The major difference between soy milk and cowâs milk is that one is derived from a plant and the other from an animal.
One cup of unfortified soy milk contains almost 7 grams of protein, 4 grams of carbohydrate, 4½ grams of fat, and no cholesterol. Although soy milk supplies some B vitamins, it isnât a good source of B12, nor does it provide a significant amount of calcium. Since many people substitute soy beverages for cow's milk, manufacturers have offered fortified versions. These varieties may include calcium and vitamins E, B12, and D, among other nutrients. The recommendation is to take in about 25 grams of soy protein per day.
Cowâs milk provides carbohydrates, vitamins, minerals, fats and vitamins. All cow's milk contain 8 grams of protein and 12 grams of carbohydrate per cup. It is a rich source of other nutrients as well. One cup of cowâs milk provides adults with 30 percent of their daily calcium needs and about 50 percent of their vitamin B12 and riboflavin requirements. Often it is fortified with vitamin D to facilitate the absorption of calcium. Vitamin A is usually added to milk as well. Shortly, it is a complete food. So both fortified soya milk and normal cows milk are good and nutritionally balanced. It depends on individual requirement which one to choose. Those with lactose intolerance are allergic to normal milk and hence can have soya milk. Both are good to be consumed.