy periods can cause Heavy periods are common may just be normal for How Long Does It Take
Description
Comparative studies between intramuscular and subcutaneous administration are lacking.21 In some countries, nasal or sublingual B12 preparations

Explore causes, symptoms, treatments, side effects, and tips to improve B12 absorption.
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Timing: Morning injections are preferred, aligning with natural circadian fat metabolism
