Leptin, implicated in inflammatory, mitogenic, and pro-angiogenic pathways, has been associated with breast cancer development, with studies indicating that inhibiting leptin signaling reduces the growth of breast cancer induced by carcinogens [12]
Vitamin B12 deficiency is more prevalent than many people realise: Around 6% of the UK population has B12 deficiency This rises to approximately 20% in those over 60 An estimated 1 in 10 people in the UK may have inadequate B12 levels 6% of men and 10% of women aged 19-64 have low serum B12 concentrations Among women of reproductive age (19-49), 11% have low B12 Interestingly, research suggests that deficiency is often due to absorption problems rather than dietary intake
Alboni S, Benatti C, Capone G, Corsin D, Caggia F, et al
However, the vast majority of these adverse reports come from people who are recklessly abusing the peptide
There is no risk of dangerous overdose from typical multivitamins alongside the shot, but any more than that (like multiple high-dose supplements) should be avoided