It's best to stop eating about three hours before going to bed. That allows plenty of time for your body to digest the last food you ate so it won't disrupt your sleep, but leaves a small enough window before sleep that you won't go to bed feeling hungry.
So when exactly should you stop eating at night? Scientists can't agree on a single set time, but the consensus seems to be within three hours before bedtime. So if you go to bed at 11 p.m., don't eat after 8 p.m.
There's no such thing as a set time you should eat dinner.
Someone who wakes up at 5am could be having dinner at 5pm, while someone who goes to sleep at 1am could be having dinner at 10pm–none of it is inherently wrong or unhealthy, according to Farah Fahad, registered dietitian and founder of The Farah Effect.
Recent medical studies have shown that eating between the hours of 12pm-11pm resulted in higher levels of blood glucose, insulin and cholesterol, than eating between the hours of 8am-7pm. So, if your goal is to reduce your body fat or your cholesterol, it may be beneficial to try curbing your late night eating habits.
Your body will not store more fat after eating the same meal at 9:00 pm as opposed to 6:00 pm—the calorie intake is the same. If you overeat, your body will store the extra calories as fat no matter what time you consume them.
Overeating before the bedtime increases the risk of indigestion and heartburn, resulting in restlessness and sleeplessness. Eating late also sends a message to the brain to keep active that further prevents the body from powering down.
Calories consumed at night won't change your metabolism or count more than calories consumed during the day. Weight gain and weight loss comes down to a simple math equation, explains Day. “Too many calories taken in versus not enough expended on any given day, regardless of the time, will lead to weight gain.”
Weight gain
Your body gains weight when you take in more calories than you burn off. This is the case no matter when you eat. Going to sleep directly after you eat means your body doesn't get a chance to burn off those calories. In fact, eating a big meal and then hitting the couch can be just as harmful.
Recent medical studies have shown that eating between the hours of 12pm-11pm resulted in higher levels of blood glucose, insulin and cholesterol, than eating between the hours of 8am-7pm. So, if your goal is to reduce your body fat or your cholesterol, it may be beneficial to try curbing your late night eating habits.
“If you are hungry, you should eat something, regardless of the time of day,” says Aimee Takamura, registered dietitian and director of wellness and sustainability at Restaurant Associates. “The act of eating late at night does not affect metabolism or lead to many of the adverse effects you may have heard of.
Most people are brought up thinking that dinner should be the biggest meal of the day, meaning they opt for a light breakfast and lunch. However, research has found that a smaller dinner and larger lunch could be the key to helping you shift those weight.
Going to bed hungry doesn't just mean less sleep — it may also be bad news for those trying to build muscle. If deprived of nutrients for long enough, your body can start to break down muscle for energy (also called a catabolic state).
Besides the extra calories, eating too close to bedtime can have other health implications such as digestive issues. When sleeping, our digestion naturally slows down as our metabolism enters a resting state. Lying down in bed immediately after eating can lead to symptoms such as indigestion, acid reflux and heartburn.
“On a day you don't eat for 24 hours, you're guaranteed to be losing a third or half a pound of non-water weight that's mostly from body fat,” Pilon told Global News.
New study provides experimental evidence that late eating may increase hunger, obesity risk. Obesity afflicts approximately 42 percent of the U.S. adult population and contributes to the onset of chronic diseases, including diabetes, cancer, and other conditions.
Myth: You Shouldn't Eat After 7 P.M.
“However, there's no magic to the 7 p.m. time,” Dobbins says. “Losing weight is a matter of limiting our calorie intake, and most people tend to eat most of their calories in the evening, at dinner and snacking afterward.
“Eat after 8, and you'll gain weight” has a nice ring to it, but it's not true. It is based on the myth that the body cannot properly metabolize food during sleep. However, the body has intricate systems of metabolizing, storing, and using energy from food.
That being said, while the body doesn't fiendishly stockpile food as fat when the clock strikes 6 p.m., eating at night is linked to weight gain. And limiting late-night eating has been shown to result in weight loss, too.