The Real Benefits of Lemon Water According to Science

By Mark / November 2, 2014


Lemon water sounds like a good idea, and you’ve probably seen pictures on Pinterest of large pitchers of water with vibrant lemons and the top 10 reasons why you should be drinking it.

It’s easy to take these images and lists at face value, and most won’t end up actually drinking lemon water regularly, rather be able tell their friends the top 10 reasons lemon water is good for you.

We’re interested in the part that adds vitality and incredible cleansing effects on the body.

If you’re just getting started on a path of feeling better through diet change then making a replacement of lemon water for a morning coffee is a great first step.

I truly believe that we have the power to heal our bodies by adapting what we consume every day.

Our Lemon Water challenge is to:

  1. Look through the top benefits we’ve listed below and find the one benefit that will motivate you to start incorporating lemon water into your daily life.
  2. Commit to 14 days of lemon water
  3. Write down how you feel on day 1, then on day 14
  4. Let us know what you experienced.

What We Know About Lemons

Botanically it is a citrus fruit in the Rutaceae family (scientifically known as Citrus Limon), and while being the smallest in its family has more comprehensive health benefits than its family members (1).

They are likely to have originated in India around the Himalayan foothills and spread from there.  The two main types of lemons are the Lisbon and Eureka.  There are other’s that have come into vogue such as the sweeter Meyer Lemons.

The fruit is lower in calories about 29 per 100 grams, which makes it one of the lower in its family.

Lemons as a Source of Vitamin-C

We know lemons are high in vitamin C which is essential for normal growth and development (2).  A single lemon contains around 30-40 mg of vitamin C (3) (in comparison an orange contains around 80-90 mg of vitamin C).

Vitamin C has been studied extensively and shown to have a myriad of health benefits from protecting against prenatal problems, cardiovascular disease, eye diseases, skin wrinkles, and immune system deficiencies (4).

It acts as an antioxidant and helps protect cells from damage caused by free radicals (5).

If you’d like to go down the rabbit hole of vitamin c start with this fact sheet, as we’ll be focusing on some of the more unique properties of lemon water.

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Unique Health Benefits of Lemons

1. Lemon Water as Detox and Cleanse

This is the first benefit that comes to mind when it comes to lemon water, and usually the most overstated.  We’ve cited a few scientific sources that give true insight on the potential for lemon water as a natural detox.

Not surprisingly, the amount of urine is increased when drinking Lemon water however lemon water brings with it the primary compound known as Citrate.

This is a naturally-occurring inhibitor of toxins (which can build up in the form of crystals in the body).  The Citric acid enhances your body’s ability to naturally flush out these unwanted toxins.

Toxins come into our systems through various sources from the air we breathe to some of the foods we eat. Two of the more well known studies shed some light on the use of lemon as a cleanse:

  • As published by Dutch researchers in a 2002 edition of the European Journal of Nutrition, lemon peels and the waste stream of the lemon peels are effective in lowering blood and liver cholesterol levels. Although performed on animal subjects, these results insinuate that lemon peel consumption could be beneficial to those with fatty liver disease.
  • As published by Indian researchers in a 2005 edition of BMC Pharmacology, hesperidin (a citrus bioflavonoid found in lemons) demonstrates the ability to protect the liver from damage. After administration of CCl4 (a well known liver toxin), the authors concluded that hesperidin demonstrates a protective effect on the liver (6).

Our liver is where we filter everything we consume and neutralize many toxins.  We’ve covered the various methods of cleansing with related products like apple cider vinegar.

These studies shed light on the lemon’s ability to enhance the liver’s function of filtering out unwanted toxins.

The main premise behind lemon water as a detox revolves around its ability to enhance your bodies enzyme function and stimulate the liver.  

Studies indicate that in cases where toxins have built up in the body, the lemon juice and peel have cleansing properties.

Using lemon water, especially after meals may help you lower the amount of toxins in your body.

2. Improve Digestion with Lemon Water

Citrus flavonoids are the primary cause of improved digestion when drinking warm lemon water.

