It is the first membrane-permeable, selective inhibitor of nicotinamide N-methyltransferase (NNMT), developed at the University of Texas in 2017
It is found in a variety of foods such as fish, shellfish, meats, and dairy products
The dose in weekly tirzepatide injections is far below the amounts used in sleep studies, however
Diabetes & Metabolism Journal, 47 (3), 315-324
People who dont produce enough IF can become deficient in vitamin B12, and are good candidates for B12 shots, says Foxx
Whats more, alcohol also prevents nutrients from being fully absorbed by your body and stimulates the growth of intestinal bacteria that use vitamin B12, thus reducing even further the available amounts of this essential vitamin