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What Is the Scientific Basis for Low Carb Diets?

Low-carbohydrate diets like Atkins, the Zone, and South Beach have captivated both new and long-time dieters, most probably because of their dramatic results. Not surprisingly, these weight loss regimens have generated a fair amount of controversy. Many a consumer has probably asked the question, “What is the scientific basis for low carb diets?” Such a question is only normal, and it is in fact even commendable for a person to be concerned about a diet’s legitimacy and not just to be taken in by celebrity endorsements or hype and marketing.

With the explosion in the popularity of the Atkins diet and the like, so too have the critics come out in full force. They decry such diets and insist that any benefits that are realized are only good for the short-term. In the face of such opposition, the need to answer the question, “What is the scientific basis for low carb diets” should be addressed.

According to low carb advocates, healthy weight loss can be achieved and maintained through the reduction in one’s intake of carbohydrates, which are burned by the body as fuel – to give us the energy we need to move everyday. But excessive consumption of carbohydrates, especially simple carbohydrates and sugar, can raise your blood sugar (glucose) levels. This would trigger increased production of insulin, which would in turn make you feel hungry sooner. In addition, glucose or carbohydrates that are not burned immediately by the body for energy are converted to fat, which is stored by the body.

Thus, limiting one’s carb intake and choosing the so-called “good carbs” (or complex carbohydrates) are key to healthy weight loss. By doing so, the body will start burning its fat stores, instead of the carbohydrates that we are accustomed to piling on. Also, if we limit our carbohydrate intake, our bodies will not produce an excessive supply of insulin, which means less fat to convert and store, and fewer hunger pangs.

There have been a number of studies conducted to determine the answer to the question “What is the scientific basis for low carb diets?” They do show that this diet promotes at least short-term weight loss and healthier conditions for the heart. However, more studies are needed to assess the low carb diet’s long-term effects and whether making it a lifetime habit would continue to be beneficial.