More importantly, many people have underlying issues that block B12 absorption, regardless of what they eat
The patient is injecting a product with a known composition under medical supervision
Hum Reprod 15(12):26592662 Hirche F, Schrder A, Knoth B, Stangl GI, Eder K (2006) Methionine-induced elevation of plasma homocysteine concentration is associated with an increase of plasma cholesterol in adult rats
The antioxidants alpha-lipoic acid and N -acetylcysteine reverse memory impairment and brain oxidative stress in aged SAMP8 mice
Although several laboratory and animal studies suggest potential regenerative effects, there are scant high-quality randomized controlled human trials demonstrating its safety or efficacy
High doses of ascorbyl palmitate (equivalent to 600 mg/kg of free vitamin C) given concurrently with acetaminophen prevented the elevation of serum liver enzymes in mice and reduced acetaminophen-mediated mortality (Jonker 1988)