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A practical daily stack for hair protection includes a high-quality multivitamin as a baseline, plus additional iron (if ferritin is below 50 ng/mL, under medical supervision), zinc at 15-30 mg with 1-2 mg copper, vitamin D3 at 2,000-5,000 IU depending on baseline levels, biotin at 2,500-5,000 mcg (remembering the thyroid lab caveat), and a B-complex covering B12 and folate

[DOI] [PubMed] [Google Scholar] Townsend DM, Tew KD, Tapiero H

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In addition, specific amino acid deficiency or the immunosuppressive effect of certain amino acid metabolism can damage the function of immune cells, including effector T cells, in the tumor microenvironment

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Research shows 5-Amino-1MQ inhibits NNMT (Nicotinamide N-methyltransferase)