| http://www.w3.org/ns/prov#value | - That???s why it is important for vegetarians to eat combinations that complement each other, such as rice and beans, peanut butter and bread, tofu and brown rice.We know from laboratory studies and from the horrible ???natural experiments??? of war and famine that adults need per day about 8 grams of protein for every 20 pounds of weight, or about 50 grams (about 1.8 ounces) for an adult woman and
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