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Monitoring & Follow-up Your provider may recommend periodic blood tests (e.g., IGF-1 levels) to monitor hormone levels and treatment response

If you want the full picture of perioperative supplementation beyond B12, my companion article on supplements for the hospital admission and early recovery after abdominoplasty (tummy tuck) covers the full protocol for that phase

This guide gives you the head-to-head breakdown: mechanisms, evidence, dosing, when to choose each, and how to combine them for maximum effect

Two randomized trials, different regions and timeframes

Sirvi et al., 1987

Have alcohol use disorder: Too much alcohol can harm the digestive system and make it difficult to absorb vitamin B12