Inositol hexakisphosphate (IP6) and lower inositol phosphates (IP6)

Phytic acid, also known as inositol hexakisphosphate (IP6), and its lower phosphorylated derivatives (IP1-IP5) are naturally occurring compounds found in high concentrations in cereal grains, legumes, and oilseeds (PubChem CID 890). In biological systems, these molecules function as essential intracellular messengers involved in signal transduction, vesicle trafficking, and DNA repair (Vucenik & Shamsuddin, 2003). Phytic acid is particularly recognized for its potent antioxidant properties and its ability to chelate multivalent metal ions, which prevents the formation of hydroxyl radicals and inhibits the crystallization of calcium salts in the urine and vasculature (Grases et al., 2007). These properties make it a candidate for the prevention and treatment of kidney stones and cardiovascular calcification. Additionally, IP6 has shown significant anti-cancer activity by modulating cell cycle progression and promoting apoptosis in various tumor models (Bizzarri et al., 2016). Despite these benefits, phytic acid is often labeled an antinutrient because its high affinity for minerals can impair the absorption of essential elements like iron and zinc from the diet (Schlemmer et al., 2009).

Other names

PhytateMyo-inositol hexakisphosphateInositol phosphatesInsP6IP1-IP6Phytic acid

Chelation of multivalent metal ions (such as Ca2+, Fe2+/3+, and Zn2+) to inhibit oxidative stress and pathological calcification; modulation of intracellular signaling pathways including PI3K/Akt and PKC to regulate cell growth, differentiation, and apoptosis.