Patent ID: 7323200

Claim:
A method of softening infant stools, said method comprising: (A) treating a soy protein material with a phytase-containing enzyme and then water washing the enzyme treated material immediately following completion of the enzyme treatment to a phytic acid concentration of less than about 0.3% by weight of the resulting enzyme treated soy protein, (B) preparing an infant formula containing (i) from about 2.0% up to about 5.4% by weight of lipid, (ii) from about 5.4% to about 10.8% by weight of carbohydrate, (iii) from about 0.7% to about 2.4% by weight of the water-washed, phytase-treated soy protein, and (iv) from about 10 mg to about 600 mg of calcium per liter to form a calcium to lipid weight ratio within the formula of from about 0.002 to about 0.020, and then (C) feeding the formula to an infant resulting in a reduced mean rank stool consistency as compared to a control soy formula without water-washed, phytase treated soy.