网传一瓶瘦三斤的咖啡真有用吗？网友：能不能减肥不知道，但喝了确实拉肚子，一喝就窜Is it really useful to lose three pounds of coffee online? Netizen: I don't know if it's possible to lose weight, but after drinking it, I do experience diarrhea, and as soon as I drink it, I run away

（萧内网萧山论坛、科普中国）

Recently, Sam's Milktalk has become popular, with purchase restrictions, out of stock, and price increases on purchasing agents... A new observation on consumption: seemingly ordinary coffee has become Sam's top stream, simply because it is rumored online to help with weight loss, claiming to "lose three pounds with one bottle". Recently, a netizen posted on a local forum in Hangzhou that she bought the last two items from Sam's Club, but several people asked her if she wanted to sell them. Some netizens also posted that the office refrigerator was filled up, which was bought by a colleague who went to Sam's Club early in the morning. Many netizens in the comment section said that they also bought it and don't know if it can help them lose weight, but after drinking it, they do have diarrhea and can run away as soon as they drink it.

Is diarrhea really equivalent to weight loss? The answer is clearly negative. This product is essentially a milk coffee beverage. For people who are lactose intolerant or sensitive to caffeine, drinking it can cause gastrointestinal discomfort and even diarrhea. But this type of diarrhea is an intolerance reaction of the body, which loses water and electrolytes, not fat. Treating diarrhea as weight loss is not only unscientific, but may also cause harm to the body. According to popular science in China, lactose intolerance is a type of food intolerance, in which the body lacks lactase and lactose cannot be fully digested. After entering the intestine, it is fermented by bacteria, resulting in symptoms such as bloating, abdominal pain, and diarrhea. Alcohol intolerance, fructose intolerance, and discomfort caused by certain food additives also belong to the category of food intolerance. If you really want to lose weight, you still need to rely on a reasonable diet and regular exercise.

(Xiao Network Xiaoshan Forum, Science Popularization China)