Vitamin B12 is an essential nutrient for the body and is needed to protect DNA and RNA, support energy, protect nerve and brain cells, stimulate serotonin production, contribute to red blood cell formation, support immune function, and maintain a positive mood
Second, "cleared from plasma" is not "gone." Metabolites, downstream biomarkers, and receptor-level effects can persist long after the parent compound has fallen below the limit of quantification, which is the single most misunderstood point in this whole topic
Evidence behind common 5-Amino-1MQ benefit claims Claimed outcome Fat-mass changes Evidence level Animal evidence What research currently shows Obese mouse studies reported less body-weight gain, lower fat mass, or smaller fat cells after NNMT inhibition
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Vitamin B12 injections are a common and effective treatment for B12 deficiency