side effects of b12 injections autism Are Vitamin a Game Changer for Children with Autism? Can B-12 injections help autism?

In a similar study, the pivotal role for the IGF-1 in insulin sensitivity has received further support from liver-specific IGF-1 KO mice which exhibited overt insulin resistance and hyperinsulinaemia that was reversed by the administration of IGF-1 [161]

Cell Adhes Commun 7:513523 Kaplan RC, McGinn AP, Pollak MN et al (2007) Association of total insulin-like growth factor-I, insulin-like growth factor binding protein-1 (IGFBP-1), and IGFBP-3 levels with incident coronary events and ischemic stroke

Holotranscobalamin (holoTC, or active b12) Another useful test is the holoTC test (or active-B12 test), which measures the portion of B12 bound to transcobalamin

Patients with severe deficiency may need more frequent injections initially, while those using B12 for wellness optimization may maintain results with monthly treatments

It comes in pills or a nasal spray

doi: 10.1038/nrdp.2017.40, 2