Brain doping: can glucose really intensify concentration?

Brain doping: can glucose really intensify concentration?

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Before important exams: can glucose promote concentration?
Glucose is often recommended on Internet portals when tricky tasks have to be done or important tests are pending. Such preparations should promote concentration. But is that really true?

When there are important exams
Pupils and students in particular like to use dextrose when complicated tasks have to be done or important exams are due. After all, the food supplement is considered a so-called "brain food", as doping for the brain. But is there really anything in the myth of concentration-promoting dextrose? The answer to this is not very clear.

Does glucose actually promote concentration?
Some people who struggle with fatigue, stress or difficulty concentrating at work, at university or at school often resort to glucose. This is seen as food for the brain and is said to provide energy and promote concentration.

But is that really true? Yes and no. Dietitian Susanne Kupczyk from the Interdisciplinary Metabolism Center at the Charité - Universitätsmedizin Berlin explains in a message from the dpa news agency that the assumption is basically "already correct". "But it's more about carbohydrates", which are all broken down into glucose in the body. "The brain then takes its part."

Energy is provided quickly
According to experts, our brain uses 20 percent of the total energy that we metabolize from the food we eat and burns 20 grams of glucose a day. Since glucose cannot be stored in the brain like in the muscles, it depends on a stable blood sugar level.

If this drops, concentration and thinking abilities decrease. If we take simple sugar, for example in the form of chocolate or glucose sweets, this will cause the blood sugar level to skyrocket. Accordingly, energy is provided faster.

Completely unsuitable for children
"But it is also used up quickly and you get to a low performance level," explains Kupczyk. According to the dietitian, it would be better to eat four to six small meals with complex carbohydrates (whole grains, rice, potatoes or noodles) spread over the day during stress - this prevents the low performance.

For some people, glucose is not recommended anyway, other experts say. The consumer advice center wrote on its website: "The property of glucose to get into the blood quickly can be useful for top athletic performance."

But: "It is completely unsuitable for children at play, since it only provides" empty "calories and can trigger cravings due to the rapid processing and the resulting blood sugar fluctuations." (Ad)

Author and source information

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