Five days in which you eat normally, while paying attention to the quality of the food, and two days, Saturday and Sunday, in which you consume up to 800 calories a day: this is the new version of the famous 5: 2 diet by Dr. Michael Mosley, the Mediterranean 5: 2 diet.
In the classic version , you eat normally for 5 days and eat from 550 to 650 calories (the first for women, the second for men) on two NON-consecutive days (for example on Wednesdays and Sundays). On the other hand, in the new Mediterranean 5: 2 diet, the calories on the restriction days rise to 800 , but on close days, which the doctor recommends to do on Saturdays and Sundays. Reason?

Saturday and Sunday are the days when people tend to eat the most. If we keep a close eye on those days there, weight loss is assured. Here’s how Dr. Mosley’s Mediterranean version of the 5: 2 diet works.

THE NEW DIET 5: 2 MEDITERRANEAN VERSION
On non-diet days (from Monday to Friday), the foods allowed are:
– pasta and brown rice or potatoes or wholemeal bread, vegetables, olive oil, olives, fresh or dried legumes, fruit , whole Greek yogurt instead of cheeses, lean meat and fresh fish at least 3 times a week. Limit snacks to a little dark chocolate or a handful of almonds (i.e. about ten). Avoid beer and alcohol except a glass of red wine. Avoid sweets and sugar, sugary drinks.
On the diet days (Saturday and Sunday) this type of scheme is followed:
Breakfast: a 150/170 gr skimmed Greek yogurt with 150 gr of sour fruit (kiwi, red fruits, plums), a teaspoon of honey and cinnamon. As an alternative to yogurt, two eggs in an omelette.
Snack : 10 almonds or 15 pistachios.
Lunch: 50 grams of ham or bresaola or alternatively a large box of natural tuna. Salad or vegetables such as peppers, courgettes, mushrooms, in doses of 200 gr, with a level teaspoon of oil and lemon juice.
Snack : 100 g of low-sugar fruit
Dinner : 200 g of grilled vegetables with 70 g of boiled legumes of your choice, 5 olives, lemon juice or balsamic vinegar.
The important thing is to take 800 calories in all for Saturday and Sunday. 

Here is for example a menu suggested by Dr. Mosley.
Breakfast: Greek yogurt with strawberries or blueberries and honey, plus unsweetened coffee or tea.
100 grams of skimmed Greek yogurt or 50 grams of whole Greek yogurt, 200 grams of strawberries, a teaspoon of honey, a pinch of tahini or a level teaspoon of unsweetened cocoa, a teaspoon of sliced ​​almonds or chopped pistachios (176 calories) .
Lunch: Grilled chicken or turkey with salad and chickpea hummus: 80 g of defatted chicken or turkey, grated red cabbage and seasoned with lemon juice and a level teaspoon of oil, 50 g of hummus or 65 g of boiled chickpeas or beans to add to the salad (286 calories).
Dinner:  single-portion aubergine lasagna with 100 g of very thinly sliced ​​aubergine, cooked and chopped frozen spinach with 50 g of lean cow’s milk ricotta, salt and pepper, 20 g of mozzarella, 100 g of tomato sauce, garlic, basil, two drops of oil. Make a lasagna with the aubergine, the spinach and ricotta cream and the tomato seasoned with garlic, basil, 2 drops of oil, salt and pepper. Bake at 180 degrees for about 15 minutes, add the chopped mozzarella on top and another tablespoon of sauce, return to the oven and cook for another 8 minutes (275 calories).
Snacks: 150 g of red fruits in all or 50 g of red fruits and 10 pistachios.
(photo from:  http://www.dailymail.co.uk/news/article-5641835/The-diet-helped-millions-lose-weight-easily-quickly.html )