What Is Lettuce Water and Does It Really Help You Sleep?

|Updated Jun 28, 2021
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Have you heard of lettuce water? If not, check your feed. It's the newest trend on TikTok, and it promises to help you fall asleep faster. We had to get to the bottom of this. Here's what to know about lettuce water, which has 27 million views and counting.

First of all, when did TikTok become everyone's favorite source for so-called health trends? Recently, chlorophyll was garnering millions of views, so tried adding the green droplets to our water, hoping to see benefits of clear skin and better gut health. Then we checked out the newer craze of drinking "proffee" (protein powder in their coffee) in the morning. After that, we were somewhat horrified to watch people try "Dry scooping," or throwing back a scoop of pre-workout powder like a shot of tequila. (One woman reported that it triggered a heart attack.)

Now, we're checking out the newest health trend that's reached more than 27 million views,  "lettuce water," which is supposed to help people get to sleep faster. To make lettuce water, you simply pour boiling water over romaine lettuce leaves and sip it slowly. The taste has been described as "disgusting" and some people even hold their noses as they sip. Whether or not it's the latest craze on social media,  we took a scientific look at lettuce water, to find out if it's worth drinking, or a big waste of time (and perfectly good salad greens). Here's what we discovered.

https://www.tiktok.com/@shapla_11/video/6968179022928809222?referer_url=https%3A%2F%2Fnypost.com%2F2021%2F06%2F18%2Ftiktok-hack-claims-drinking-lettuce-water-helps-with-sleep%2F&referer_video_id=6968179022928809222&refer=embed

Lettuce water first came into view after a study published by the National Library of Medicine in 2017 that proved lettuce has sleep-inducing effects on mice. This study is referred to and credited in a majority of the lettuce water TikTok videos. However, nutritionists and doctors make it clear that there is no evidence that tells us this works on humans, and some are even going out of their way to tape their own videos, explaining that this drink won't help you sleep faster because it's not "factual."

The study authors wrote that there seems to be a benefit, at least for mice: "The results of this study show that lettuce, especially romaine lettuce, is an interesting and cheap source of sleep-potentiating material and antioxidant polyphenols. The seed and leaf extracts derived from romaine lettuce potentiates the pentobarbital-induced sleeping behavior in mice. Romaine lettuce could provide extracts with sleep-potentiating activity. In addition, the antioxidant polyphenols being used as natural antioxidants of the brain against the oxidative damage could be obtained from these extracts."

Doctors and RDs Debunk the Lettuce Water for Sleep Theory

Plastic Surgeon Dr. Ricky Brown produced a video and said: This stuff won't make you sleep faster, unless your mice," to his 6.7 million followers on TikTok. Dr. Karl also produced his own video and called it, Lettuce Water: Fact or Fiction? and debunked the entire myth. He pointed out that the 2017 study is not accurate for many reasons. In the video, he says: "One they gave mice purified chemical extracts of lettuce, not the actual leaves. Two, they never indicated how long it actually took for the mice to fall asleep, instead, they gave them a drug called pentobarbital which already provides sleep-inducing effects. Third, researchers excluded mice that took too long to fall asleep which skewed the results."

However, there is nothing harmful about drinking warn lettuce water and in fact, there are health benefits, whether or not you add the lettuce. Drinking plain warm water impacts the body differently than drinking room temperature or cold water and has proven science-backed health benefits. And, if you're going to add anything to your warm water, you may want to consider adding a lemon. Or just try plain old water. But drink it warm, not cold.

4 Health Benefits of Drinking Hot and Warm Water. Hold the Lettuce!

When searching whether lettuce water held any magical properties what we found was simply that drinking water (with or without the lettuce or other infusions) was a benefit, especially when trying to lose weight, stay warm, or when you're fighting something off.

1. Drinking 16 ounces of Room Temperature Water Will Boost Metabolism

Everyone wants to speed up their metabolism, and it turns out that water can help here as well. In a study of 14 healthy, normal-weight participants (seven men and seven women), results found that the subjects who drank 500 ml (or 16 ounces) of water increased their metabolic rate by 30 percent within just 10 minutes of drinking, and reached its highest rate of energy production 30 to 40 minutes after drinking. For men, blood "lipids mainly fueled the increase in metabolic rate," and for women, "carbohydrates were mainly used as the energy source." If you're looking to lose weight, that means that drinking a tall glass of water appears to mobilize carbs or fat, depending on your gender, but either way, burning fuel is a benefit.

2. Hot water may help treat cold and or flu symptoms, relieve nasal congestion

If you have a sniffle or stuffed up nose, sore throat, or cold, the mist from a steamy cup of hot water plays a big role in clearing sinuses and treating cold or flu-like symptoms.

In one study, 30 subjects suffering from the common cold or flu were separated into two groups. One group was given hot liquid and the other group was given room temperate liquid. Results suggested that the hot drink provided "immediate and sustained relief from symptoms of runny rose, cough, sneezing, sore throat, chilliness, and tiredness, whereas the same drink at room temperature only provided relief from symptoms of runny nose, cough, and sneezing."

