Micronutrient absorption

Micronutrient absorption is not a single molecule or receptor but rather a physiological process involving the uptake of essential vitamins and minerals from the gastrointestinal tract into the bloodstream. This process primarily occurs in the small intestine, where specialized transport proteins, channels, and cellular mechanisms (such as passive diffusion, facilitated diffusion, active transport) mediate the transfer of micronutrients across intestinal epithelial cells[1][2][3]. The efficiency and specificity depend on both nutrient type (e.g., water-soluble vs. fat-soluble vitamins) and transporter availability. Factors such as gut health, presence of competing substances (like phytates or oxalates), enzymatic activity, and microbiome composition can significantly influence how well these nutrients are absorbed[1][2][3]. Because "micronutrient absorption" refers to a complex biological process rather than an individual molecular target (such as a receptor or enzyme), it is not considered a therapeutic target itself but may involve multiple targets such as specific transporters or enzymes involved in nutrient uptake. **Note:** There is something incorrect with this entry—"Micronutrient absorption" is not itself a molecule/receptor/therapeutic target but describes an overall physiological function/process involving many different molecular entities[1][2][3].

Other names

Nutrient absorptionIntestinal micronutrient uptakeAbsorption of vitamins and minerals