According to current statistics, between 50 and 66% of African American women can be classified as being “overweight”. African American women suffer from obesity at an alarmingly disproportionate rate when compared to women of other races.
We know that we live in a culture that equates thinness with beauty, success, and happiness. Thus, the pressure for women to change their weight is enormous, and this is usually where the desire to diet comes in to play. It’s too bad that the first information these women usually run into is ‘magic’ diets and pills promoted by company’s whose major concern is their next dollar, not if someone actually loses weight or not. In fact, by using the typical calorie reduced diets, women are inevitably going to do these over and over again because in the process have trained their bodies to become better at storing fat. This of course leads to more profits for the diet companies.
Typical ‘crash diets’ fight your body’s natural reaction to starvation. Lipoprotein lipase is an enzyme in the body that promotes fat storage and it increases tremendously when someone is not taking in enough food. The lowest energy level that a female who is 90 years old, bedridden, and under 5 feet tall needs, is still approximately 1167 calories per day! Concentration camps during wars have shown us that humans need a minimum of 800-900 calories for sheer survival for any extended period of time. An average meal is around 500-600 calories so if someone skips breakfast, has a diet pop and salad for lunch, and a small dinner you can see how they could run dangerously close to these levels. A person’s metabolism is the complex of chemical and physical processes involved in the maintenance of life, and the rate at which your body uses substances (i.e. burns calories). When a human drastically reduces their food intake, their metabolism lowers, making it harder and harder to lose weight. This makes sense from a survival point of view, because if it continued at the same rate you would literally burn up! This is how people can end up ‘yo-yo’ dieting, because the body just gets better and better at storing energy. Cut calories, metabolism lowers; eat again (even if equal amount eaten before the dieting), and weight goes up. Usually higher than where they started. Of course the psychological damage diets can do is immense, and can take up another whole column, so for now we’ll just look at the physical.
When fuel is scarce, the body first uses up stored sugar in the liver and muscles. This stored sugar is called glycogen. Each glycogen is stored with a molecule of water, and this makes it relatively heavy. When they are metabolized, this is where one might see initial weight loss. During the first five to seven days of inadequate calorie intake, skeletal muscle protein is also broken down for energy. It is lost at approximately 360g (0.8 lb) lean tissue per day, and drops to a rate of 96g per day after those first five to seven days. This is not fat tissue. Adipose (fat) tissue will eventually be used for energy at a much lower rate of 18g per day. The body then shifts back and forth using muscle and fat tissue alternately. The last tissue to go would be the intercostal muscles (the muscle between the ribs) necessary for respiration. The body also adapts to starvation by reducing activity, increasing one’s need for sleep, and lowering body temperature.
If someone really needs to lose weight to reduce their risk of heart disease or diabetes, for example, then how should they do it? Well, the answer is not magic, but it works with the body not against it and involves commitment and education.
DIETING FOR BLACK WOMEN was originally published on blackdoctor.org
