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Which is more nutritious, yogurt or milk?
Milk is rich in nutrients and minerals. In addition to calcium, there are phosphorus, iron, zinc, copper, manganese, molybdenum and other contents. The most rare thing is that milk is the best source of calcium for human body, and the ratio of calcium to phosphorus is very suitable, which is beneficial to the absorption of calcium. There are at least 100 complex species, and the main components are water, fat, phospholipids, protein, lactose and inorganic salts. The main chemical components of milk are as follows: moisture: 87.5% fat: 3.5% protein: 3.4% lactose: 4.6% inorganic salt: 0.7%. There are 20 kinds of amino acids that make up human protein, 8 of which are not synthesized by human body. These amino acids are called essential amino acids. If the protein we eat contains all the essential amino acids, this protein is called total protein. Protein in milk is whole protein. Inorganic salts in milk are also called minerals. Milk contains cations such as Ca2+, Mg2+, K+ and Fe3+ and anions such as PO43-, SO42- and Cl-. In addition, there are trace elements I, Cu, Zn, Mn and so on. Calcium in nature exists in a bound state. Only when it is passively absorbed by plants to form bioactive calcium can it be better absorbed and utilized by human body. Milk is rich in active calcium, which is one of the best sources of calcium in human body. 1 l fresh milk contains about1250mg of active calcium, ranking first among many foods, which is about 10 1 times of rice, 75 times of lean beef and10/0 times of lean pork. Good absorption is especially critical for calcium supplementation. Therefore, the saying that "milk can supplement calcium" has its scientific reason. For middle-aged and elderly people, milk also has a great advantage, that is, compared with the high cholesterol of many animal proteins, the cholesterol content in milk is lower (milk:13mg/100g; Lean meat: 77 mg/100 g). It is worth mentioning that some ingredients in milk can also inhibit the amount of cholesterol produced by the liver, so milk can also lower cholesterol. The chemical composition of milk varies with the type, age, feeding mode, milk collection time, sanitary conditions and temperature. Every100g of milk contains about 87g of water, 3. 1 0g of protein, 3. 5g of fat, 6g of carbohydrate, 0. 7g of ash,120mg of calcium, 90mg of phosphorus, 0. 1 mg of iron and 0. 04mg. All three protein contain all essential amino acids. The fat of milk is mainly glycerides of palmitic acid and stearic acid, and also contains a small amount of lower fatty acids such as butyric acid, caproic acid and octanoic acid. In addition, it also contains a small amount of lecithin, cholesterol, pigment and so on. Milk (15 sheets)

Yogurt: 1. Yogurt can promote the secretion of digestive juice and increase gastric acid, thus enhancing people's digestive ability and promoting appetite; 2. Lactic acid in yogurt can not only turn weak acidic substances in the intestine into weak alkaline substances, but also produce antibacterial substances, which have a health care effect on the human body; According to Mexican nutrition experts, drinking yogurt regularly can prevent cancer and anemia, improve psoriasis and relieve malnutrition in children; 4. When making yogurt, some lactic acid bacteria can synthesize vitamin C to increase the content of vitamin C; 5. During pregnancy, yogurt not only provides necessary energy, but also provides vitamins, folic acid and phosphoric acid; It can also inhibit osteoporosis caused by calcium deficiency in female menopause; In old age, eating yogurt every day can correct the nutritional deficiency caused by partial eclipse; 6. Yogurt can inhibit the growth of intestinal spoilage bacteria, and also contains active substances that can inhibit the synthesis of cholesterol reductase in the body, stimulate the body's immune system, mobilize the body's positive factors, and effectively fight cancer. Therefore, regular consumption of yogurt can increase nutrition, prevent and treat arteriosclerosis, coronary heart disease and cancer, and lower cholesterol.

First, it can decompose lactose and protein in milk, which is more easily digested and absorbed by the human body; Second, yogurt can promote the secretion of gastric juice, increase appetite and strengthen digestion; yogurt