They aid in the assimilation of food, help prevent fatty liver, decrease chances of cardiovascular disease, fat-lowering, and reduced insulin resistance.

This has to do with it’s ability to inhibit certain synthesis of fat in the body (7).

Citrus flavonoids act as a great digestive tonic, with appetite suppressing abilities (8).  It has also been shown to calm an upset stomach or mild indigestion.

This has to do with the hydrochloric acid in your stomach that start the process of breaking down your food.

It is believed the citrus flavonoids in lemon water support the hydrochloric acid in the stomach in breaking down food (9).

The best way to utilize lemon water as a digestion aid is to also include the zest of the lemon which will improve the good bacteria in your gut.

3. Alkalize with Lemon Water

lemonrIf you’re new to the concept of alkalinity, it’s the process of neutralizing acid in the body.

The basic idea is your body has certain acids that can build up causing negative side effects such as acid reflux, upset stomach, acidosis, and  beyond (10).

There are various ways to check the pH levels of your body to find out if you are too acidic.

An ideal range to fall between is 4.6-8.0 and can be tested with pH strips using saliva or urine (11).

If you plan to use lemon water or alkaline drinking water to manage your body’s acid levels we recommend speaking with your doctor first and identifying your pH levels.

If you identify a need to alkalize, then we recommend getting some home pH strips that will allow you to stay within the recommend ranges.

Lemon water is a safe and effective way to manage your pH levels and achieving healthy alkalinity may benefit in bone health, reduced muscle wasting, decrease chances of hypertension and strokes, improved cardiovascular health, and improved memory (12).

4. Weight loss/Appetite Suppressant

We’re approaching this claim with caution since any new health fad that becomes popular can get turned into a “fat burning miracle”.

There is a lack of scientific research that supports the claim of weight loss fully, however this doesn’t mean the claims are false, simply that additional research is needed (13).

One of the studies that does exist was not a human trial but did show significantly reduced weight gain when a diet high in fat was being consumed (14).

Most people whether they want to admit it or not fall in the high fat diet category.

Pectin and polyphenols are the main substances found in lemons that have more research available showing weight loss and appetite suppressing qualities.

Pectin gives a feeling a fullness much like other soluble dietary fibers, that may help reduced caloric intake.

In one study these two substance increased fat metabolism, increased HDL (good) cholesterol & lowered LDL (bad) cholesterol and decreased the production of inflammation (15).

The main study was carried out by Drs. Sheau C. Chai, Shirin Hooshmand, Raz L. Saadat, and Bahram Arjmandi, of Florida State University.

It’s a Slow Process Don’t Make it Slower by Quitting.

Every ‘body’ will respond differently to lemon water, which is why we recommend adding this to your diet without any other major changes to isolate the effects.

This will allow you to better attribute any changes you experience and not be confused if it was the new multivitamin you started taking.

While additional research is needed regarding the weight loss benefits of lemon water, positive benefits are achieved by replacing sugary drinks for lemon water.  

We recommend replacing your morning coffee with lemon water for at least 2 weeks.  

Keep a journal of your mood, energy, and cravings for the 2 weeks to see what positive benefits you experience.

5. Reduced Wrinkles and Improved Skin

This claim states benefits from both drinking lemon water and applying topically.  Lemons have been found to be high in antioxidants (16) which are linked to anti-aging properties.

The primary cause of aging comes from free radicals that cause the breakdown of various tissues in the body, namely skin.

Research showed that plant derived antioxidants were able to reverse the breakdown of collagen fibers in the skin (17).

Collagen gives skin it’s strength, structure, and plumpness while protecting the skin from absorbing toxins (18).

Now the next time you see your friend with great skin you can tell her you’re jealous of her collagen.

Free radicals in small amounts are not damaging to the body, but you should be aware of practices that increase your exposure to free radicals.

The most common and most dangerous forms of exposure can come from drugs, radiation, pesticides, air pollutants, solvents, alcohol, tobacco smoke, pollution, and even foods we eat (19).

Most healthy people who do not smoke should not be overly concerned with too much free radicals in their system.

