What a mess! Is drinking coffee harmful or beneficial?

What a mess! Is drinking coffee harmful or beneficial? (photo / China Times Electronic Newsletter)

Coffee is one of the three biggest drinks in the world, attracting many enthusiasts, but many experts say it can fight cancer, and some experts say it will hurt the stomach. Who should listen to?

Coffee is the extract of coffee beans, of which there are no less than hundreds of ingredients, the core of which is caffeine, of course. Caffeine is a neurostimulant, and "refreshing" is its basic function, especially caffeine plus glucose, which can promote each other to make the refreshing effect better. however, apart from the refreshing effect, caffeine has any additional "health function". Some studies have shown that For example, drinking a cup of coffee or a caffeinated drink after a meal may reduce dizziness caused by low blood pressure. Older people who drink coffee regularly have a lower incidence of Parkinson's disease. Other studies have found that caffeine may also help reduce gallstones and type 2 diabetes.

Coffee is both harmful and beneficial? (photo / China Times Electronic Newsletter)

In addition to caffeine, coffee contains many other "active ingredients", such as antioxidants, which may contribute to cardiovascular health, but there are also "harmful substances" in coffee, such as diterpenes, which increase the risk of cardiovascular disease. It is simply "double-edged". Similar to cardiovascular health, there is "anti-cancer". Surveys show that three cups of coffee a day may reduce the risk of rectal cancer. But coffee beans also produce acrylamide when roasted, and high doses of acrylamide have been shown to be carcinogenic in animal experiments.

Moderate amount of coffee (Picture / China Times Electronic News)

The "bad performance" of coffee is more than that. if you drink too much coffee every day (for example, more than six cups), it may lead to addiction and decrease sensitivity to coffee, and then drink more. Drinking too much may lead to insomnia, tension, stomach discomfort, nausea, vomiting, heart rate and breathing, headache, tinnitus and other symptoms, especially patients with heart disease, five cups a day to reach the "unsafe" amount. In addition, although coffee may reduce the risk of type 2 diabetes, its effect on blood sugar is more complex, with some studies showing an increase in blood sugar and some showing a decrease, which obviously confuses the public, but scientists only publish the data they have observed. Will not "negotiate before talking", in addition, coffee can also increase calcium loss, if there are symptoms of osteoporosis Daily caffeine intake should not exceed 300 milligrams (equivalent to two or three cups of coffee).

Healthy normal people have the best 3 cups of coffee a day (photo / Zhong Zhong Electronic News)

Caffeine can interact with a variety of drugs, some increase the efficacy, some decrease, so the simplest way is not to drink coffee while taking all kinds of drugs. Coffee has exciting "health function" and worrying "side effects". Most of these findings are epidemiological investigations, but they are not a final conclusion. Combining these positive and negative studies, the more widely accepted view is that For healthy adults, drinking two or three cups of coffee a day, the "benefits" outweigh the "risks", so if you are a healthy normal person, don't be afraid to drink.

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