1, grain and cereals - indispensable
Grain is the main food of the people of human countries. Dietary 60% to 70% of the calories, 70% of the carbohydrates, about 50% of the protein, as well as B vitamins and inorganic salts are supplied by grain. Millet, corn also contains carotene, cereal germ, grain skin contains vitamin E.
2, beans and legumes - health guarantee
Legumes are China's specialties, beans, including soybeans, fava beans, peas, mung beans, black beans, and many other varieties of soybeans, and soybeans have the highest nutritional value. Beans are rich in protein, about 20% to 40%, the amino acid composition of its proteins and animal proteins are similar, is a high-quality complete protein.
3, livestock and offal - the main source of protein and iron
Livestock refers to pigs, cows, sheep, horses, donkeys, dogs, etc., most people eat pork-based. The protein content of livestock meat is about 10% to 20%, of which the content and utilization of essential amino acids are higher. The fat contained in meat varies from part to part, ranging from 10% to 30% fat, the main component is triglycerides and a small amount of cholesterol, lecithin.
4, aquatic products - high-quality protein
Fish and shrimp, crabs and other aquatic products are high nutritional value of high-quality food, easy to digest and assimilate, is the best supplement for children and the elderly. Fish protein content of about 15% to 20%, of which the essential amino acids and livestock is similar, but the fat content is lower, so the physiological value is higher.
Fish fiber is shorter and easier to digest, the meat is fluffy, the general protein digestibility up to 87% -98%. Fish fat content in 1% to 3% or so, most of the unsaturated fatty acids, often liquid, easily absorbed, fat digestibility up to about 98%.
5, milk and dairy products - eat every day for life
Milk food is rich in nutrients, milk and human milk is similar, the difference between the cow 0 milk protein content is high, human milk lactose content is high. Milk protein content of about 3% to 3.5%. Containing all essential amino acids, the relative content is similar to eggs, high utilization.