A 55-degree cup allows you to
Drink hot water anytime, anywhere
Rumor tracking: A variable-temperature water cup "55-degree cup", known as the drinking artifact, has become a hot topic of concern because of its magical function. Whether it is hot water or cold water, just pour it into a cup and shake it, and it can become 55-degree warm water suitable for people to drink. It is said that the water cup is a high-tech product with utility model patent, and its core lies in the function of heating and cooling through phase change materials.
Expert Interpretation: Wu Guangheng, a researcher at the Institute of Physics of the Chinese Academy of Sciences, said that professional tests showed that hot water dropped to 55 degrees and cold water rose to 37 degrees. The manufacturer claims to use the "high-tech" technology of phase change metal, and according to the test report, all the metals in it will not change phase in the temperature range of daily life. Its principle is very simple, there is no high-tech material at all, but the stainless steel layer is filled with salt water, and the hot water conducts heat to the cold water. The so-called high-tech materials are actually ordinary metals.
"Rose salt" contains trace elements.
Natural minerals can detoxify and protect skin.
Rumor tracking: pure natural, crystal structure, detoxification and skin care … On the Internet, "rose salt" once attracted many people’s favor. Merchants claimed that "rose salt" came from Himalaya, Pakistan and other places, containing 84 kinds of trace elements and natural minerals, without adding anti-caking agents, which is more beneficial to health than ordinary salt.
Expert Interpretation: Yan Shichun, president of Jinan Food Industry Association, said that "rose salt" is actually a kind of crude salt, which is pink because it contains more impurities, and it does not have the health care effect claimed by merchants. There is little difference between the sodium content of "rose salt" and refined salt. The sodium content of pure salt is 39.36%, which is not much different from the sodium content of "rose salt" claimed by merchants of 38.78%. In terms of trace elements, although there are many elements such as iron and calcium in "rose salt", these elements can be obtained from daily diet, and the amount of salt people consume every day is very limited, so the trace elements in salt can’t play the role advertised by merchants. The so-called health care and other effects are just publicity gimmicks of businesses. He reminded consumers that "rose salt" should not replace ordinary salt for a long time, and should try to use iodized low sodium salt.
Strawberry pesticide exceeded the standard by 7 times.
Eating too much is easy to cause cancer.
Rumor tracking: In April this year, some media reporters randomly bought 8 strawberry samples from several farmers’ markets and supermarkets in Beijing for testing. The results showed that the pesticide acetochlor in strawberries exceeded the standard, and the highest residue was 0.367 mg kg, which exceeded the standard by more than 7 times. Acetochlor is classified as a class 2B carcinogen, which may cause cancer if it is used in large quantities for a long time.
Expert Interpretation: Yun Wuxin, a master of nutrition and food research, said that acetochlor is one of the most widely used herbicides in China. Compared with American standards, China has stricter regulations on the detection of acetochlor, which can only be detected in brown rice, corn, soybeans, peanuts and rapeseed, and the residue limit is lower. If it is really used in strawberries, it is illegal and should be severely cracked down. However, acetochlor is a kind of pre-bud-blocking herbicide, which is generally used before crops sprout, and there is generally no high residue until strawberries mature. Moreover, acetochlor will kill strawberry seedlings and affect the harvest, and it will not be used in large quantities during planting.
Then, will eating a large number of strawberries with excessive pesticide residues for a long time be toxic and carcinogenic? According to Chinese standards, the daily allowable intake (ADI) of acetochlor is 0.02 mg/kg body weight. In the report, the highest content of acetochlor detected in strawberries is 0.367 mg/kg. If this reference value is followed, an adult weighing 50 kg will have to eat more than 2.72 kg of this strawberry every day to exceed the range. Even in Europe with stricter requirements (the European Union does not allow the use of acetochlor), the European Food Safety Agency (EFSA) estimates that the ADI of acetochlor is 0.0036 mg/kg body weight, and an adult weighing 50 kg will eat 490 grams of strawberries every day to exceed this range. The cultivation of strawberries is also limited by seasons. It is unrealistic for most people to eat so many strawberries every day.
DIY fruit ferment
Can help you detoxify and lose weight
Rumor tracking: Recently, many online posts titled "Homemade Fruit Enzymes Can Detoxify and Lose Weight" have been reprinted in large numbers on the Internet. According to the instructions in the net post, you can cut seven or eight kinds of fruits casually, add water and a lot of sugar, and seal and ferment for weeks or even months to get a bottle of so-called "enzyme stock solution".
Expert Interpretation: Lv Wanyong, a senior nutritionist in China, pointed out that the essence of enzymes is actually enzymes. The enzyme is protein, which will denature or even decompose under the action of protease in gastric acid and digestive juice after oral administration, thus losing its biological activity. The method of self-made fruit enzyme is essentially a natural fermentation. However, the content of enzyme in the whole fermentation broth is very low, which can not reach the effective amount, and other components in "fruit enzyme", such as lactic acid and alcohol, as the main fermentation products, can not reach the effect of "fruit enzyme".
