Glycine for Sleep

Getting Better Sleep with Amino Acids

Research by the Ajinomoto Group has shown that glycine, taken before bedtime, helps the body reach deep sleep more quickly. This is why glycine helps you fall asleep and improves sleep quality.

The Amino Acid Glycine Improves the Quality of Sleep

Have you ever slept long enough but still woke up feeling tired? While it is essential to get enough hours of sleep, the quality of your sleep is also important.

Research by the Ajinomoto Group has shown that glycine, taken before bedtime, promotes good quality sleep so that you wake up in the morning feeling refreshed, energized and ready to be active.

Here, we’ll take a look at how the amino acid glycine is connected to better sleep.

What is glycine?

Glycine is one of 20 amino acids synthesized in the human body. It is also found in many foods and is especially abundant in seafood such as scallops and shrimp.

Take Glycine Before Bed and Wake Up in the Morning Refreshed

The Ajinomoto Group conducted a study on people who were unhappy with their daily sleep. 

One group took glycine before bed while the other group received a placebo. The level of their fatigue was measured the next morning. The group that took glycine woke up feeling refreshed the next day and indicated feeling less fatigued than the placebo group.

The level of fatigue when taking glycine

Work More Effectively during the Day!

In another study involving people dissatisfied with their daily sleep, one group of subjects was given glycine while another group received a placebo. The next day, their relative work efficiency and drowsiness were measured.

Study subjects who had taken glycine before sleeping showed less fatigue and drowsiness the next day and were more efficient while working on a computer.

Drowsiness during the day

Glycine Helps You Reach Deep Sleep More Quickly

There are two types of sleep: REM sleep, which is more of a physical sleep, and non-REM sleep, which is more of a mental sleep. The deepest stage of non-REM sleep is called slow-wave sleep (SWS). During this important stage of sleep, the body actively secretes growth hormone to heal muscles and skin. 

In one study, a group of subjects was given glycine before bed while another group was given a placebo. The group that took glycine reached slow-wave sleep more quickly. 

This research shows that taking glycine helps you reach deep sleep more quickly and improves your quality of sleep by stabilizing your sleep rhythms.

The impact of glycine on sleep patterns

Amino Acids Support Physical Growth and Health

Amino acids not only contribute to better quality sleep, they also support physical growth and health. Now, let’s take a closer look at the power of amino acids to preserve the moisture of your skin and hair and to boost immunity.

Amino Acids also help boost immunity.

Immunity and Amino Acids

The Ajinomoto Group contributes to greater wellness for people worldwide, unlocking the power of amino acids to resolve the food and health issues associated with dietary habits and aging.

How amino acids can solve the world’s health and nutrition challenges


Content you may like

Dr. Kikunae Ikeda Discoverer Of the Umami Taste

Umami

Umami—the fifth basic taste, produced by an amino acidDr. Kikunae IkedaDiscoverer of the umami tasteUmami was identified more than a hundred years ago by Dr. ...

What Is Ajinomoto

What is MSG and How is it Made?

What is MSG?A popular seasoning and flavor enhancer, MSG, or monosodium glutamate, is the purest form of umami, the fifth taste. MSG (monosodium glutamate) is ...

Our Commitment to Nutrition and Research

The Ajinomoto Group was built on the principle of “Eat Well, Live Well,” reflecting our founder’s wish to promote well-balanced meals that are full of ...