This is a diet that consists in alternating fasting periods and feeding periods.
The intermittent fasting routine promises, in theory, weigh loss, as it consists in consuming very few calories certain days and then to normally eat the rest of the time; or intaking calories only during some hours of the day and skipping some meals in the day. The Murcia Health Virtual Library, of the Murcia Health Advisory, explains some of these modalities:
– The 5:2: You eat as always during five days and fast two days, which can be in a row or intermittent. During fasting days, you only drink no calories beverages and calories intake is limited to 500 and 600 calories.
– The 16:8: It proposes a meal cycle during eight hours a day and one fasting cycle during the other 16 hours in a continuous manner.
– The 20:4: It is similar to the above method; you eat during four hours and fast during the other 20 hours.
According to experts from the Mayo Clinic, minor studies have demonstrated that fasting decreases sugar levels in blood, as well as cholesterol levels and blood pressure. However, no sufficient investigations have been made up to date for supporting or demystifying this nutritional regime. Likewise, reducing feeding ranges also reduces the obtaining of vitamins and minerals, and, particularly for sport people, makes it difficult to recover energy in a suitable manner. The recommendation always is to be advised by a specialist before making diet changes.