After weeks spent in the gym and a longer time spent on a healthy diet, you will begin to experience a reduction in weight. Your jeans won’t fit as comfortably as they used to and with time, you may find yourself changing more than a few pieces of clothing in your wardrobe. Weight loss has become a phenomenon across the world. Thousands of books and videos offering guidance on how best to undergo a reduction in weight have been made available to the public. But just how is this process possible and what is the science behind it? We explore the process below.
To understand the process of weight loss, we must first understand what calories are. A calorie is a unit used to measure the amount of energy in different types of food. Calories are highest in fats and lowest in vitamins and minerals. Most of the time, we eat carbohydrates to produce energy. These foods are packed with a high number of calories. Once the body uses the part of these nutrients that it requires, it stores the rest of the sugars as fat for later use. Larger and larger fat reserves result in gaining weight.
To lose weight, we participate in various exercise programs as well take on healthier food choices. Training programs require a lot of energy from our systems. As we do these exercises, our bodies burn sugars within the bloodstream to produce energy. When there are no available sugars in the blood, the body breaks down fats into carbohydrates and releases them into the bloodstream for energy production. Once done consistently, exercise causes our bodies to burn enough fat that we lose weight.
Notably, however, this weight can only be lost when we do not have enough energy for the workouts in the first place. For optimal results, we need to consistently be in a state of low caloric levels, such that the body will have to burn fat for whatever physical activity we undertake. But just how do we do this? That is where dieting comes in. Weight loss is made possible by healthier food choices that result in a low number of calories in our diets. The number of calories within our body at any particular time should be lower than the amount the body needs for its normal functioning. Being in this condition is known as being under a caloric deficit. When we are under this shortfall for long enough, the body is forced to burn more fat, and this results in consistent weight loss. Healthier food choices also ensure we do not regain the weight we lose through exercise and other physical activities.
In a nutshell, weight loss is possible by the breaking down of fats previously stored in our bodies. The fats are used to produce energy. In this way, there are lower fat deposits within us. This causes a reduction in weight.
It should also be noted that the reason why we choose healthier foods for our diets is because of their benefits to our bodies. If we decided to only lower our caloric content and eat the same unhealthy foods, this would lead to us eating ‘empty calories’. This would be counterintuitive to our health and our aims to improve our lifestyles.