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Vitamin B12 enhances these effects by contributing to the production of red blood cells and improving oxygen delivery throughout the body, which supports endurance and energy expenditure

The fat-metabolizing and energy-boosting properties are not gender-specific

Selective and membrane-permeable small molecule inhibitors of nicotinamide N-methyltransferase reverse high fat diet-induced obesity in mice Each reference was checked against its PubMed record on 2026-07-28: the PMID resolves and the title, journal and year match

Daiichi Sankyo, Inc., headquartered in Basking Ridge, New Jersey, is a member of the Daiichi Sankyo Group

It's worth noting that higher doses may provide a better energy boost and encourage more weight loss in some patients

That is why the wellness marketing of B12 as an all-purpose energy or weight-loss boost is not supported by NHS or NICE guidance