I watched an episode of Cook Yourself Thin the other day, its on Channel 4 and features a chef cooking low fat recipes for someone who had battled with their weight for many years. Needless to say the participant lost weight and said that they felt wonderful, but I couldn’t help wondering what happens next? I am prepared to bet that in her history of dieting she has tried many low fat diets ( impossible not to ) so why will this one be different? My heart sank when the presenter, who was gorgeous and stylish, showed us how to make a lemon drizzle cake with fewer calories than a store-bought one and presented her cake as a way to lose weight. I don’t claim to know all there is to know about nutrition and successful weight loss, but this much I do know – you wont lose weight be eating cake.
My problem with Cook Yourself Thin is that it has one premise – low calorie food. When cooked from scratch this is no bad thing, but my concern is that low fat isnt everything. The background to low fat diets is simple in as much as one gram of fat contains 9 calories whereas one gram of protein contains 7 and carbohydrates only 5. Therefore taking fat out of the diet reduces the calorie intake accordingly. Surely that’s obvious and the right thing to do?
No. Like protein, the body breaks down fat slowly and its conversion to energy is equally slow. Carbohydrates break down easily and quickly which leads to elevated glucose levels. As the cells cant actually absorb much glucose at any one time the excess is stored away, which adds to fat stores. So eating cake leads to weight gain, not because of the calorie content, but simple because of the carbohydrate content. Furthermore, eating low fat food isn’t satisfying and so shortly after eating it, we are hungry and have to battle with cravings and ‘I shouldn’t eat, I am trying to lose weight and I just had a piece of cake’ type thinking. In other words, having low blood glucose levels makes us hungry, that’s quite normal, but asking someone who wants to lose weight to be hungry for a lot of the day relies upon their willpower, and we all know that willpower is limited. Sooner or later we crack, and then its harder still to get back on track again.
Check out How Not To Get Fat (Quadrille, £9.99) to find out the truth behind successful and easy weight management.
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