Eating Before Sleeping Won’t Elevate Blood Sugar Levels

An observational study was published in the journal BMJ Nutrition, Prevention & Health in which researchers analysed three years of health data from 1,550 healthy middle-aged and older adults in Japan. The study indicates that eating before sleeping didn’t elevate the blood sugar levels of the study subjects.

Eating Before Bedtime Won’t Spike Blood Sugar

Some experts say not eating for two hours before going to bed helps prevent high blood sugar (glucose) levels and related health problems such as diabetes and heart disease. But there is no clear evidence to support this theory.

In search of answers, researchers analyzed three years of health data from more than 1,550 healthy middle-aged and older adults in Japan. Two-thirds were over 65.

Over the three years, there was no significant change in participants’ HbA1c levels — a long-term measure of average blood glucose that is considered a reliable indicator of future health risks.

Weight, blood pressure, blood fats (triglycerides), physical activity levels, smoking and drinking were more strongly associated with changes in HbA1c levels than the amount of time between eating and going to bed, the researchers found.