If you are concerned or curious you can take a urine test to get an idea of where you’re at (20).

If you want to apply lemon juice topically there are various ways depending on preference.  The simplest way is to dilute in water and pat on the face with a damp cloth avoiding the eyes.

Other methods range from creating sugar scrubs to combining with Greek yogurt.  In all cases the antioxidants in the lemon will be the active ingredient.

6. Benefits of Essential Oils in Lemons

Lemon-OilEssential oils as a whole is a topic we will cover in greater detail since there is a lot of debate on their effectiveness, especially when you look at the claims.

There are however plenty of benefits that come from essential oil use, but we’ll stick to those that have been researched and tested.

At the time of this writing we found 14000+ articles that had essential oils being studied and researched (21), and lemon oil had over 500 alone.

If you’re looking to get the oils into your lemon water simply take the peel and squeeze or twist the outer zest portion.

If you watch closely you’ll be able to see the lemon oils coming out of the zest.

One of the most interesting benefits that has been linked to lemon oil is its moderate antimicrobial activities against bad bacteria, yeast and fungi such as Candida albicans more commonly known to cause yeast infection (22).

These antimicrobial effects have a range of benefits when ingested and used topically, and are the core of where the benefits are derived.

A study was published took a look at how lemon oil would affect pregnant women dealing with vomiting and nausea.

Around 100 women participated and after just 2 days reports of dramatically decreased symptoms were reported as compared to the placebo group.

After 4 days a decrease of nausea and vomiting was seen on average of 33% (23).

While this study was specific to pregnant women, it may suggest that those dealing with similar issues who are not pregnant would see similar benefits.

In another study performed by the Central Food Technological Research Institute looked at how geraniol, a phytonutriant found in lemon, aided in reversing diabetic neuropathy.

The study showed that sciatic nerve damage was reduced through lemon oil (geraniol) use.

In the full 8 week study cellular function was restored, suggesting that the use of lemon oil regularly can assist in regulating energy stores, and as previously mentioned help preventing disease (24).

Lemon oil is perhaps the most researched part of the lemon and also the part no one seems to include when making their lemon water.  

Consider using the zest of the lemon in your drink or extracting the oils to include in your drink for maximum benefit.

Lemon Water Safety Measures

Safety measures for lemon water?!?  I know what you’re thinking but there are a few things to keep in mind:

First off you really shouldn’t be eating the seeds of the lemon.  A few here and there isn’t going to be terrible for you but if you plan to drink lemon water regularly then make sure you’re avoiding the seeds.

They contain small amounts of salicylic acid which is the main ingredient in asprin, along with the bitter/astringent coating on the outside of the seed which gives it the bitter taste.

The easiest way I’ve found to get rid of them is to use a small strainer or a lemon press.

If you’re used to sweetening your tea or coffee then your taste buds are going to want a spike of sugar in your lemon water.

Try and avoid adding sweeteners other than raw honey as it will negate many of the benefits I mentioned.

If you can start to cut more and more sugar out of your diet you will find your taste buds resetting and your cravings for sugar drop dramatically.

I had never experienced this until I cut out most of the sugars in my diet, but I can honestly say my cravings for sugary foods dropped dramatically.

Another common concern is what effects lemon juice has the enamel of your teeth.  As long as you’re not using it like mouthwash your teeth will be safe.

With the amount of soda that people drink in our time, substituting lemon water will actually save your teeth.  If you’re super concerned about it then try using a straw

Drinking lemon water is one of these little things that we can do on a regular basis that can have long term benefits.

The people who will the most dramatic effects in the beginning will be those who can replace a morning coffee or soda with lemon water.

As with any new addition to your diet, I recommend giving it a minimum of 2 weeks to see what positive benefits you’re getting.

We’re so used to instant gratification in almost everything we do, so when it comes to healthy diet and exercise it can be easy to get discouraged if we don’t see results in a few days.



About the author


I've been in the health and wellness field for over 15 years. My specialty is utilizing plant based solutions combined with the right kind of exercise to live an optimal life. I hope we can learn from each other. Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of Root and Sprouts or its staff.

