The one dieethype is not over yet or the next should be: the ketogene diet is currently popular. What is it? And does it make sense if you want to lose weight or be healthier want to live? Ten questions to voedingswetenschapper Trudy Voortman.
What is the ketogene diet actually?
“At the ketogene diet food people extremely low in carbohydrates. A maximum of 50 grams per day. They shun products where carbohydrates. They eat no or as little as possible starchy products and relatively high in fat.”
What is the idea behind it?
“Then you must first know how it works. Carbohydrates are the largest source of energy for our body. If we do not ingest, switch on the body and on the duration on the combustion of fatty acids. In addition, substances are released that ketones are called.”
“That ketones serve as an alternative supply for the brain, because unlike the rest of our body the brain cannot use fatty acids as fuel. When the amount of ketones in the blood exceeds a certain value, we say that the body is “in ketosis” is.”
“Who wants to lose weight especially must eat less than he burns”
Trudy Voortman, Voedingswetenschapper
So, it’s to fat loss?
“Precisely. That is the attraction of the ketogene diet: it is thought that you lose weight. That is often the case. Especially in the beginning. But that applies to any diet. Who want to lose weight especially must eat less than he burns. Whether carbohydrates or fats are.”
You are not a supporter of the ketogene diet?
“No. It is a hype that comes from our desire for a scapegoat. First it was the fat. When was the gluten. Now, are the carbohydrates. But so simple it does not work with food.”
What do you have against?
“The guidelines for good nutrition advice to about forty to seventy percent of your energy from carbohydrates. For an adult woman, this amounts to 200 to 350 grams per day.”
“For you to stick to the 20 to 50 grams of carbohydrates that it ketogene diet prescribes, you need to except potatoes and cereals are also a major part of your daily fruit and vegetables deleted.”
“Therefore you will miss certain vitamins, minerals and fiber. Also: what do you eat for carbohydrates in the place? The ketogene diet recommends high fat products such as cream, butter, bacon, and avocado. No products that are pure and healthy. Certainly not in large quantities.”
In addition to grains and potatoes, should be people who the ketogene diet is also a big part of their daily vegetable and fruit scrap ().
Is there scientific evidence for the positive effects of the diet?
“There is no research on the long-term effects. So it is not clear whether it is healthy for for a longer time ‘in ketosis’ period.”
“Most people hold an extreme diet is not full”
Trudy Voortman, voedingswetenschapper
“There is a proven fact that you are there, especially in the first months of fall. But that is as said the case with any extreme diet. And as that works with extremely diet: most people do not full.”
There is evidence for a positive effect on epilepsy. How about that then?
“Yes, in children with severe epileptic seizures, this diet is sometimes used. But only under the guidance of a specialised dietician. More than half of the children with epilepsy leads the ketogene diet to significantly fewer attacks.”
“Some children come there even from. But the diet is extremely difficult to maintain. Therefore, stop many children there yet again.”
In other diseases such as diabetes it is still also used?
“What in diabetes is much used is a koolhydraatbeperkt diet. Thus, good results can be achieved because people lose weight. Weight loss has a positive influence on the sugar metabolism.”
“Koolhydraatbeperkt is not necessarily the same as ketogenic, which is many times heavier”
Trudy Voortman, voedingswetenschapper
“But koolhydraatbeperkt or ‘lowcarb’ is not necessarily the same as ketogenic. Ketogenic is many times heavier. Understand diabetes, it can be dangerous to be in ketosis. This diet you must also never just do it without the guidance of a dietician.”
And in cancer?
“There is a lot written about it. The idea is that tumors feed on glucose. And that your cells can be ‘starving’ when you have no carbs. That has been demonstrated in mice. Not yet in people.”
What you recommend as a healthy diet?
“It is the well-known story of enough vegetables and fruit, whole grains and good fats in nuts, seeds and oily fish. Eat more vegetable and less processed food.”
“Most important: find a diet that you in the long term can hold, where you really get your lifestyle. That may be fine with less carbs if that’s good for you works.”
How to limit your carbohydrates in a responsible way?
“Delete the unhealthy variants: white bread, cake, candy, soda, but also juice. Eat enough legumes, whole grain products, vegetables and fruit. And do not eat too much. If you want to lose weight, you will less food to eat than you burn.”
Trudy Voortman is as voedingswetenschapper connected to the Erasmus MC in Rotterdam.