If you're an adult with extra weight or metabolic issues, how much you eat matters way more than when you eat — cutting calories works the same whether you do intermittent fasting or just eat less every day, as long as the total calorie drop is the same.

Intermittent fasting might help people lose a little more weight than cutting calories the usual way, but the difference is so small it could just be due to chance — overall, both methods work about the same for weight loss in people with overweight or obesity.

If you're an adult with extra weight, cutting calories by either fasting some days or eating less every day leads to similar weight loss and health improvements — neither method works much better than the other if you eat the same total amount of food.

Eating a bit less consistently can lead to noticeable weight loss over a short period for people who are overweight or obese.

Eating fewer calories each day seems to make adults feel less hungry and less tired than doing the same amount of calories in an intermittent‑fasting pattern, so it might be easier for some people.

Eating only on certain days or within a short daily window might help people with extra weight lose more body fat than eating the same number of calories every day, but we only have a couple of studies to back this up.