In another study done by doctors in Miami, researchers compared and contrasted the effects of drinking hot water, cold water, and chicken soup on the best way to treat a stuffed-up nose. Results showed that drinking hot water increased how quickly someone could clear their congested nasal passages, "through the nasal inhalation of water vapor," suggesting that hot water is superior to cold water to clear out your nasal passages and get over a cold faster.

3. Drinking Hot Warm Reduces Shivering, Helpful for Spending Time Outdoors

Feeling cold (camping or doing other activity at altitude) to the point where your teeth are chattering or your muscles shivering means your body temperature has dropped from 98.6 to a few degrees below. Shivering is the body's automatic way of producing heat. Whether you're hiking, camping, swimming or just spending time outdoors in the cold, drinking adequate water is extremely important to help your body not lose more heat than it can produce, which results in hypothermia, when the body core temperature drops to 95 degrees or lower and you can suffer organ failure.

When you start to lose heat faster than you can produce it, your nervous system, heart, and other organs can't function properly and this can happen even if your temperature drops just a few degrees. One study suggests that drinking hot water at 126 degrees Fahrenheit helped participants get their body temperature heat up and spend less energy maintaining a healthy, functional state.

4. Warm Water Aids Digestion in Post-Operative Recovery

Drinking warm water helped aid digestion for patients who had undergone laparoscopic surgery to remove their gallbladder. In a study, 60 patients were separated into two groups: The experimental (drinking warm water) and the control group. Results found that patients who drank the warm water after surgery recovered faster and experienced a "favorable impact on intestinal movements." This has implications for anyone undergoing surgery or anesthesia since generally the post-operative norm is to not leave the hospital until you've had a bowel movement, so mothers who have had a C-section and even those patients who have had their appendix out could benefit from drinking in order to move things along.

The 13 Best Foods to Boost Your Immune System to Fight Off COVID-19 Symptoms

Here are the best foods to eat on repeat, to boost immunity and fight inflammation. And stay off the red meat.

1. Citrus for Your Cells and Healing

Your body does not produce vitamin C, which means you need to get it daily to have enough to create healthy collagen (the building blocks for your skin and healing).The recommended daily amount to shoot for is 65 to 90 milligrams a day, which is the equivalent of one small glass of orange juice or eating a whole grapefruit. Almost all citrus fruits are high in vitamin C. With such a variety to choose from, it's easy to get your fill.

2. Red Peppers to Pump Up Skin and Boost Immunity with Twice the Amount of Vitamin C as an Orange Has

Want even more vitamin C, add red bell peppers to your salad or pasta sauce. One medium-sized red bell pepper contains 152 milligrams of vitamin C, or enough to fulfill your RDA. Peppers are also a great source of beta carotene, a precursor of vitamin A (retinol). How much beta carotene do you need a day: You should try to get 75 to 180 micrograms a day which is the equivalent of one medium bell pepper a day. But a red pepper has more than two and a half times your RDA for vitamin C so eat them all winter long.

3. Broccoli, But Eat It Nearly Raw, to get the Most Nutrients Out of It!

Broccoli may be the most super of superfoods on the planet. It's rich in vitamins A and C as well as E. The phytochemicals in it are great for arming and strengthening your immune system.How much lutein should you eat in a day: There is no RDA for lutein, but experts say get at least 6 milligrams.

4. Garlic, Eaten By the Clove

Garlic isn't just a great flavor-enhancer, it's essential for your health. Garlic’s immune-boosting properties are tied to its sulfur-containing compounds, such as allicin. Allicin is thought to improve your immune cells' ability to fight off colds and flu, and viruses of all kinds. (Smelling more garlic on the subway? It could be smart coronavirus management.) Garlic also has anti-microbial and anti-viral properties thought to fight off infections. How much should you eat in a day: The optimal amount of garlic to eat is more than most of us can fathom: Two to three cloves a day. While that may not be doable, realistically, some people take garlic supplements to get 300-mg dried garlic in a powdered tablet.

5. Ginger is a Power Player for Immunity and Digestion

Ginger is another ingredient that has super properties when it comes to fighting off illness. It has been shown to decrease inflammation, which can help if you get swollen glands or a sore throat or any inflammatory ailment. Gingerol, the main bioactive compound in ginger, is a relative of capsaicin, and is responsible for much of its medicinal properties. It has powerful anti-inflammatory and antioxidant benefits.How much should you eat a day: Most recommendations land on 3–4 grams of ginger extract a day, or up to four cups of ginger tea, but no more than 1 gram a day if you are pregnant. Some studies have linked high dosages to an increased risk of miscarriage.

