Is Drinking Green Tea Before Bed a Good Idea?

We discuss the health benefits of drinking green tea before bed, as well as possible side effects.
Romeo Vitelli
Romeo Vitelli
Expert Writer
Received his doctorate in Psychology in 1987, spent fifteen years as a staff psychologist in Millbrook Correctional Centre. In 2003 went into full-time private practice. read more
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Last updated: August 12, 2023
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Green tea comes from the Camellia sinensis plant. Camellia sinensis is an evergreen shrub or small tree in the Theaceae flowering plant family whose leaves and leaf buds are used to make tea. Green tea originated in China. The leaves and leaf buds of Camellia sinensis are steamed and pan-fried before being dried to make green tea.

Yes, drinking green tea before bed is an excellent idea. Drinking green tea before bedtime can assist to boost your metabolism. It also aids in the enhancement of both the quality and duration of sleep.

Green tea is one of the few teas that hasn’t been overly processed. Due to this, it has a high concentration of antioxidants and beneficial polyphenols. There has been a lot of research done on the health benefits of drinking green tea before bed.

Green Tea Nutrition Facts

Green tea is mostly water, it is devoid of the macronutrients found in other foods and beverages.

Brewed, regular green tea
Nutritional value per 100g(3.5oz)
Energy 4kj (0.96 kcal)
Carbohydrates 0 g
Fat 0 g
Protein 0.2 g
Vitamins Quantity %DV
Thiamine (B1) 0.007 mg 1%
Riboflavin (B2) 0.06 mg 5%
Niacin (B3) 0.03 mg 0%
Vitamin B6 0.005 mg 0%
Vitamin C 0.3 mg 0%
Minerals Quantity %DV
Calcium 0 mg 0%
Iron 0.02 mg 0%
Magnesium 1 mg 0%
Manganese 0.18 mg 9%
Potassium 8 mg 0%
Sodium 1 mg 0%
Other constituents Quantity
Water 99.9 g
Caffeine  12 mg


The video below shows the general benefits of drinking green tea for your health.

Health Benefits of Drinking Green Tea Before Bed

1. Helps boosts the Immune system

Green tea can help you strengthen your immune system.

One of the antioxidants present in green tea, polyphenols, can help protect from auto-immune diseases such as rheumatoid arthritis and psoriasis

2. Helps you sleep better

L-theanine, an amino acid found in green tea, provides relaxing and anti-anxiety qualities. L-theanine is a natural anxiety reliever that helps you sleep better. If you have sleep issues such as insomnia, drinking green tea before bed may be beneficial. It will also increase the quality of your sleep, without making you feel drowsy or tired like other natural and synthetic sleep aids.

3. Lowers cancer risk

Green tea has been shown in studies to reduce the risk of several cancers: prostate cancer, pancreas cancer, bladder cancer, stomach cancer, breast cancer, colon cancer, and liver cancer. Oxidative damage has been linked to chronic inflammation, which can lead to chronic diseases such as cancer, according to research. Antioxidants can assist in the prevention of oxidative stress. Green tea is high in antioxidants and is a good source of them.

4. Reduces cholesterol levels

Is Drinking Green Tea Before Bed a Good Idea?

Drinking green tea is known to reduce the levels of cholesterol in the blood to an extent.

It may help you maintain a healthy cholesterol level, but it isn’t a cure-all for high cholesterol. It is recommended that you consume a healthy balanced diet, exercise daily, avoid high-cholesterol meals, and drink a warm cup of green tea before going to bed to keep your cholesterol at the ideal level.

5. Improves cardiovascular health

It aids in the reduction of triglycerides, a type of fat found in the bloodstream. A healthy heart depends on a low cholesterol level. According to a study conducted in Japan, consuming at least 5 cups of green tea every day can cut the risk of heart attack or stroke by 15%.

6. Improves oral hygiene

Drinking green tea regularly promotes healthy teeth and gums, according to a Japanese study. Green tea reduces the chances of periodontal disease.

The gums and bones that support your teeth can be affected by periodontal disease, both chronic and inflammatory.

Green tea’s catechins are the primary reason for improved oral health, as green tea triggers your body’s natural inflammatory reaction to germs that cause periodontal disease.

7. Helps to protect the brain and lowers the risk of Alzheimer’s disease

Green tea not only benefits your brain and body right away, but it also protects your brain against diseases like Parkinson’s and Alzheimer’s as you become older.

Alzheimer’s disease, a neurodegenerative disease that causes dementia, affects the majority of the elderly. Parkinson’s disease is a neurological disease in which dopamine-producing neurons in the brain die. Green tea’s catechin components may preserve neurons and help you avoid developing these two major neurodegenerative illnesses as you age.

