Share this post on your profile with a comment of your own:

Successfully Shared!

View on my Profile
Does When You Eat Have Long-Term Health Effects?

Medically reviewed by Susan Kerrigan, MD and Marianne Madsen on February 5, 2023

You’ve heard about so many nutrition plans that restrict WHAT you eat. “Don’t eat fats,” “don’t eat carbs,” “restrict the amount of protein you eat,” or even “only eat this cabbage soup.” And, of course, WHAT you eat has an effect on your health. But what if WHEN you eat matters, too?

 

“Time-restricted eating,” or “intermittent fasting” as the practice is also known, has been studied as a way to lose weight. It has also been shown to provide other health benefits, such as lower blood glucose levels. However, a new study shows that whether or not you reap these benefits from timing your eating may depend on your age and gender. 

 

The Study

 

Researchers divided mice into groups based on age and gender. Then they fed them according to a time-restricted eating schedule and observed the groups’ reactions to this type of nutrition format. Although a number of similar studies have been conducted previously on mice, rats, or similar rodents, it was only relatively recently that scientists began to separate for age or gender–earlier studies didn’t make any distinctions based on these categories. 

Title

Next Video >>

Intermittent Fasting: Overview

Intermittent Fasting: Overview

Gender Differences

 

Researchers noted differences between the male and female reactions to time-restricted eating, specifically in the way that nutrients are integrated into the body. One of the benefits of time-restricted eating is to give the body enough time to properly break down and absorb all the nutrients in food during the “fasting” phase. Researchers found that time-restricted eating had a distinct tendency toward increased muscle mass, strength, and endurance in male mice. Male mice also experienced a reduction in cholesterol and lipid levels. Female mice displayed a lesser reaction to the new diet overall. However, they demonstrated a pronounced tendency towards increased protection against metabolic diseases as they aged. 

 

Age Differences

 

A similar study was conducted with groups of mice separated into seniors and young adults. Researchers there found that the older mice produced a relatively minor protein synthesis response after eating at any time when compared with young adults. This lower response may be insufficient to properly process smaller quantities of food, especially in light of the slower metabolism found in older mice. This leads to insufficient muscle protein synthesis and, in turn, muscle atrophy. Time-restricted eating was more effective because it more thoroughly stimulated the digestive system and prompted more effective absorption of food and its conversion into usable particles. 

Title

Next Video >>

Intermittent Fasting: Aging

Intermittent Fasting: Aging

Conclusion

 

These new findings about the effects of intermittent fasting in mice can help humans–including researchers, doctors, and patients–choose strategies that better suit their age and gender. This data could be the basis for adjusting human nutrition regimens–in both timing and content–so that they better suit each patient individually and lead to a healthier populace overall.

Related Articles

Food

A Kidney-Friendly Diet

What goes into a kidney-healthy diet? One of the keys is eating the rainbow - different-colored fruits and veggies each day.

Food

Fruit and Weight Loss

Eating fruit instead of sugary processed foods is a great start and will definitely play a role in your weight-loss journey.

Food

How Small Diet Changes Affect Your Health

Researchers are using the Health Nutritional Index to rank foods and help people make small diet changes to improve their health.

Send this to a friend