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With NNMT blocked, nicotinamide stays in the cell, NAD+ levels climb, and fat cells start burning more fuel instead of storing it

In animal-model work, NNMT inhibition with 5-Amino-1MQ has been associated with changes in adipose-tissue mass, in NAD+ pool sizes (because NNMT consumes nicotinamide that would otherwise feed the NAD+ salvage pathway), and in methyl-donor dynamics (because NNMT consumes S-adenosylmethionine)

However, certain people with kidney problems may be at a higher risk of toxicity since they may be unable to effectively eliminate vitamin B12 from the body

Metabolism: A faster metabolism may move through the vitamin more quickly

Who is at higher risk of B12 deficiency

Inactive ingredients and excipients in B12 supplements often play a more significant role than the vitamin itself