How does the 5:2 diet work?
A recent analysis of many weight loss studies concluded that overall calorie reduction is the most important factor in weight loss, rather than the actual composition of the diet. The 5:2 diet reduces your weekly calorie intake by 25%, while requiring you to diet for only 2 days a week. You eat normally for 5 days and fast on the other 2 days.
The main advantage of the 5:2 diet is that you are not dieting all of the time. With only 2 days of restriction you can achieve a significant reduction in overall calories, whilst being flexible with food choices 5 days a week. Fasting days don’t have to be consecutive, and you can change your 2 fasting days each week to fit in with your schedule and social engagements.