Velocity Trim Keto Another very important fact is the measurement of the waist circumference, we pass a tape measure around the child's waist (at the height of the navel), so we divide this value (in cm) by the height (in cm); if the result is greater than or equal to 0.5 our child has an accumulation of fat in the abdominal area, where it is more dangerous. Even in the presence of a normal weight, a circumference that is too high is very dangerous and requires nutritional intervention. How to prevent childhood obesity Children and obesity, cure it without diet If the weight of our child is excessive it is important to manage it right away in the correct way.