Vitamin B12 injections are largely considered to be very safe, with no major side effects regularly reported
In therapy, synthetic or bioidentical peptides are introduced, usually by injection but sometimes through capsules, creams, or nasal sprays, to mimic or enhance these natural signals
When Are B12 Injections Needed
Oral supplements typically increase levels within one to two weeks, with normalisation taking three to six months depending on deficiency severity
Bazin et al
Green tea catechins, particularly Epigallocatechin-3-gallate (EGCG), have shown improvements in insulin sensitivity and cognitive performance in metabolic cohorts, mechanisms that could benefit thyroid patients given their shared metabolic vulnerabilities (223226)