Intermittent fasting is a popular eating strategy being studied in labs and practiced in kitchens across America. And it’s more than a fad. Restricting your calories or mealtimes may have the potential for many benefits, such as weight loss and reduced risk of various diseases. We don’t have much evidence, however, about intermittent fasting’s effect on the health of older adults, according to Harvard Medical School.
Intermittent fasting restricts when or how much you eat — and sometimes both. There are several approaches.
In alternate-day fasting, you eat normally every other day. On days in between, you eat just 25% of your daily calorie needs, in one meal. So if you consume 1,800 calories on Monday, Wednesday, and Friday, you’d eat a 450-calorie meal (and nothing else) on Tuesday, Thursday, and Saturday.