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B12 absorption is regulated through intrinsic factor, which is produced by gastric parietal cells in the stomach, with the B12-intrinsic factor complex being absorbed in the terminal ileum

Also, DEHP, BPAF, DNOP, and BPS are predicted as HIA (points located in BOILED-Egg's yolk, HIA predicts as to be passively absorbed by the gastrointestinal tract.)

Vitamin B12 deficiency occurs when the body lacks enough of the vitamin to produce adequate red blood cells, leading to symptoms such as fatigue, weakness, and neurological issues

And majority of the nano-QSAR models are based on the intrinsic physicochemical properties but ignoring the environmental influence (Puzyn et al., 2011
Knowing the right dosage and how to give IV vitamin B12 helps doctors treat patients better

Heyman, "Directory of U.S