8. Aids weight loss and fat burning

According to a study, drinking green tea before bed can help to speed up your metabolism. And getting enough sleep can help you have a healthy body by improving your overall metabolism. According to one study, this increase in metabolism can be as high as 4%. Green tea contains thermogenic characteristics that boost fat burning significantly more effectively than caffeine alone.

Is Green Tea Best Served Hot, Warm, Or Cold?

Is Drinking Green Tea Before Bed a Good Idea?

Since iced tea uses fewer tea bags and is watered down, hot tea may have more antioxidants, but tea that is cold-brewed over a few hours has antioxidant levels that are comparable to hot tea.

Green tea, whether cold or hot, is high in catechins and epicatechins, which are thought to be responsible for tea’s health benefits. The substances are part of a class of plant chemicals known as flavonoids, which have been shown in studies to help reduce inflammation and consequently plaque development in arteries.

Green tea is a drink that is appreciated for its flavor. It offers the same health advantages whether it is served hot or cold.

How Much Green Tea Should You Drink?

Studies indicate that drinking three to five cups of green tea each day is the most beneficial to one’s health. Some people may be sensitive to heavy quantities of green tea, but the benefits greatly exceed the risks.

Decaf Green Tea

It’s important to realize that decaf tea does not always imply that it’s caffeine-free. According to the US Food and Drug Administration (FDA), decaf beverages still contain caffeine.

Green tea that has been decaffeinated has only 2 milligrams of caffeine. To be devoid of its natural caffeine, the tea must go through a procedure that gets rid of some of its anti-oxidants which in turn makes it considerably less healthful. Decaffeinating green tea removes some of the tea’s potent antioxidants, therefore decaf green tea may not provide as many health advantages as regular green tea.

Side Effects of Green Tea

  1. Sleeping disorders may result from excessive consumption

Excessive intake of green tea, like any other caffeinated beverage, can produce headaches, irritability, anxiety, heartburn, and sleeping problems. As a result, it’s best to limit yourself to 2 or 3 cups of green tea every day.

  1. Upset Stomach

Polyphenols, often known as tannins, are found in green tea. They elicit stomach aches, nausea, and constipation by increasing stomach acid in the body. Drink your green tea between meals or after meals to avoid this problem.

  1. Dehydration

Green tea is well-known for its ability to act as a natural diuretic. Green tea use causes the body to lose water through urination, which can lead to electrolyte imbalance and dehydration.

  1. Vomiting and diarrhea

Drinking large amounts of green tea might cause this side effect due to the caffeine content.

How To Make Green Tea

Here’s a step-by-step guide on how to make loose leaf green tea:

Is Drinking Green Tea Before Bed a Good Idea?

  1. Allow to cool for a few minutes after heating water to 80–85°C / 176–185°F.
  2. Pour water in your glass/mug first.
  3. add a teaspoon of the tea leaves into the water. You can add them directly to the water or use a tea strainer, sieve, or infuser.
  4. Green Tea should be steeped for three minutes. The steeping time will vary depending on how strong you want your tea. If you steep it for an extended period of time, the tea will become bitter and grassy.
  5. Add in the sweetener of your choice or any ‘extras’ and enjoy.

Here’s a step-by-step guide on how to prepare a teabag green tea

Is Drinking Green Tea Before Bed a Good Idea?

  1. After boiling, allow the water to cool for 2–3 minutes to bring out the finest in your delicate tea leaves.
  2. Pour hot water over the tea bag to release the aroma.
  3. Infuse the tea bag for up to 3 minutes. If you prefer a stronger flavor, brew for a little longer, but be careful not to over brew as this can result in bitterness.
  4. Remove the tea bag and enjoy your deliciously green tea!

What Other Time of The Day Is Best to Drink Green Tea

  • Do not drink green tea very early in the morning

Due to its high catechin concentration, drinking green tea on an empty stomach in the morning can have negative effects on the liver.

Green tea contains catechins, so you need to restrict the amount ingested. Catechins at excessive concentrations can harm the liver. Green tea should be consumed between 10:00 and 11:00 a.m.

  • Drink green tea in between meals

To increase nutritional intake and iron absorption, drink a cup of green tea between meals, for example, two hours before or after. If you have anemia, you should avoid drinking green tea with food.

Final Thoughts

Green tea can give you a variety of great health benefits, both emotionally and physically, if you drink it before bed. Even if you dislike the taste of green tea, making a routine of drinking a hot cup of green tea in bed can help you unwind and relax by providing you with much-needed time away from your daily concerns.

You might find yourself waking up in the middle of the night to use the restroom if you drink your cup of green tea immediately before bed, it is advisable to drink it an hour before going to bed is great so you can use the restroom before going to sleep.

Consider including green tea into your daily routine to help you feel better, lose weight, and lower your risk of chronic diseases.

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