That is why low-carbohydrate diets are a dangerous look



Colin Campbell is nobody, but just the best. The much-translated bestseller, The China Study, bears the indecent subtitle: "The most comprehensive nutrition study ever made." The biochemistry professor points out to critics that no one has done more experiments and published scientific articles than he does, and that capacity returns: "Low-carb is the most unhealthy slimming ever invented," Campbell says in his book The Low Carb Fraud .

Romy Dollé, self author of a low carb book, wanted to know. She fed a paleo diet with fat, protein and leafy vegetables for six weeks and consumed only 30 grams of carbohydrates per day. Result: "I had a sensationally clear head all the time." The only drawback: dry eyes. That disappeared when she doubled her ration to 60 grams.

Less easy than expected: meat and salad are ideal for the Paleo diet. Thinkstock

How does the Paleo diet work?

The purpose of the "Stone Time Diet" is to achieve better health through the original diet of unprocessed food. But strictly speaking the term & paleo diet & # 39; wrong, because it is not a short-term diet change to lose weight, but a sustainable lifestyle

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Ketonsäure is the super-petrol for the brain

The clear head comes from the fact that the liver learns to convert fat into ketonic acid – premium gasoline for the brain by no later than three weeks. Responsible for dry eyes is the fact that the body needs carbohydrates to form mucus. Conventional low-carbohydrate diets therefore recommend about 100 grams of carbohydrates or about 20 to a maximum of 30 percent of the calorie requirement.

But the self-experiment of Campbell Dollé is an anecdote, not a science. He relies on a detailed nutrition and health comparison of 100 people in 65 Chinese provinces. His most important suspicion that animal protein causes cancer, he then tested in millions of rats. He gave their high doses of carcinogenic aflatoxin and fed them with 5 or 20% casein (milk protein). Result: a lot of cancer in the 20% group, almost no 5%. Ergo: Animal protein causes cancer.

Campbell & # 39; s opponents beat back. First, rats are rats and not humans. And: laboratory rats are genetically modified, so they can develop cancer quickly, for example. This speeds up and reduces the costs of the experiments. For the first strain used by Campbell, rats that received only 5% casein had no cancer because they died earlier.

Ketogenic diet means a lot of fat, very few carbohydrates. Getty Images

Does ketogenic diet help cancer?

Lots of fat and low carbohydrates: these are the basic principles of the ketogenic diet. And that should help against cancer. The idea is almost 100 years old. Now it is being successfully implemented for the first time in a large-scale Turkish university hospital.

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The maximum fat content was 83%

Secondly, the 95% to 80% of the sugar and starch calories that the rats consume differently have also influenced the outcome. Thirdly, there is a study in which 13 mouse species could determine their eating habits themselves. Only two of them use less fat than carbohydrates. The maximum fat content was 83%.

Campbell swears by the vegetarian Ornish diet with 75% carbohydrates, 10% fat and 15% protein. In a study, 15 people have retained their eating and living habits. Twenty-five made a regime of Ornish diet, stopping tobacco, one hour of relaxation a day, and three hours of exercise a week. Result: after five years, the Ornish group was healthier and slimmer than the control group according to all criteria. The self-experiment of Campbell is more convincing: the now 80-year-old is slim, fit and at least just as idiosyncratic as his much younger critics.

Some things are common among the line: Campbell, Ornish and all low-carb and paleo agents agree that sugar, refined grain products and industrial foods such as bars, sweet drinks or sweetened muesli should be avoided that can be harmful to stress, smoking is deadly and exercise is essential.

Diets with low carbohydrates can offer benefits to those who already suffer from high blood pressure, diabetes or insulin resistance. Low carb can also help with cancer (ask your doctor). In addition, low carb is usually better maintained because fat and protein saturate, while high-carvers often find it difficult to process their hunger attacks.

Little carbohydrates, rich fats and vegetables.

In "Normalos" 50 to 60 percent of the calories comes from carbohydrates. If you want to reduce this percentage to 20% or less, you must replace the missing calories with fat and protein. With protein, the limit is quickly reached with 1.5 grams per kilo of weight. Low cutters therefore usually replace their carbohydrates with fat. Too many herbs, polyunsaturated fats promote inflammation.

So still the saturated fats of palm and coconut oil, milk, egg yolk and meat. People like Campbell believe that saturated fats are bad for the heart. This is considered obsolete today (see left). Campbell further claims that low-carbers do not eat enough vegetables.

Wrong! Firstly, one would z. Eat, for example, three kilos of spinach to get more than 100 grams of carbohydrates. Secondly, starch from vegetables is mainly transported to the large intestine, where it is converted into fat by the bacteria. Low-carb is also high-vegetarian.


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