Diet for low carbs: carbohydrates worse than the calories?

And if the calorie as sworn enemy of the silhouette was a myth? If the real villains in the fight against overweight were more carbs? It is revealed that a recent U.S. study, reported by Slate.fr.
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When talking about diet, the first enemy pointed is the calorie. This is what we must check first. The equation  hight carbs diet   hight carbs diet   hight carbs diet   hight carbs diet 
to be solved is if we consume enough calories for our energy expenditure of the day or if we consume too much, which contributes to fat storage and thus obesity.
Dr. Ludwig, a professor at Harvard, has published the results of his study in which calories have nothing to do with the making or significant weight loss. He accuses carbohydrates.

To achieve these results, 21 obese people have been semi-diet until they lost 15% of their weight. Then they followed three different diets for a month each: the first was low in fat and high in carbohydrates (whole grains, fruits and vegetables), the second had a low glycemic index and low carbohydrates are slow to digest ( beans), the latter was very low in carbohydrates and high in protein (Atkins diet).

Subjects who followed the very low carbohydrate diet spent twice as many calories per day than the low fat diet. When followed this diet low in fat, they had to add a quarter of an hour of physical activity every day to spend so much energy they did effortlessly during very low carbohydrate diet. low carbs recipes  low carbs recipes 
In conclusion, we eat more carbohydrates, the harder it is to stay slim. These results contradict the advice of nutritionists and dieticians or by the government, which encourage them to eat less fat but more carbohydrates (even if it is whole grains, fruits and vegetables).

The study is of course controversial. Dr. Ludwig wants meanwhile repeat the experiment with more subjects and a longer term.