Does it matter when you eat dinner? Earlier in the day — and within a 10 hour window — may help boost metabolism and fight obesity

137 firefighters were encouraged to follow a Mediterranean diet and used an app to track their diet for three months. Half ate meals within a 10-hour window, the other half within a 14-hour window. Credit: SanjaKz via Getty Images
137 firefighters were encouraged to follow a Mediterranean diet and used an app to track their diet for three months. Half ate meals within a 10-hour window, the other half within a 14-hour window. Credit: SanjaKz via Getty Images

A reason to eat earlier in the day? Participants who ate meals four hours later in the day were more hungry, burned calories at a slower rate and had body changes that promoted fat growth, according to a study from researchers at Brigham and Women’s Hospital. The research was published [recently in the peer-reviewed journal Cell Metabolism.

Late eating more than doubled the likelihood of being hungry, researchers said. When study participants ate later in the day, they had lower levels of the hormone leptin, which is present when we feel full, researchers said.

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Your overall meal schedule – and how close together meals are – might be worth a look, too, that study suggests.

That’s because researchers found that firefighters who ate all of their meals within a 10-hour window significantly decreased levels of bad cholesterol, improved mental health, and reduced alcohol intake by about three drinks a week.

Subjects in the study who had elevated blood sugar and blood pressure levels saw significant improvements, too, they said.

There are some limitations. “Those with Type 1 or Type 2 diabetes, expecting mothers, and people taking prescription medications should consult with their physicians before starting any dietary changes, including time-restricted eating,” [researcher Satchidananda] Panda said.

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