Third, lactic acid bacteria can reduce the production of some carcinogens, so they have anti-cancer effects; Fourth, it can inhibit the reproduction of spoilage bacteria in the intestine and weaken the toxins produced by spoilage bacteria in the intestine; Fifth, it has the function of lowering cholesterol, especially suitable for people with hyperlipidemia. Sixthly, generally speaking, patients take or inject a lot of antibiotics to treat diseases or prevent infection, which makes the intestinal flora change greatly, and even some beneficial intestinal bacteria are suppressed or killed, resulting in flora imbalance. Yogurt contains a lot of lactic acid bacteria. Drinking 0.25-0.5 kg per day can maintain the normal intestinal flora balance and adjust the beneficial intestinal flora to a normal level. Therefore, people who have recovered from a serious illness drink more yogurt, which has an irreplaceable role in physical recovery. Therefore, it is also what people who have not recovered from a long illness need most. Yogurt is not only nutritious, but also contains lactic acid bacteria, so it has health care function. These functions are: 1. Maintain the ecological balance of intestinal flora, form a biological barrier, and inhibit harmful bacteria from invading the intestine. 2. Prevent constipation by producing a large number of short-chain fatty acids to promote intestinal peristalsis and a large number of bacteria to grow and change osmotic pressure. 3. Yogurt contains a variety of enzymes to promote digestion and absorption. 4. By inhibiting the growth of saprophytic bacteria in the intestine and the toxins produced by corruption, the liver and brain can be protected from these toxins and aging can be prevented. 5. By inhibiting the growth of saprophytic bacteria and some bacteria in the intestine. So as to inhibit carcinogens produced by these bacteria and achieve the purpose of preventing cancer. 6. Improve human immune function. Lactic acid bacteria can produce some substances that enhance immune function, which can improve human immunity and prevent diseases. At present, some manufacturers in the market sell "milk-containing drinks" under the banner of "yogurt", deliberately confusing these two different product concepts. Some manufacturers of milk-containing beverages began to play "edge ball" on product names, and marked vague product names such as "yogurt", "yogurt" and "yogurt" in big letters on product packaging. If you look closely, you will find that there are several other key small words beside them-"milk drink", "drink" and "drink". It is understood that "yogurt" and "milk-containing beverage" are two different concepts. As far as ingredients are concerned, "yogurt" is fermented from pure milk and belongs to the category of pure milk. Its protein content is more than or equal to 2.9%, and its protein content is more than or equal to 2.3%. Milk beverage only contains 1/3 fresh milk and fruit yogurt.

Mix with water, sweeten and fruity agent. Therefore, the content of protein is less than 1%, and its nutritional value is different from that of yogurt, so it can't be used to replace milk or yogurt at all. There are two kinds of milk-containing drinks: blended drinks with protein content not less than 1.0% and fermented drinks with protein content not less than 0.7%, which are different from real yogurt or milk. According to the protein content on the packaging label, they can be distinguished as yogurt or milk. In the fourth quarter of 200/kloc-0, Guangzhou Municipal Bureau of Quality and Technical Supervision conducted a spot check on 15 kinds of yogurt products produced by various enterprises, and only two kinds of yogurt were genuine: "Fengxing" brand 150g/ cup partially skimmed yogurt produced by Guangzhou Dairy Company, and "Danone" brand 150g/ cup whole yogurt produced by Guangzhou Dairy Company. The protein content of the remaining 13 portion is only about 1%, which can't meet the minimum requirement of protein content of yogurt, and the nutritional effect of yogurt can't be achieved after drinking, so it can only be called "milk-containing beverage" or "lactic acid bacteria beverage". Most of the sugar contained in milk is lactose. However, due to the lack of lactase in the digestive juice of some adults, the digestion, absorption and utilization of lactose are affected, resulting in stomach discomfort and even diarrhea after drinking milk, which is called "lactose intolerance". This is why many people don't drink milk. At this time, you can choose yogurt instead of milk, and don't worry about lactose. Yogurt contains lactic acid bacteria; Lactose in milk can be converted into lactic acid by lactic acid bacteria fermentation, and lactose intolerant people will not have diarrhea symptoms when drinking yogurt, which just solves the problems that some people may have when drinking milk. But it is worth noting that many yogurt drinks (not yogurt) are made of milk, water and sour agents. Such products may also contain lactic acid, which may also cause "lactose intolerance" symptoms. 1, arteriosclerosis and hypertension Some nutritionists have found that yogurt contains a "milk factor", which can lower the serum cholesterol in the human body. Calcium lactate in yogurt is easily absorbed by human body. Some people have done experiments, drinking 720 grams of yogurt every day can significantly reduce serum cholesterol after one week. 2. Lactobacillus bifidus in the yogurt of cancer patients produces acetic acid, lactic acid and formic acid in the fermentation process, which can inhibit nitrate-reducing bacteria, block the formation of nitrosamines, and play a role in preventing cancer. Some countries with developed dairy industry in Europe believe that "a cup of yogurt a day keeps women from worrying about breast cancer". 3. Lactic acid bacteria in yoghourt of the elderly and infirm can decompose lactose in milk to form lactic acid, make intestines acidic, inhibit spoilage bacteria that grow and reproduce in neutral or alkaline environment, and also synthesize nutrients such as vitamin B, folic acid and vitamin E, which are rich in protein and vitamin A, which is very beneficial to the elderly and infirm. 4. Antibiotic users control pathogenic bacteria while inhibiting non-pathogenic bacteria, which may lead to loss of appetite, nausea and vomiting, dizziness and yogurt covered with fruits.

By analogy, it will lead to another infectious disease. Yogurt contains active Mycobacterium longum, which can restore the imbalance of gastrointestinal flora. 5. The yogurt of patients with osteoporosis contains calcium lactate which is easily absorbed by people. This will increase patients' calcium, which is beneficial to the prevention and treatment of osteoporosis. In order to identify varieties, there are many kinds of "milk yogurt" on the market, which are made of milk or milk powder, sugar, lactic acid or citric acid, malic acid, spices and preservatives. They do not have the health care function of yogurt, so they should be carefully identified when buying.