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How much coffee is still healthy and when does it become critical?
Caffeine is not only found in coffee, but also in club mate, energy drinks, cocoa, coca cola and black tea. Caffeine and coffee act as pick-me-ups. But they also continue to promote health - in moderation.
How does coffee work?
Caffeine prevents the development of various forms of cancer, it has an antioxidant and stimulates. Coffee beans also have a preventive effect against Diabetes II and heart diseases.
What do studies say?
A large study of more than 120,000 women and men showed that more than six cups of coffee a day reduced the risk of developing Diabetes Mellitus 2 - 30 percent in women and 50 percent in men. The positive effect also applies to coffee without caffeine. Antioxidants and polyphenols are believed to be responsible.
How much coffee?
According to the German Green Cross, three, four or even more cups of coffee a day are a blessing for the organism. Caffeine coffee provides significant protection against some illnesses. In general, adults do not have to do without coffee unless they are pregnant or have certain diseases.
Does coffee have a negative effect on blood circulation?
According to a “popular wisdom”, coffee has a negative effect on the cardiovascular and blood circulation and metabolism. A 2005 study from the United States gave the all-clear: caffeine coffee does not have a negative effect on pulse rate, blood sugar levels and the amount of insulin.
What does the Food Safety Authority advise?
The European Food Safety Authority (Efsa) advises that adults can easily consume 400 milligrams of caffeine a day, up to 200 milligrams in a single dose - that's about four cups of filter coffee.
What happens if we drink too much coffee?
Well over four cups of coffee a day in healthy adults can cause restlessness, nervousness, and trouble sleeping.
What are the side effects?
Rarely, there are more serious side effects, especially in combination with other factors such as fatigue, drug and alcoholism or infectious diseases such as flu infections. These range from a racing heart to muscle cramps or nausea.
Age and body weight
Age and body weight also play a role. According to the Federal Center for Nutrition, coffee should be reduced especially by pregnant women, nursing mothers and people with cardiovascular problems.
Breastfeeding and pregnant women
Breastfeeding and pregnant women should especially avoid products with a very high caffeine content. These include energy drinks and espresso. (Dr. Utz Anhalt)
Read also on the subject:
- You barely survive a caffeine overdose
- Does coffee lose its effectiveness in higher doses?