Diet Myths Revealed #2

Eating less will make you weigh less

Will eating less make you weigh less? The simple answer is NO.

It is a widespread belief that people who are overweight just need to eat less and exercise more. The idea that eating less will make you weigh less is based on so many assumptions. This idea leads to the thought that if you eat 500 fewer calories the body will give up 500 calories of fat, to make up the difference.This is the naivety and over simplified information used in the world of dieting today! The body does not exchange calories for fat.

For example, if an average person has a basal metabolic rate (BMR) requirement for 2000 calories a day (this is the number of calories the person would need if they were ill in bed all day just to survive), and say that they have a requirement for 500 additional calories if they are up and about.

This idea that a reduction of 500 calories will result in the body giving up 500 calories of fat assumes that neither the BMR requirement (2000 calories) nor the additional requirement (500 calories) change. 

However, both BMR and the additional requirement of calories will change. The person who eats less has less energy and they will likely do less additional activity that day, so they won’t go to the gym or walk to the shop,  they will be too tired. 

More importantly the body will reduce its maintenance for the day, it will save cell repair and building bone density for another day as there is not enough nutrition and food available, so it has cut back its functions. Cell repair is important for the maintenance of hair, skin and nails.

Look at it this way, if you stop flying tomorrow or you lose your job, you don’t automatically dip into savings, you cut your spending and the body does exactly the same. 

Eating less will not necessarily mean you will weigh less and in the meantime the health of your body is being damaged.