Phytic acid

International Numbering System (INS) for Food Additives: 391
Food additives Europe numbers: E391 

Phytic acid, also known as myo-inositol hexaphosphate (IP6), is a naturally occurring substance found in plant seeds, especially in whole grains, legumes, nuts, and seeds. It has a complex relationship with human health, acting as both a beneficial nutrient and a potential inhibitor of mineral absorption.

Here's a breakdown of phytic acid's key aspects:

Function:

• Primary storage of phosphorus: In plants, phytic acid acts as the main storage form of phosphorus, a vital mineral for plant growth and development.

Potential health benefits:

• Antioxidant properties: Phytic acid may function as an antioxidant, helping to protect cells from damage caused by free radicals.
• Reduced cancer risk: Some studies suggest phytic acid might play a role in lowering the risk of certain cancers, but more research is needed.
• Improved gut health: Phytic acid may act as a prebiotic, potentially promoting the growth of beneficial gut bacteria.

Potential downsides:

• Mineral absorption inhibition: Phytic acid can bind to minerals like iron, zinc, and calcium in the digestive tract, reducing their absorption by the body. This can be a concern for individuals at risk of mineral deficiencies, especially if they consume large amounts of phytic acid-rich foods.

Important points to remember:

• The impact of phytic acid on mineral absorption depends on various factors, including dietary intake, gut health, and the presence of other dietary components like vitamin C, which can enhance mineral absorption.
• For most healthy individuals consuming a balanced diet, phytic acid's potential benefits likely outweigh the downsides.
• Soaking, sprouting, and fermenting grains, legumes, nuts, and seeds can help reduce phytic acid content and improve mineral bioavailability.