Yo yo dieting is dieting like an yo yo, meaning cyclical loss and gain of weight. This type of dieting is like up and down movement of yo-yo. In this type of dieting a person looses weight initially but regains the weight as the dieter is not successful in maintaining the loss for long period of time and ultimately he begins to gain weight.
Effects of Yo Yo Dieting on Metabolism:
According to experts, crash dieting or yo yo dieting slows down the metabolic activity in the body.
Because of slow down of the metabolism in yo yo dieting, it is very difficult for the visceral fat to melt down. Visceral fat is the fat that gets accumulated in the abdominal area. Visceral fat is metabolized by the liver but since the metabolic activity is less the fat metabolized in the form of cholesterol circulates in the blood in high amount. High cholesterol level can thus block the arteries or narrow them increasing the risk of angina and heart disease. Increase in visceral fat also increases risk of type 2 diabetes.
Yo yo dieting also increases the risk of inflammation in the body. This can have its effect on various organs of the body including heart. According to researchers weight cycling increases the risk of hypertension, heart attacks and stroke. In fact it is said that weight cycling or yo yo dieting can make the person sick more than his or her desire to become skinny.