While true deficiency can cause serious problems, many people end up taking doses far higher than they need
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For hair specifically, it helps your body metabolise amino acids (the building blocks of hair) which are crucial for strong, healthy strands
"Active B12 is essential for red blood cell production and energy metabolism
Heres my game plan: Test for intrinsic factor antibodies if my doctor offers this Try high-dose sublingual B12 (5000mcg daily) for 8 weeks as a test If my B12 stays below 400 pg/mL, go straight to injections Calculate the cost difference to justify the investment The 10% Rule If youre absorbing less than 10% of your oral B12 (you can estimate this by comparing your supplement dose to your blood response), weekly shots often cost less than daily high-dose pills
Long-Term Nutritional Follow-Up After Gastric Banding BOMSS recommends specialist MDT follow-up for at least two years post-surgery with lifelong primary care monitoring thereafter, including annual blood tests covering B12, full blood count, ferritin, vitamin D, and folate
