For its nutritional value, soyabean is a food rich in protein (30-50%) and fat (25%), it is used in various forms in food and in human and animal feeds.
For example, compared to its protein value, 1kg of soyabean is 40kg of cassava, 13 litres of milk, 3kg of beef or 60 chicken eggs. Soya beans can replace meat and fish in the diet, given the marked deficiency of the latter in animal protein in developing countries, soya beans maybe a substitute for meat.
Soy protein products can be good substitutes for animal products because, unlike some other beans, soy offers a complete protein profile.
Soy protein products can replace animal-based foods which also have complete proteins but tend to contain more fat, especially saturated fat without requiring major adjustments elsewhere in the diet.