Soy milk
Nutrition

A cup (243 mL) serving of a generic unsweetened commercial nutrient-fortified brand of soy milk provides 80 calories from 4 g of carbohydrates (including 1 g of sugar), 4 g of fat and 7 g of protein. This processed soy milk contains appreciable levels of vitamin A, B vitamins, and vitamin D in a range of 10 to 45% of the Daily Value, with calcium and magnesium also in significant content.

It has a glycemic index of 34±4. For protein quality, one study gave soya milk a Digestible Indispensable Amino Acid Score (DIAAS) of 78% for infants, 99% for young children, and 117% for older children, adolescents, and adults, with the limiting amino acid for those groups being leucine, lysine, and valine respectively. A DIAAS of 100% or more is considered to be an excellent/high protein quality source.
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