- Every other day fasting
There are several variations of the alternate day fasting plan.
For some people, alternate day fasting involves going completely without solid foods on fasting days, while others may consume up to 500 calories. On fasting days, people often choose to eat as much as they want.
A study by Trusted Source found that alternate fasting contributed to weight loss and heart health in healthy, overweight adults. Researchers found that the 32 participants lost an average of 5.2 kilograms (kg), or just over 11 pounds (lb), over a 12-week period.
Alternate fasting is a fairly extreme form of intermittent fasting and may not be suitable for beginners or people with certain health problems. It can also be difficult to maintain this type of fasting over the long term.