1. Counting calories is pointless
The number of calories consumed is, of course, important, but it makes a difference whether you eat 500 calories in the form of a steak or 500 calories of chocolate. Not all calories are equal! In one case, it's a healthy meal full of minerals and other nutrients; in the other, it's calories with only apparent energy value in the form of sugar.

2. Vegetable oils are not always healthy
Did you know that ordinary pork lard and homemade margarine can be healthier than refined vegetable oils? It's a misconception to think that all vegetable oils are equally healthy. If they are made with known and healthy methods, then they are; otherwise, they can be just as harmful as animal fats.

3. Can fruit juices be harmful?
Aside from everything that's mixed into store-bought fruit juices, fruit juices themselves can cause quite a few health problems. It's true that juices, even natural ones, have a lot of nutrients, but they also have a lot of fructose. Overdosing on fruit sugar can lead to diabetes, cardiovascular diseases, and it can also make you gain weight.

Fruit juices made from several types of fruit have especially high amounts of fructose. That's why it's healthy to drink a glass of fruit juice in the morning, made from up to three ingredients, and during the day, it's better to drink more water, black coffee, and tea.

4. Not all carbohydrates make you gain weight
The body needs carbohydrates. Basically, we distinguish between simple and complex carbohydrates, which are, of course, less suitable for the body. Simple ones can be found in honey, maple syrup, vegetable juices, marmalades, ice cream, pudding, milk, yogurt, fruit, vegetables... Complex ones are found in the following foods (they usually have a floury taste and a lot of starch): bread, rice, potatoes, cereals, pasta... If you eat simple carbohydrates, you will not gain weight.

5. There is no proof that more meals are healthier
Many personal trainers advocate the idea that you should eat before you get hungry, but there is no real evidence that this helps with weight loss. Furthermore, the debate over whether more meals a day are healthier has been going on for a long time, but there is no empirical evidence to confirm it. The fact is that what we eat is more important than the number of meals.

And one more important detail: if you care about your figure, excess weight, and health, no diet will help you if you are not intensely physically active at least 6 to 8 hours per week.