  • Becky E

    Mark – do you have any comments on Moringa Tree as a dietary aid?? Also, what about Stevia? I no longer use sugar or any artificial sweetener. Stevia and raw honey rule in my recipes! Allergy to soybeans (in any form) prevent using most “diet” foods. So, fresh veggies and local meats only are in my diet.

    • Mark

      Becky – I researched Moringa several years ago, but never actually wrote anything up, was more of a self educating. I’ll have to look into Moringa and Stevia and see if we can incorporate some of it in our future posts for you.

      I love raw honey myself!

  • Emma

    Hey! Just one thing – I hope it’s a typo in the first part of section 2: you say lemon water “reduced insulin sensitivity”… but the cells SHOULD be sensitive to insulin! Did you mean it reduced insulin resistance??? Otherwise great article!

    • Mark

      Yes, thank you, changing that now!

  • Gabrielle

    Great article! Do you have references for your claims? I just started drinking lemon water and I hope that over long whiles ill get to feel some benefits.

    • Mark

      Yes, if you click any of the numbers in parenthesis you can check the references they look like this (1)

  • Muhammad Iqbal

    Thanks for this information, I started warm lemon water in the morning on an empty stomach and it is really full of benefits. I was suffering from many health problems especially back ache, digestive disorders, a weak immune system and tiredness. I have been drinking lemon water regularly and have felt great benefits to get rid of my health problems. I take half a lemon in a cup of warm water first thing in the morning and do break fast after about 25 minutes. It is a great source to alkaline your system and you can notice the good effects of lemon within two weeks of drinking it, but you have to be regular without any break. Try it and you will be happy.

    • Mark

      Glad to hear you’ve had some noticeable changes after incorporating lemon water into your routine.

  • Vickie

    Can you add coconut oil to the lemon water?

    • Mark

      I don’t see why not. My only suggestion would be to do this with warm lemon water, as most coconut oil will be in a solid form.

  • robbybonfire23

    The spelling should be “body’s” not “bodies” in point # 1. Bodies is plural. Each of us has just one body.

  • Janet Welsh

    Have you ever used lemon essential oil? All the health benefits and more because of its potency, without the acidity… I’d love to send you a sample

  • Beth Marsh

    I have been drinking lemon water every morning for the past three weeks. I use one whole lemon, squeezed in room temp water. One of the biggest things I have noticed so far I have little to no acid refux. I have not needed an antacid in either pill or tablet form since starting and did not even notice until the other day that I had not been taking them. My diet has remained the same. Interested to see what else I will notice. Thanks for the article.

    • lydia

      Let me tell you something else.I started drinking lemon water to kick start my weight loss.My periods had stopped because of my weight.After drinking lemon water for 2 weeks i have had my periods again.I am very encouraged.My tummy has shrunk a bit.

  • Myrna Loy

    Does it matter if it is cold, warm or hot? I have been using half a lemon without the peel and without the seeds and put the segments in water and blend it. I have been wondering if that is better, about the same or not as good.

  • Khrysteen Kaytor

    I have been drinking lemon water religiously for 1 week now. I use one whole lemon, washed and sliced. I put it in my water bottle which holds the equivelant to 2 regular sized bottles of water from the grocery store, I let it chill over night then add ice cubes in the morning and drink! I have noticed I don’t crave for much also, I am alot less hungry. Which is GREAT for me because I am 27 and could really use it to kick the whole late night cravings issue. At first it was sour and my taste buds were probably crying but, the benefits for me out weigh the taste so I will keep going and see what else I notice. I am hoping to see a change in my skin, so I will wait patiently and drink, drink, drink :)

  • K Carter

    If you made a pitcher of lemon water at kept it in the fridge, sealed, until you finished it, would it still be effective? I like mine warm, but I don’t always have the time to heat the water and do the whole process. I think I’d be more motivated to keep it up every day if I could take the juicing every day step out. Thoughts?

  • Rohit

    healthlogus fact