While B12 injections alone arent directly linked to weight loss, they may effectively boost metabolism and enhance energy levels during dieting or exercise routines
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This is thought to be due to anaemia that can occur as a result of vitamin b12 deficiency
But several factors work against this natural recovery process, including age (collagen production drops roughly 1% per year after age 20), the amount of weight lost (more than 50 pounds creates significantly more laxity), how long the excess weight was carried, sun damage history, smoking, genetics, and the speed at which the weight came off
Orthopaedic Journal of Sports Medicine
B-12 injections are quick and tolerable