Eating’ fruit enzyme’ may also cause certain harm to health. A large amount of sugar needs to be added when making homemade enzymes, which increases the sugar intake. In addition, in nature, the microbial composition on the surface of fruit is very diverse, except for yeast or lactic acid bacteria needed for fermentation, there are other microorganisms that may be harmful. A little carelessness in the production process makes the mixed bacteria grow rapidly in the fermentation process, so the "fruit enzyme" produced in this way will not only not be healthy, but will pose a threat to health.
Rootless bean sprouts are easy to cause precocious puberty in children.
Rumor tracking: Rootless bean sprouts refer to the rootless and tender bean sprouts produced by adding "rootless water" when bean sprouts are cultivated. The "rootless bean sprout essence" used by bean sprout producers is a hormone pesticide that can make bean sprout cells divide rapidly, and it has the same carcinogenic and teratogenic effects on human body as nitrogen fertilizer. Even if the intake of hormone drugs for human use is excessive, it will do some harm to the human body, such as precocious development of children, physiological changes of women, osteoporosis of the elderly and so on.
Expert Interpretation: Experts pointed out that rootless bean sprouts are not only nontoxic, but also contain essential trace elements for human body. The Anti-Cancer Institute in Texas, USA and food experts in Sweden also found that bean sprouts can reduce gastric cancer, esophageal cancer, lung cancer, skin cancer and bladder cancer. B12 in bean sprouts is 10 times higher than the original bean seeds, which is of great benefit to human nerves and liver. The scientific discovery and certification of these experts are very convincing.
The so-called "poisonous bean sprouts" is to add "rootless water" (that is, 6- benzyl adenine and other substances) to produce rootless and tender bean sprouts. In fact, 6-BA is widely used in agriculture, fruit trees, horticulture and even crops, and has achieved good results in both yield increase and preservation. Moreover, according to China’s regulations, it can be used for the production of pollution-free fruits. The existing evidence shows that 6-BA and other plant growth regulators are safe, and the management measures of relevant departments in China can also prove their safety.
Infant feeding should use "baby water"
Rumor tracking: Not long ago, there appeared all kinds of strange water on the market: moon water, pregnant women’s water, baby water, etc. These waters not only have strange names, but also have ridiculously high prices, because they add more trace elements, which are more nutritious than ordinary water and more suitable for infants and pregnant women to drink.
Expert Interpretation: Yu Liang, a member of Beijing Dietitians Association and one of the top ten national gold medal nutrition lecturers, said that the purpose of drinking water is to supplement water and a small amount of minerals. In fact, as long as it is clean and hygienic ordinary drinking water, it is enough to meet people’s daily needs, and babies are the same. Drinking water does not need to make a fuss about special people. Although pregnant women, nursing mothers, infants, students and other people during pregnancy and childbirth do need more nutrients than ordinary people, such as iron, calcium, zinc, DHA and so on. However, the amount of soluble nutrients in water is saturated, and it is almost impossible to increase the content of nutrients in water through additional addition, not to mention that DHA is a lipid and cannot be dissolved in water at all. In addition, because the intake of minerals mainly depends on food, there is no need to worry about the lack of nutrition caused by pure water with few minerals. Therefore, it is useless to make "baby water" by strengthening minerals with water.
Eat red meat and processed meat.
May cause cancer easily.
Rumor tracking: The International Agency for Research on Cancer under the World Health Organization assessed the carcinogenicity of red meat and processed meat products, and issued a conclusion on October 26th, which listed processed meat products (ham, sausage, jerky and other processed meat products) as the first-class carcinogen, and considered that eating red meat (fresh red meat, that is, the meat of mammals such as cattle, sheep and pigs) may cause cancer, so it was classified as "with high carcinogenicity".
Expert Interpretation: Barry, President of American Meat Industry Association? Carpenter said that this result "is completely unsuitable for human health and belongs to theoretical danger". Cancer is a complex disease that is not caused by a single food, and a balanced diet and a healthy lifestyle are essential to health.
The WHO representative office in China responded to this statement. Regarding the carcinogenic risk of processed meat, it is actually a reaffirmation of the report submitted in 2002. The original intention is not to stop people from eating meat, but to remind people to eat meat reasonably and reduce possible dietary risks. At the same time, it is also said that the processed meat products are classified as first-class carcinogens, which only shows that "there is enough medical evidence and animal experiments to prove that it can cause cancer". In fact, the risk or ability of meat carcinogenesis is very low.
Drinking soybean milk may lead to breast cancer.
Rumor tracking: A 45-year-old woman bought a soymilk machine to grind soymilk by herself, and took soymilk every morning for nearly three years. Later, she was diagnosed with breast cancer in physical examination, and her estrogen level was several times that of ordinary people. The report that drinking soybean milk caused breast cancer caused people’s panic.
