Too much coffee is unhealthy

Rumors of the negative effects of coffee persist to this day. But what is really true about these statements? Is coffee healthy or unhealthy? On this page we take up some of these points.

Does coffee dehydrate the body?

The assumption that coffee removes water from the body is not correct. According to Antje Dahl from the German Nutrition Society (DGE), this opinion is based on misinterpreted data from earlier studies. "Regular and even consumption of coffee affects the fluid balance solely through the amount of water supplied with the coffee." It is true that caffeine has a short-term diuretic effect, but that the body gets used to the caffeine intake when people drink coffee regularly. Therefore, coffee can confidently be added to the fluid balance. Coffee is one of the most popular non-alcoholic beverages worldwide. In Germany, each person drinks an average of half a liter of coffee a day.

“Coffee doesn't dehydrate the body. Otherwise I would be dust. "(Franz Kafka)

Caffeine: friend or foe?

Caffeine is an alkaloid from the xanthia group and takes between 30 to 45 minutes to get into the bloodstream. The half-life of caffeine in the body differs from person to person and depends on age, body weight, the individual state of health and the genetic makeup of the person. On average, the half-life is about 4 hours. In pregnant women, on the other hand, the breakdown of caffeine slows down drastically and takes almost 20 hours.

In small doses, caffeine has a stimulating effect on the cardiovascular system, increases physical performance and increases the brain's ability to concentrate and store. Caffeine also wakes you up and brightens your mood, which is why the caffeine kick in the morning is the ideal way to start the day for many people. Because of its effect, caffeine is also an ingredient in many drugs that are used to help with heart failure, neuralgia, pain, migraines, asthma and allergies. The caffeine does not trigger a permanently high blood pressure (hypertension), which damages the cardiovascular system. Anyone who suffers from high blood pressure anyway should consume coffee sparingly. The latest studies have also shown that lifelong coffee consumption can reduce the age-related decline in mental performance and the risk of depression.

What influences the caffeine content?

The caffeine content in coffee is heavily dependent on the roasting process and the coffee bean itself. Robusta contains three times more caffeine than Arabica. Robusta contains up to 4.5% caffeine, while Arabica reaches a maximum of 1.7%. Another aspect that makes it unclear how much coffee is good for the body is due to the caffeine content, which is significantly higher in filter coffee than in espresso. In addition, the caffeine content depends on the roast. For example, an espresso from one manufacturer can only contain approx. 50 mg of caffeine and from another supplier it can contain as much as 300 mg.

Another difference lies in the methods of preparation of the coffee, which not only affect the taste. Filtered coffee does not raise the cholesterol level because the ingredients cafestol and kahweol, which can lead to an increase in the "bad" LDL cholesterol, get stuck in the paper filter. So you can see that the whole thing cannot really be generalized.

Solution: Really good coffee!

As a rule of thumb, four cups of coffee a day are not a problem and even have a positive effect on health and concentration. When buying coffee, however, attention should be paid to the quality of the beans and careful roasting of them. Of course, whether coffee is healthy also depends on the amount that is drunk every day. As with everything: in measure, not in mass. Even if coffee is not a liquid thief, as is often assumed, one should not start drinking coffee instead of water - coffee still does not work as a thirst quencher. In addition, too high a dose of caffeine can lead to potassium deficiency and cause muscle problems, fatigue and headaches.

Can you lose weight with coffee?

On the bush radio you hear again and again that coffee is the magic bullet in the fight against unwanted calories. What's wrong with this rumor?

Pro: Coffee stimulates your metabolism

Because of the stimulating effects of caffeine on the metabolism and the central nervous system, coffee is a popular diet hit. Because coffee causes the body to produce more heat and thus use more energy, ergo you burn more fat. That is why a cup of coffee or espresso is also popular after a meal. Believing in the miracle effects of caffeine, many people even use caffeine tablets as a dietary supplement to get closer to their diet goal.

Our conclusion: Coffee doesn't harm your diet plans, but it's also not the magic bullet that you should rely on alone.

Cons: side effects and short-term effects

However, nutritionists advise against using such supplements as a weight loss weapon. The possible side effects, such as excessive sweating or high blood pressure, seem too risky. All of these approaches are intended to be too short-term to have a lasting effect. Our body gets used to the consumption of caffeine and adapts, which means that the desired effect quickly wears off again.

The process of losing weight is far too complex to be reduced to one single food item. Losing weight includes a balanced lifestyle with a healthy diet and sufficient exercise.

Bulletproof: butter + coffee = energy bomb?

Ever heard of the Paleo hype Bulletproof Coffee? This is the mixture of butter and coffee. What sounds unsavory at first, finds numerous followers around the world who swear by the energy bomb. Above all, the filling effect of Bulletproof Coffee should be sufficient as a meal replacement and lead to high weight loss. But here, too, the effect is highly controversial.

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