Carbohydrates are a common topic when discussing diets and nutrition. Many people feel carbs are bad for us and can cause weight gain and other issues with our bodies. Many times diet companies promote following a diet low in carbs because it promotes greater weight loss, which in turn leads consumers to believe that carbs are bad for us. The problem with many of these companies is that they are not providing the most scientific evidence and information to their consumers as they are trying to sell a product and make money! In addition, many of the representatives selling the products do not have a formal education in nutritional sciences, physiology, and/or medicine. This is a very important concept to understand about the supplement and diet industry.
When looking at a carb restricted diet, there is always going to be initial weight loss due to hydration because the glycogen (storage form of carbs) attracts water. When the glycogen stores are depleted, the total body fluid levels decrease, resulting in weight loss. This process is ok for the body short term, however following a carb restricted diet long term can result in a state called ketosis. Ketosis is a state where the body burns its own fats for fuel and also produces ketone bodies. Normally the body burns carbohydrates for fuel and is a main source of energy for our brain, heart, central nervous system and many other organs. Ketones are small carbon fragments that are created by the breakdown of fat. When the body is in ketosis, you may feel less hungry, resulting in a decrease in caloric intake, however ketosis can lead to serious health problems.
Results of ketosis include:
- Kidney Failure: a high protein diet can cause signficant stress on the kidneys, thus putting a person at risk for kidney disease
- High Cholesterol: high protein diets are often high in fats coming from the greater consumption of red meats, whole fat dairy products, and other high fat foods. Many credible studies have linked high cholesterol levels to increased risk for heart disease, stroke, and cancer.
- Osteoporosis & Kidney Stones: when following a high protein diet, the body tends to excrete more calcium through urine, thus putting you at risk for osteoporosis and kidney stones.
- Restrictive diets can always cause issues with lactation, menstrual periods, and hormone balance in the body.
The dangerous metabolic state of ketosis may seem pleasing at the beginning as you think it’s ok to burn some fat off, however that state can be very dangerous to the body long term. There is limited research indicating that the body can stay in this state long term due to the negative side effects. Ketosis can be prevented by eating at least 100 grams of carbohydrates a day. Thus a moderate intake of carbohydrates is the best for our bodies.
The diets that have been proven most effective for weight loss and disease prevention are the DASH (Dietary Approaches to Stop Hypertension) and the TLC (Therapeutic Lifestyle Changes) diets. Both of these diets promote a balanced intake that is high in fruits and vegetables and includes lean proteins, low fat dairy products, and moderate higher fiber carbohydrates. This is what we promote in STRIVE 2 Survive. We are aimed at promoting lifestyle changes through dietary and exercise interventions with a long term result of disease prevention. All of us at Brown Clinic and our STRIVE 2 Survive Team have formal education in the science areas, including anatomy, physiology, biology, biochemistry, pharmacology, & medicine. I, myself have specialized education in nutrition sciences and weight management.
Weight loss isn’t easy. If is was, we wouldn’t have over 50% of Americans struggling with it. Next time you’re approached by someone promoting a product or you consider a low carb diet to help you lose weight faster, think about the science behind this process. It’s very important to check with your doctor, pharmacist, or myself to make sure it’s safe for you and your body. The supplement industry is not regulated by the FDA so many ingredients may interact with your medicines and health conditions.
-Kelsey
