If you want to weigh less, you’ll notice that encouragement to go on a diet can be found everywhere – TV, magazines, banners, endless adverts for food products. Here’s a reminder of why dieting is only a good idea if you’re intent on eventually weighing more after a short-term loss.
The people who say, “Eat less, exercise more” will tell you diets must work because of the law of thermodynamics. Energy in equals energy out. As a scientist I know the law is true and very useful for engines in a stable state. As a nutrition coach I know that it’s not useful as an approach to weight loss. Your body is not an engine in a stable state, it’s wonderfully responsive and designed to keep you alive in times of food shortage. It will hang onto all the fat it can, but break down lean tissue and shut down your metabolism to eke out the little food it’s getting. Have you ever heard that a pound of fat contains about 3500kCal, so you can lose a pound of fat a week by reducing your calorie intake by 500 kCal a day? No. When you restrict your energy intake you end up with less energy. That doesn’t feel good.
Way back in 1917, an experiment showed that calorie controlled diets have this weight loss / weight gain effect. It isn’t your fault – the diet does it. Later experiments confirmed the result and the diet industry has been cashing in on the cycle ever since. Deprivation will almost always (98%) lead to you weighing more in the long term. Jon Gabriel was on the dieting roller coaster gaining more each time until he reached almost 30st and realised he had try something different. He decided to concentrate on nourishing his body and lost nearly 16st without dieting. You can read his story here. Now he’s one of the world’s nutrition heros. Check out this delicious ‘pizza’.
My next Eat for a Better Life course will start on 22nd June in Cockermouth. If you’ve done with yo-yo dieting, come and join us.
Top tip: Don’t deprive your body, nourish it.
If you want to read more about the way diets affect your metabolism, here’s a piece by Dr Jason Fung.