It’s an unspoken rule to not eat late at night for reasons ranging from the food keeping you up later in the evening to experiencing a stomachache.

The body is on a 24-hour clock known as the circadian rhythm — which serves many functions, including alertness, sleepiness, appetite and body temperature.

The main issue with late night eating is caused by food choices.

“When individuals consume food during the nighttime, it tends to consist more often of processed foods high in carbohydrates and fats rather than carefully planned and balanced meals,” Janese S. Laster, MD, a physician board certified in internal medicine, obesity medicine, gastroenterology and nutrition, told Health.

Here are a few ways late night eating can affect the body:

  • Lowers energy levels
  • Disrupts sleep levels
  • Increases hunger and decreases leptin
  • Increases chances of obesity and diabetes
  • Digestive issues
  • Increase heartburn and acid reflux

“For individuals experiencing bloating or heartburn, it’s advisable to avoid eating within 90 minutes of bedtime to prevent the onset of gastrointestinal symptoms,” said Laster.

Choosing healthier food options could lessen the effects late night eating has on the body — especially if you work the night shift or are a student.

“During the shift, eat high-quality foods such as vegetables, salads, vegetable soups, fruits, wholegrain sandwiches, yogurt, cheese, eggs, nuts and green tea,” according to the CDC. “Eat more frequently when you need to boost your energy.”

About the Author

Keep Reading

Anne Goyette, who has leukemia, is at grave danger if she gets COVID-19, and is eligible for the vaccine booster. Amid HHS Secretary Robert F. Kennedy's tumultuous changes to vaccine policy, Goyette fought in vain for more than a week to get the shot or a prescription from her doctors and nurses at Wellstar Health System.  Finally she heard on social media about a clinic where she could get it and went there.  Georgia is seeing a late summer COVID cases, according to the Department of Public Health.   (Jason Getz / AJC)

Credit: Jason Getz / Jason.Getz@ajc.com

Featured

In this file photo from October 2024, Atlanta Braves outfielder Jorge Soler and teammates react after losing to the San Diego Padres 5-4 in San Diego. The Braves and Soler, who now plays for the Los Angeles Angels, face a lawsuit by a fan injured at a 2021 World Series game at Truist Park in Atlanta. (Jason Getz/AJC)

Credit: Jason.Getz@ajc.com