Why doesn’t my body use fat as an energy source when I’m dieting?
Deprive your body of energy and, yes, you will give up some fat as an energy source. However, as indicated earlier, muscle is metabolically active tissue. This means you NEED a certain amount of food/energy (calories) just to support its existence. This is known as your resting metabolic rate. Fail to bring in enough energy and your body will do the most logical thing by removing the highest calorie consuming tissue (muscle). ? DIETING has a negative effect on thyroid function. Drastically reduce your calories and the thyroid decreases its production of the hormone T3(triiodothyronine). T3 is a big time player in metabolic rate. ? DIETING increases the activity of the enzyme lipoprotein lipase. Lipoprotein lipase becomes more prevalent during extended periods of time without food. This enzyme is anxiously awaiting any food that may come across the lips so it can grab the energy and store it as fat. ? The longer you are on a diet the less effective it becomes for fat loss. The body is e
