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Vitamin B12, or cobalamin, is an essential nutrient vital for energy production, nervous system function, and healthy red blood cell formation
Many experts suggest methylcobalamin for better absorption and quicker results, which is great for weekly B12 shots
Parameters reported in animal studies are specific to those study designs and are not validated for human use
Vitamin B12 (cobalamin) plays a key role in: Making healthy red blood cells (helping prevent certain types of anaemia) Supporting nerve function Helping normal energy metabolism Supporting cognitive function and mood (when deficiency is present) Because the body doesnt produce B12, we rely on dietary sources (primarily animal products and fortified foods) and on absorption through the gut
This study below, published in 1967 carried out trials to determine how long cyanocobalamin and hydroxocobalamin B12 injections lasted before excretion in urine but you can see from their summary that it would be unreliable to assume that one size fits all
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