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Food And Your DietFRUITS AND YOUR DIET To fathom the relationship in food and your diet, we need to see what our diet constitutes of. Our daily diet is based on a fixed calorie intake. For a given number of calories it seems like it shouldn't matter what foods they come from. This is one of the most common mistakes people make when trying to lose fat. They think that by reducing calories they will automatically lose weight. This is true, but not always. And if you lose weight by drastically cutting calories, about 50% weight you lose will be muscle. Here, the types of food you eat is just as important as how many calories you consume. If cutting calories was the answer, then those low-calorie weight loss drinks would work. But they don't. Different food in your diet have different chemical compositions and therefore have different effects inside your body. Of course, all food is fuel, but what type of fuel it is matters. There are two things to be kept in mind. The first being the central role of hormones in determining body composition (amount of muscle and fat) and how to control these hormone levels through diet and exercise. The second being thermogenesis - the thermodynamics of food metabolism in the human body. The bottom line being that different foods have different effects on the body, by virtue of the hormonal responses they elicit and the route of energy metabolism they follow. These concepts are very important and form the theoretical underpinnings of all experiments on the diets of bodybuilders. Some foods in the diet, such as simple sugars, are undesirable because they cause a large and rapid insulin release, and insulin is a potent stimulus for fat storage. Other foods, such as conventional dietary fats are undesirable because they have a low TEF (Thermic Effect of Feeding) and lower the FQ (Food Quotient) of the diet. Remember that all the energy contained in all foods in our diet is converted to ATP (adenosine triphosphate) before it is used as fuel in the body. ATP is the chemical form of energy directly used to power muscle contractions and other biological functions. Any excess energy from such food in our diet will be stored as fat. If a food is inefficiently converted to ATP, then a large portion of the calories contained in the food will be lost as heat, and therefore cannot be stored as fat. Fruits are important in our daily diet but the problem with fruit is that virtually all of the calories it supplies are simple sugars. The most abundant sugar in fruit is fructose although some fruits (oranges and grapes for example) also contain a lot of glucose. Though fructose is very low on the glycemic index (means that it does not elicit a large and rapid insulin release, and so does not promote fat storage). The only reason fruit as food in our diet makes you fat is because of the fructose it contains. In other words, fructose bypasses the control point that decides if a dietary sugar is going to be stored as glycogen or fat. Fructose gets directly converted to fat in the liver, then gets whisked off in the bloodstream to be stored in fat cells. Therefore, fruits when you want to lose weight are not a good food in our diet. |