Will I feel hungry whilst on the Key2weight weight loss programme?
No, not after the first few days, because you will be in ketosis. Ketosis is a natural process in which the body converts stored fats into energy. During ketosis, the body switches from primarily using glucose for energy (sourced from carbohydrates) to primarily using stored body fat and dietary fat sources for energy. Whilst on a Key2weight weight loss programme, you’ll consume fewer kilocalories than you require, so you’ll have to use energy from your reserves. First, you’ll use up glycogen stored in your liver and large muscles. Once this is depleted, after one to three days, you’ll start to use body fat. When this fat is broken down, the resulting fatty acids are used by your liver to produce ketones. These are a water-soluble form of energy that can be used by most tissues as fuel. Ketones can also pass across the blood-brain barrier to be used by your brain as its primary source of energy when glucose levels are low. Any excess ketones will be excreted in your blood, breath and u
