instructions for b12 injections Treating Severe Vitamin Deficiency How to Give a B12

This includes "prioritizing protein" to preserve muscle mass, eating "small, regular meals even if hunger is low to avoid undernutrition," staying well hydrated, limiting highly processed and sugary foods that offer "little nutritional value," considering supplementation of certain vitamins, and pairing nutrition with resistance training, which is "essential to maintain muscle and metabolic health," she said

Long-term vegans are a special case, because B12 is one nutrient a plant diet cannot reliably supply

Methionine is an essential amino acid involved in fat metabolism and liver function, helping prevent fat accumulation in the liver during caloric restriction

For most healthy adults without a documented B12 deficiency, there is usually no medical benefit to receiving routine B12 injections , and they are unlikely to boost energy in the absence of deficiency

Shmuely H, Shimon I, Gitter LA