As well as aiding weight loss, not eating for a day can have other health benefits. Research suggests that occasional 24-hour fasting can improve cardiovascular health . Some evidence from research on animals shows that fasting can help fight certain kinds of cancer or even help preserve memory .

Is fasting for 24 hours beneficial?

Several studies have found that fasting could naturally increase HGH levels. One study in 11 healthy adults showed that fasting for 24 hours significantly increased levels of HGH ( 24 ). Another small study in nine men found that fasting for just two days led to a 5-fold increase in the HGH production rate ( 25 ).

What would happen if I fasted for a day?

Your body will use stored glucose as energy and continue to function as though you'll be eating again soon. After eight hours without eating, your body will begin to use stored fats for energy. Your body will continue to use stored fat to create energy throughout the remainder of your 24-hour fast.