Expert Interpretation: Professor Zhang Hua, former director of the Nutrition Department of the 309 Hospital of the People’s Liberation Army, said that the statement that drinking soy milk can cause breast cancer is unfounded and untenable. The so-called phytoestrogen is not a hormone, but two concepts and two substances with estrogen in human body. In fact, this estrogen-like substance exists in most plants, especially in flax seeds, food products, beans and fresh vegetables and fruits. Because people equate phytoestrogen with estrogen, it leads to the strange theory that drinking soybean milk causes cancer. Experts said that most people in Chinese like to drink soy milk or eat soy food, but the probability of women suffering from breast cancer in China is lower than that in Europe, America and other countries. Drinking soy milk or eating soy products will not actually lead to breast cancer. On the contrary, eating soy products is good for the human body.
Bubble tea is prone to intestinal obstruction.
Rumor tracking: In late October, a CT picture of a netizen’s stomach after drinking bubble tea was circulated on the Internet. The picture shows that after drinking bubble tea for half an hour, many undigested white dots still appear in the stomach of netizens. These dots are the "pearls" in milk tea. Because these pearls are all made of plastic, they are easy to cause gastroptosis and even intestinal obstruction if they are not digested.
Expert Interpretation: Ruan Guangfeng, an expert from the Food and Nutrition Information Exchange Center, pointed out that the "pearl" in bubble tea is actually a round product made of starch as the main raw material, and cassava starch is commonly used. In addition, in order to have a good taste and chewiness, some wheat protein and food additives will be used. Wheat protein is a kind of protein. Except for some people who are allergic to wheat, wheat protein will not cause any harm to human body.
All starchy foods will produce dextrin after entering the digestive tract, which is the degradation product of incomplete hydrolysis of starch. Usually, foods containing starch, such as eating bread, are gradually decomposed into dextrin and glucose after entering the digestive tract before being absorbed by the human body. Whether "pearl" can cause intestinal obstruction is related to the gastrointestinal absorption function of consumers and all foods. People with poor gastrointestinal function, such as children and the elderly, drink a lot of bubble tea, which is not only easy to cause poor gastric emptying, but also dangerous to inhale into organs. Therefore, you should chew slowly when eating, especially foods such as pearl powder balls.
Waxing apples may cause cancer.
Rumor tracking: Recently, a video of "Apple Waxing" spread in the circle of friends. In the video, a gloved employee smeared a reddish-brown liquid evenly on the apple, and the color of the apple was "radiant" immediately. This video has caused some people to question, and some netizens even said that eating waxed apples is easy to cause cancer.
Expert Interpretation: Ruan Guangfeng said that waxing is allowed on the surface of fruits in China. According to the Hygienic Standard for the Use of Food Additives, morpholine fatty acid salt (also known as fruit wax) and carnauba wax can be used as coating agents on the surface of fresh fruits. Waxing looks fresher and brighter in order to prevent water loss and insect erosion during apple production and transportation. This kind of wax is a food additive, and it will not be harmful to human body if used reasonably.
But some unscrupulous vendors will use industrial wax to save costs. The composition of industrial wax is complex, and it may contain heavy metals such as lead and mercury, which will bring risks to human health. However, this risk is potential and unknown at present. As for the carcinogenesis of waxed apples, it is completely unfounded and exaggerates the risk. Experts suggest that if you are worried about health problems, you can peel apples and eat them. If you don’t want to peel them, you can clean them reasonably.
Vegetable oil cooking can cause cancer
Rumor tracking: British researchers heated different kinds of cooking oils in the laboratory, and measured the content changes of aldehydes, which are "carcinogenic poisons". They concluded that cooking with vegetable oils such as corn oil or sunflower oil may lead to many diseases, including cancer, and suggested using olive oil, coconut oil, butter and even lard instead of ordinary vegetable oils.
Expert Interpretation: Fan Zhihong, Center for Nutrition and Food Research, China Agricultural University, said that the experimental results of scientists can only show that the oil rich in polyunsaturated fatty acids is not suitable for frying, not a carcinogenic problem.
First of all, the conditions used in the study are quite different from those used in ordinary home cooking. The temperature used in the experiment is 180℃, which is about 50% to 60% hot, and it can only be achieved when a large number of foods are fried at this temperature. Usually, the time for burning oil during cooking is far less than that.
Secondly, for frying oil, China Standard [4] stipulates that the carbonyl value should not exceed 50meq/kg (mg equivalent/kg), which includes the total amount of aldehydes and ketones. It can be considered that there is no obvious adverse effect on health when the content does not exceed this limit. Considering that domestic cooking rarely fries food continuously, there is no need to worry too much. The thermal stability of butter and lard is indeed better, but it is too one-sided to choose only one factor. Frying and excessive intake of saturated fat are unhealthy diets, and reasonable cooking and balanced diet are the most important.