Does drinking coffee have an effect on people's health?

Coffee can be consumed in the right amount according to personal conditions

According to the views of international authorities such as the US Food and Drug Administration, the European Union Food Safety Agency, the Canadian Department of Health, and the Australian and New Zealand Food Standards Agency, coffee can be consumed in moderation. It is suggested that consumers take a small sip when they try for the first time, and reasonably grasp the drinking frequency and consumption according to their own situation.

1. Healthy adults: 3-5 cups a day are appropriate.

According to the recommendations of the US Food and Drug Administration, the European Union Food Safety Agency, Health Canada, Australia and New Zealand Food Standards Agency, it is appropriate for healthy adults to consume no more than 210-400 mg of caffeine (equivalent to about 3-5 cups of coffee) per day.

2, pregnant women: pregnant women are not recommended to drink coffee, if drinking, no more than 2 cups a day.

Although the Canadian Department of Health, the American Society of Obstetrics and Gynecology, the American Association of Obstetricians and Gynaecologists and other organizations believe that a small amount of coffee can be consumed during pregnancy (no more than 150-300 mg caffeine per day, about 2 cups), pregnant women should not be encouraged to drink coffee.

3. Children and adolescents: children and adolescents should control their caffeine intake.

Children and adolescents should control their caffeine intake. Parents can help their children control their intake of coffee, tea and other caffeinated drinks. The American Academy of Pediatrics advises children and teenagers not to drink coffee. The United States Food and Drug Administration, the European Union Food Safety Agency, Health Canada, Australia and New Zealand Food Standards Agency and other agencies believe that children and adolescents' daily caffeine intake does not exceed 2.5-3 mg per kilogram of body weight (about 75-100 mg caffeine for 30-kg children and adolescents) is safe.

Second, common topics of public concern

1. Does coffee cause cancer?

In 2016, the International Agency for Research on Cancer (IARC) conducted a comprehensive analysis of existing research and concluded that there is not enough evidence to show that drinking coffee increases the risk of human cancer. According to a report released by the International Cancer Research Fund (WRCF) in 2017, there is no evidence that drinking coffee causes cancer, while there is some evidence that coffee can reduce the risk of certain cancers, such as breast, endometrial and liver cancer.

Does coffee increase the risk of heart disease and cardiovascular disease in healthy adults?

Institutions such as the American Heart Association, the European College of Cardiology and the Australian National Association of Health and Medical Research believe that healthy adults drinking moderate amounts of coffee (about 1-2 cups of coffee a day) does not increase the risk of heart disease and cardiovascular disease.

But it is important to note that some people who are sensitive to caffeine may experience discomfort such as rapid heartbeat, nausea and dizziness, similar to "tea drunkenness". It is suggested that consumers should adjust the frequency and consumption according to their own situation.

3. Does coffee increase the risk of diabetes?

The Food and Health-Scientific evidence consensus of the Chinese Nutrition Society points out that drinking a moderate amount of coffee (about 3-4 cups a day) may reduce the risk of type 2 diabetes. The International Diabetes Federation, the American Diabetes Association and other organizations believe that people with diabetes can drink coffee in moderation, and pure coffee can be used as part of a healthy diet. When people with diabetes drink coffee, they should pay attention to controlling the intake of added sugar.

Does caffeine increase the risk of osteoporosis?

Healthy adults can drink coffee in moderation, but too much caffeine increases the risk of osteoporosis. Chinese osteoporosis guidelines suggest that drinking a lot of coffee and tea will affect calcium absorption and increase the risk of osteoporosis. The International Osteoporosis Association and the National Osteoporosis Association of the United States believe that it is appropriate to limit coffee intake to less than 3 cups a day.

For patients with osteoporosis, in addition to properly controlling the intake of caffeinated drinks, a balanced diet should be maintained to ensure adequate calcium and vitamin intake, supplemented by moderate exercise and sun exposure.

5. Does coffee affect sleep?

Caffeine has a certain excitatory effect on the central nervous system, so both coffee and tea can be refreshing. There are great individual differences in human response to caffeine. For sensitive people who may affect sleep, it is recommended to control drinking frequency and consumption according to their own conditions.