Coffee causes cancer? Experts interpret the right and wrong of coffee

When it comes to the ingredients of coffee, most people's first reaction is caffeine. Caffeine can excite the nerves and refresh you. Caffeine is essentially an alkaloid that protects plants from pests and paralyzes them during plant growth. Nowadays, many refreshing drinks (such as sports drinks) and tea contain caffeine. In addition, caffeine can improve exercise ability, which is why it is classified as a stimulant. Coffee also contains antioxidant chlorogenic acid, which is conducive to cardiovascular and cerebrovascular health. But it also contains some harmful substances, which can increase the risk of cardiovascular disease. In addition, there are minerals such as potassium and phosphorus, vitamins, tannic acid and so on. The composition of coffee is very complex, and the role of coffee can not be determined by the role of only one ingredient.

Insufficient evidence of coffee causing cancer

Today you may see that coffee can reduce the incidence of so-and-so cancer, and tomorrow you may see that drinking coffee increases the risk of some kind of cancer. So who should we listen to? Studies have shown that drinking coffee every day can reduce the risk of gallstones, rectal cancer, uterine cancer and so on. Recently, it has also been reported that acrylamide, which is carcinogenic, has been detected in a variety of coffee. This substance has potential neurotoxicity, and large doses can cause genetic mutations and cause cancer. In fact, the right and wrong about coffee is mainly based on scientists' observation of people who drink coffee for a long time, rather than the results of experiments. Therefore, different subjects may have different results, such as age, sex, pregnancy, drinking dose, race, economy, diet, exercise and other factors. There is no definite conclusion on whether to fight cancer or cause cancer.

It is healthier to use milk as a coffee partner.

Coffee with a partner, the taste is strong, many people have been used to this classic match. But if you take a closer look at your partner's composition table, you can see that your partner contains a substance called plant fat or cream, which is the source of the strong taste and texture of coffee. But these substances are actually products of modern food processing, hydrogenated vegetable oils and contain some trans fatty acids. Although some people say that if the labelled trans fatty acid content is 0, it should not make a difference. In fact, according to the relevant regulations, as long as the content of trans fatty acid is less than 0.3%, it can be labeled as 0, which does not mean that it does not contain. There is a famous toxicological saying called dose and toxicity, that is, if you drink a lot of coffee with a partner every day, over time, it will also have a certain impact on the body. We suggest that milk can be used instead of partners, milk is nutritious and can be said to be a real healthy partner.

Don't drink coffee on an empty stomach in the morning

Some people like to have a cup of coffee in the morning in order to be energized throughout the day. But coffee can stimulate the secretion of digestive juices such as gastric acid, and drinking coffee on an empty stomach for a long time will damage the gastric mucosa and may lead to gastric ulcers over time. For people who have excessive gastric acid secretion leading to diseases, such as gastric ulcers, superficial gastritis, erosive esophagitis and other patients, try not to drink coffee.

Caffeine has a diuretic effect, it itself will not hinder the absorption of nutrients, but through the increase of urine, excessive excretion of nutrients out of the body. Normally, when blood flows through the kidneys, most of the minerals are reabsorbed in the renal tubules, avoiding nutrient loss. But when the urine volume is too much, the ability to reabsorb is limited, which will lead to the loss of nutrients, especially calcium. Generally speaking, the level of calcium in the blood is stable, and when the amount of calcium excreted from the urine increases, the blood calcium decreases and the body uses the calcium in the bones. Over time, it will lead to osteoporosis and other problems.