The word "phytic" refers to a substance called phytate that is found in plants. Phytate is a form of phosphorus that plants use to store energy. Full definition
Grains like wheat and corn are also notorious for eroding teeth as they are highly acidic and they contain a specific type of acid called phytic acid which is notorious for eroding enamel. (supernaturalacnetreatment.com)
Soybeans are listed as having some of the highest levels of phytic acid of all legumes. (westonaprice.org)