6. Spinach, Wilted, Not Steamed (Also Kale and Dark Leafy Greens of All Kinds)

Spinach is not only packed with vitamin C but also antioxidants and beta carotene, both of which give your immune system the healthy boost it needs to fight off invaders. Don't overcook your spinach, since the more it's cooked the less active the antioxidants will be. If you eat it raw or lightly steamed you'll keep more of the nutrients intact.How much should you eat a day: Aim for 1 cup fresh spinach or 1/2 cup cooked per day, but this is the right moment to try the raw or slightly wilted approach. Order warm or wilted spinach salad when you go out, or make it yourself with olive oil, pine nuts, and vegan parm.

7. Almonds for the Win, Pop Them Like Candy

Vitamin E in almonds will help ward off colds and flu and is key to your immune system humming along. It’s a fat-soluble molecule, meaning it requires the presence of fat to be absorbed, so nuts are the perfect package for E to make it into your system.How much should you eat in a day: A half-cup serving, or 46 whole, shelled almonds, provides almost 100 percent of your RDA of vitamin E. Almonds are great for you but they don't come with a "free" pass, since 1/4 cup is a serving and has 162 calories, so double that for your RDA and you're eating about 325 calories. Throw them into smoothies instead.

8. Turmeric to Fight Inflammation, Put it In Your Tea or Smoothie

This highly pigmented spice is known for its anti-inflammatory qualities. How it helps immunity? It decreases exercise-induced muscle damage. Tumeric bolsters the immune system by stimulating antibody formation and people with auto-immune diseases are told by their doctors to take 500 mg of curcumin daily to reduce inflammation and stave off soreness.How much should you eat in a day: Try adding extra Tumeric to your diet during periods of stress or during flu season. Or take 500-2,000 mg of curcumin to help fight inflammation and power up your immune system.

9. Green Tea by the Gallon, Skip the Coffee and Sip this Instead

Green tea has high levels of EGCG, (epigallocatechin gallate) a hard-working antioxidant that is known to boost immune function. Green tea is steamed so the EGCG is still active when you drink it.Green tea also contains L-theanine, an anti-oxidant which appears to help in the production of T-cells in your body, the killer  L-theanine may aid in the production of germ-fighting compounds in your T-cells.How much green tea should you drink in a day: The optimal amount is three to five cups in a day, but most people won't get to that level. Any amount is better than nothing. Swap out a usual beverage daily for green tea could improve your health.

10. Papaya, The Tropical Healer to Keep You Vacation-Healthy All Year Round

Papaya delivers over twice your recommended daily amount of vitamin C in one fruit. It also contains an enzyme called papain that has anti-inflammatory effects -- and inflammation is one factor in most illnesses, so avoiding it can help your body fight off bacterial infections like sinusitis.Papayas contain potassium, vitamin B, and folate, which is a powerful cell rebuilder. Exactly how folic acid works to build immunity is linked to its role in protein synthesis, and researchers think that any mechanism in which cells proliferate can be affected (which is why it's critical for pregnant women). People who are folate-deficient have compromised immune systems.How much folate should you eat a day: Whether you are pregnant or not, folate (vitamin B9) is a great vitamin to keep your cells healthy and strong. The recommendation is 400 micrograms a day, or get it from legumes, spinach, papayas, and avocados.

11. Kiwis, a Vitamin Powerhouse

Kiwis are full of folate, vitamin K, vitamin C, and potassium. These vitamins in combination work in the body to build healthy cells, fight infection and keep your immune system humming along. Vitamin K deficiency is rare but when people don't have enough they suffer from weak bones and compromised immune systems. The inflammation system in the body is also dependent on vitamin K, especially your killer T cells that mobilize and fight cancer and other diseases.How much should you eat in a day: Vitamin K is one of the unsung heroes of the body. Women should get 90 micrograms a day, and men should have 120 micrograms.

12. Sunflower seeds to sprinkle on salads or eat by themselves

Sunflower seeds are especially healthy since they provide phosphorus, magnesium and vitamin B-6 as well as vitamin E. Your immune system needs vitamin E to function at full throttle. You can also get vitamin E from avocados and spinach and broccoli.How much should you eat in a day: Anywhere from 1 ounce (30 grams) per day to a healthy handful is considered healthy, but because they are high in sodium you might want to refrain from eating the entire bag. The raw seeds have 204 calories per quarter cup.

13. Miso, Soup or Paste to Add to Your Soups and Salad Dressings

The nutrients in miso -- which is a soybean paste that has been fermented with salt and a koji starter -- boosts immune system function by delivering healthy probiotics to the gut, making your microbiome healthier. How does Miso benefit your immune system?  It is a "sirt" food, which are foods that contain high levels of ‘sirtuins’ or proteins that regulate cells and activate metabolism. A diet high in sirts is believed to lead to weight loss, increased wellness and longevity.How much should you eat in a day? Researchers believe that consuming one bowl of miso soup per day, as is the tradition in Japan, lowers the risks of breast cancer. Other than its high sodium content there is no reason to stay away from miso with all its varied health benefits. We say cheers to that.