Yogurt more acid the more nutritious? Yogurt thickener how terrible? The surface water yellow yogurt can drink it? ...... You love yogurt, whether these have been plagued by problems. Life monarch invited Associate Professor of Food Science and Nutrition Engineering Institute Fan Zhihong, dairy Key Laboratory of Chinese Agricultural University, China Agricultural University, Dr. Hu Changli, you answer it.
Nutrition articles
1. yogurt and milk compared to what advantage?
A: raw milk yogurt, sugar and lactic acid bacteria. Yogurt is not only saves all the nutrients in milk, and because the fermentation, in which nutrients are more easily digested and absorbed by the body, so it promotes growth in improving the role of nutrition is superior milk.
2. Yogurt is not it also have the effect of calcium?
A: lactic acid bacteria break down the lactose in milk into lactic acid, reducing the lactose content, but retains other nutrients in milk, so there is still the effect of calcium yogurt. In fact, yogurt calcium absorption rate is not only low in milk than because lactic acid can promote the absorption of calcium and other minerals, in addition, there are CPP yogurt and other peptides produced by protein degradation, but also can promote calcium absorb.
3. diarrhea milk, yogurt can do?
A: lactose in milk is milk cause diarrhea "murderer." Yogurt fermentation process, part of the lactose into lactic acid and other organic acids, reducing the "lactose intolerance" lactic acid bacteria itself will generate a lot of "lactase" help the body digest lactose. Therefore, even people who drink milk diarrhea can yogurt.
4. The more acid yogurt, nutrition better?
A: The source of acidity yogurt, lactic acid bacteria use lactose metabolism of lactic acid, which bacteria and fermentation time and other factors related to ferment. Yogurt must make use of Lactobacillus bulgaricus and Streptococcus thermophilus which, if bacilli dominant, acidity will be strong, but it can not explain better the quality of yogurt.
5. The nutritional value of fruit yogurt better?
A: fruit yogurt market, a lot of ingredients from fruit jam added. Jam cooking at high temperatures, has the nutritional value of fresh fruit and not comparable. Even the real fruit, yogurt because the shelf life is 21 days, put three weeks of fruit, nutritional value will be discounted, the fragrance may come from fruit flavors.
Safety articles
6. yogurt thickener harmful it?
A: Most yogurt has a thickener, many varieties, including modified starches, pectin, xanthan gum, edible gelatin, etc., they can not be digested and absorbed by the body, are not soluble dietary fiber, not only non-toxic harmless and will not cause a "sticky blood", but also help delay the postprandial blood glucose, blood lipids increased speed, is conducive to the prevention of chronic diseases of the beneficial ingredients. Thickener security in general are very high, so there are not a lot of food to limit their usage, the amount of yogurt is also the "food additive standards."
7. After the fridge, yogurt appears yellowish surface water, but also to drink?
A: These yellowish water is "whey", the production of cheese, accounting for 80% of the milk protein casein clot formation or freezing, and the rest with a small amount of whey protein will flow out. If the production of yogurt without thickener, after the release of a period of time, will precipitate some of the whey, which can be assured drink yogurt, whey protein powder products and other foods added whey protein, which is from this liquid extraction.
Drink articles
8. How much yogurt drink every day better?
A: Nutrition Society recommends a daily 300 grams of milk, converted at about disposable cups 1 cup plus 1 small box of yogurt (about 100 grams). It recommends that adults do not exceed 400 g yogurt, except pregnant women, nursing mothers or development of young people. In principle, the same amount of milk and yogurt can be replaced, for young people, sooner or later a cup of yogurt, or a morning cup of milk, a cup of yogurt at night is ideal.
9. When the yogurt is better?
A: Any time. Hyperacidity avoid drink before fasting yogurt promote bowel movements, constipation fit, diarrhea is not others can drink before and after meals. But do not come in a very hearty dinner after eating a big bottle of yogurt, because it adds an additional energy intake. To yogurt after dinner, dinner will be reduced, otherwise it will lead to obesity.
10. Yogurt can put the microwave it?
A: If the stomach can not accept drinks, yogurt can be heated in a microwave, but it should be noted that mid-range firepower, about half a minute may be heated to room temperature (25 ). Heating time is too long or too much firepower, in addition to continuing to kill lactic acid bacteria, but also makes yogurt becomes thin, taste worse. Yogurt should be consumed as soon as possible after heating, so as not to place a long time deterioration.
Taboo articles
11. diabetes can do yogurt?
A: Studies have shown that yogurt is good for the prevention of diabetes. People with diabetes can drink half a catty sugar-free yogurt a day, worried lipids can drink low-fat yogurt. Yogurt is rich in calcium, and calcium can regulate the balance of pancreatic intracellular calcium pool of calcium ions, to ensure the normal release of insulin. In addition, a lower glycemic response yogurt, eaten with cereal foods together, can reduce blood sugar mixed reaction to food, which will help control blood sugar.
12. In patients with hypertension and cerebral infarction patients for yogurt it?
A: The domestic and international studies have shown that moderate intake of dairy products in favor of prevention and control of high blood pressure, low-fat dairy products and fermented dairy products in favor of stroke prevention. In fact, yogurt is certainly more than the health effects of milk. Even without live bacteria reach the large intestine, where nutrients are also very useful for the control of blood pressure. Arteriosclerosis, high blood pressure who are suitable for yogurt.
13. The period of administration can not yogurt?
A: The most relevant scholars believe that clothes antibiotics can cause intestinal flora disturbance will reduce the immune system, but also to take yogurt regularly to adjust the balance of flora, protection of human resistance. After the withdrawal, a period of time continue to drink yogurt, can greatly reduce the side effects of antibiotics, to restore the body's normal flora balance.
Take vitamins, minerals and other nutrients Drugs can be yogurt delivery service. Yogurt contains fat, sugar and protein ingredients, nutrients have to protect and promote absorption. It should be noted that other drugs are not available yogurt delivery service, in particular taking medicines containing heavy metals and pharmaceuticals containing an alkaline substance.
Select articles
14. "yogurt", "yoghurt", "wonderful yogurt", "lactic acid bacteria beverage", "yoghurt" and, in the end who is the real yogurt?
A: When you purchase yogurt, we must first pay attention to instructions on the package and choose the protein content 2.3% of the product, the contents were sticky or jelly-like, we can basically conclude that it belongs to the yogurt. While others products, in liquid form, but the content was relatively thin, protein content 1.0%, such products are milk, water, sugar, flavor, sour agents or leaven made, called yoghurt or lactic acid drinks, the can not be called yogurt, no additional benefits on the human body.
Need to be reminded, some yogurt protein and fat content is much higher than regular yogurt, mostly because of the addition of cream and whey protein, the higher the heat, people need to be careful to buy weight control.
15. supermarket foreign imports of long-life yogurt, homemade yogurt than you?
A: The long-life yogurt is certainly sterilized by heating, wherein the lactic acid bacteria certainly have died. In general, the domestic frozen yogurt containing live bacteria are of. Of course, sterilization yogurt also has some nutritional value, but the value of health care will be discounted, comparatively speaking, a lot of yogurt with live bacteria is more recommended.
(Author: Jack red)
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