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& lt bullet-proof coffee "lose weight?" Never believe it! Be careful not to lose your life ~ >

Bulletproof coffee is a popular way to lose weight recently. The advertisement says that as long as coconut oil and cream are added to the freshly brewed coffee instead of sugar (carbohydrate), the body can only burn fat without sugar, because oil is the slowest to digest among nutrients, so drinking bullet-proof coffee will make people feel full and eat less at noon, which will have the effect of losing weight. This principle of losing weight comes from ketogenic diet, which claims to be not only able to lose weight, but also helpful for anti-cancer, and can even be used as an energy supplement formula for athletes. Is bulletproof coffee really so magical?

What is bulletproof coffee?

Bulletproof coffee was developed by Dave Asprey, an engineer in Silicon Valley, and originated from buttered tea consumed by Tibetan residents. The preparation method is very simple. Add a spoonful of cream and a spoonful of coconut oil to 240cc black coffee. It tastes like a latte, but it's a little greasy. Because it looks invulnerable, it is named "bulletproof coffee".

Divya Spree published a book, Bulletproof Diet, which advocated ketogenic diet and emphasized that she drank two glasses of food on an empty stomach every morning? Don't eat coffee, wait until noon to eat a small amount of protein, a lot of vegetables and healthy fat, eat a small amount of food for dinner according to the same principle, and don't eat after 8 o'clock. As a result, 100 Jin of meat was successfully shed, which made many beauty lovers eager to lose weight.

Ketogenic diet was originally used to treat epilepsy in children.

In fact, ketogenic diet was first used to treat epilepsy in children. Because under normal circumstances, carbohydrates will be converted into glucose after being absorbed by the human body and transported to all parts of the body to supply energy, especially to maintain brain movement. However, if only a small amount of low carbohydrate is ingested in the ketogenic diet, the liver will convert fat into fatty acids and ketone bodies, which will be transported to the brain to replace glucose and become an energy source. When the ketone body content in the blood reaches a certain level, it is ketosis, which can relieve seizures.

Ketogenic diet was popular in 1920s, but after the advent of antiepileptic drugs, the trend of using ketogenic diet to improve children's epilepsy subsided. Until recent years, ketogenic diet has been used as a way to lose weight.

Low-sugar and high-fat ketogenic diet is difficult to maintain weight and blood sugar.

Nutritionists say that ketogenic diet is a means to help 16 hours skip food and enter ketosis. In terms of weight loss effect, it is really effective, but there are pitfalls. Because the principle of ketogenic diet is to minimize sugar intake, fructose including starch and fruit must be avoided as much as possible. In other words, if you want to lose weight through ketogenic diet, you must know the starch content of the food you eat, and you must also know whether the diet is natural and unrefined (for example, whether the cream and coconut oil used in making bulletproof coffee are natural), otherwise you will accidentally consume too much sugar.

In addition, taking bulletproof coffee as an example, long-term drinking may increase the risk of cardiovascular disease. Nutritionists further explained that in general, following the ketogenic diet will reduce the total calorie intake, which will lead to a decrease in insulin secretion, a decrease in triglycerides and an increase in high-density cholesterol HDL (good cholesterol). However, the study found that this practice has a very negative impact on LDL (bad cholesterol). Some experiments have found that a low-sugar diet will increase bad cholesterol, but some will reduce it. If the proportion of sugar intake is increased in the process, there will also be problems of poor weight and blood sugar control. Compared with other methods to lose weight, it is more difficult to maintain weight and blood sugar.

The concept of ketogenic diet is to use high fat and moderate protein (

It is worth noting that a low-sugar diet does not mean that you don't eat carbohydrates at all. On the contrary, a low-sugar and high-fat diet will still recommend the intake of carbohydrates with very little starch content, such as green vegetables and cruciferous vegetables.

Can ketogenic diet fight cancer? Is it also an energy supplement formula for sports enthusiasts?

As for the ketogenic diet circulating on the Internet, nutritionists point out that if you use ketogenic diet to lose weight, the increase of ketone body in the early stage will inhibit appetite and cause slight dehydration, so you lose weight quickly in the early stage, but it is not suitable for patients with liver and kidney diseases, 1 type diabetes and type 2 diabetes, otherwise it may increase the chance of ketoacidosis and cause life-threatening, and long-term use of ketogenic diet may also have the risk of osteoporosis.

In the part of anti-cancer, the principle is that we hope to reduce the supply of glucose through a low-sugar diet, thereby lowering blood sugar and reducing the activity of cancer cells. However, no matter how to limit carbohydrates, the human body will still synthesize a small amount of glucose from fats and amino acids. It is difficult to starve tumor cells through ketogenic diet. In addition, there is no large-scale study to prove that ketogenic diet can be used as a single anti-cancer therapy, so it is not recommended for cancer patients to try it rashly.

As for whether ketogenic diet can improve sports performance, according to the current research, there is no evidence that it is helpful to sports performance, at most, it is the same as in the past. In high-intensity and explosive sports, ketogenic diet may even reduce sports performance. Remind the public not to try it easily in the face of folk remedies circulating in the market. You should consult a doctor and a nutritionist first to find a suitable way to lose weight, so as to make yourself slim and healthy.

Long-term ketogenic diet is prone to ketoacidosis.

In addition, if you lose weight on a ketogenic diet for a long time, you should be careful that your body will produce a large number of ketone bodies, which must be excreted from your kidneys, causing the kidneys to be overloaded. If it is too late to be excreted, ketone bodies will accumulate in your body, leading to increased blood acidity, electrolyte imbalance, massive loss of potassium ions, and ketoacidosis.

Ketoacidosis can lead to dehydration, nausea and vomiting, more serious acidosis, electrolyte imbalance, affecting brain function, even renal failure, coma, and life-threatening. Generally speaking, the "ketogenic diet" should be adopted at most 1 month, not too long, and it must be implemented safely under the advice of doctors and nutritionists.