https://www.healthline.com/nutrition/the-5-2-diet-guide https://www.healthline.com/nutrition/the-5-2-diet-guide FTA: It’s called the 5:2 diet because five days

https://www.healthline.com/nutrition/the-5-2-diet-guide https://www.healthline.com/nutrition/the-5-2-diet-guide FTA: It’s called the 5:2 diet because five days of the week are normal eating days, while the other two restrict calories to 500–600 per day.