This eating style also appears to be difficult to stick to, she says. Thirty-eight percent of the alternate-day fasters dropped out, compared with 29 percent of the regular dieters. And about half of the alternate-day group ended up consuming more calories than planned on fasting days and fewer on feast days, so they essentially followed the same plan as the regular dieters.
Drinking green tea regularly may not only boost your fat fighting metabolism, but may also play a key role in weight maintenance and hunger suppression. One study from the Journal of the American College of Nutrition found that in just two months, green tea drinkers lost an average of six pounds more than those who drank plain water. Green tea is also brimming with antioxidants and flavonoids that are good for overall health. Drink freshly brewed tea with no added sugar or cream — bottled store-bought varieties have fewer antioxidants (the concentration decreases the longer tea sits after brewing) and are often pumped full of honey or sugar.
Prolonged very low calorie diets can cause physiological changes that may cause the body to adapt to the calorie restriction and therefore prevent further weight loss.  Intermittent fasting attempts to address this problem by cycling between a low calorie level for a brief time followed by normal eating, which may prevent these adaptations. However, research does not consistently show that intermittent fasting is superior to continuous low calorie diets for weight loss efficiency.
Fasting as a spiritual practice has a long history in many religions. The idea of purification and cleansing as a way to create change may help increase motivation for weight loss, and brief use of a homemade cleanse may help break habits of overeating and reduce the appetite. For a homemade cleanse to be useful as a means to jump-start weight-loss, it's important to follow the cleanse with lifestyle improvements. A healthy, balanced diet and exercise program provide the most effective means to safely achieve your weight-loss goals. Consult your doctor before attempting a cleanse or fast.
Physiologically, calorie restriction has been shown in animals to increase lifespan and improve tolerance to various metabolic stresses in the body.  Although the evidence for caloric restriction in animal studies is strong, there is less convincing evidence in human studies. Proponents of the diet believe that the stress of intermittent fasting causes an immune response that repairs cells and produces positive metabolic changes (reduction in triglycerides, LDL cholesterol, blood pressure, weight, fat mass, blood glucose). [3,5] An understandable concern of this diet is that followers will overeat on non-fasting days to compensate for calories lost during fasting. However, studies have not shown this to be true when compared with other weight loss methods. 
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