Can't lose weight by eating less?

Can't lose weight by eating less?

When it comes to losing weight, the most common recommendation is to eat less and exercise more, which will help you shed the pounds. 

Doctors have been preaching this weight-loss mantra for decades, yet why has obesity continued to rise in the United States?

According to the Centers for Disease Control and Prevention, more than 40% of American adults are deemed obese.

Obesity specialists and researchers now believe that calorie restriction may actually be counterproductive.

Researchers led by Harvard School of Public Health nutrition expert Dr. David Ludwig say the body fights back when people eat less.

To put it another way, cutting out calories slows down metabolism and makes people more hungry.

"Very few people can ignore their hunger and struggle through metabolic challenges to maintain their weight loss," Ludwig told TODAY.

Instead, Ludwig and his colleagues advise a new strategy — what they call the carbohydrate-insulin model. Stop tracking calories and only decrease carbs to control your insulin levels if overeating is not fuelling obesity.

Insulin fertilizes fat cells best. Fat cells accumulate calories when insulin levels are high. No extra calories are in the blood. Ludwig: "We grow ravenous"

Low-carb diets are popular. Most of these diets eliminate bread, grains, and sugar. Protein and healthy fats like avocados and nuts are emphasized.