Table of ContentsView AllTable of ContentsBenefits of LemonLemon NutritionLow Vitamin C RisksBenefits of Lemon WaterWho Should Avoid Lemons?

Table of ContentsView All

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Table of Contents

Benefits of Lemon

Lemon Nutrition

Low Vitamin C Risks

Benefits of Lemon Water

Who Should Avoid Lemons?

Lemons are a nutritiouscitrus fruitthat can provide several health benefits. They’re a rich source ofvitamin C, which may help reduce the risk of heart disease and cancer, boost your immune system, and assist in managing a healthy weight.

This article covers the nutritional content of lemons, their possible health benefits, and who should consider avoiding them.

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A woman slicing a lemon on a cutting board

Lemons have lots of nutrients, like high vitamin C and fiber content. These crucial nutrients have many health benefits and may help you meet your nutrition goals.

Boosts the Immune System

Lowers Stroke Risk

Research has found that theflavonoids(phytonutrients found in plants) in citrus fruits may reduce the risk ofischemic stroke(blood clot in a vessel leading to the brain) in women.Another study found that people with higher flavonoid intake had lower incidences ofheart failure, ischemic heart disease, and stroke.

Lowers Blood Pressure

Research found the flavonoids in lemons and the water extract from lemon peels may help suppress blood pressure.The amount of lemon intake negatively impactssystolic blood pressure, the top number in a blood pressure reading that indicates the pressure in your arteries when your heart beats.

Flavonoids metabolize and protect the heart when they interact with thegut microbiome(microorganisms in the digestive system).Their activities are associated with decreased blood pressure with 15% of the association between flavonoid-rich foods and systolic blood pressure.

Prevents Cancer

A meta-analysis on citrus fruit and lung cancer risk found that those with the highest citrus fruit intake had a 9% lower risk of developinglung cancerthan those with the lowest intake.

There is also evidence that citrus peels may contain anticancer properties. One study evaluated the anticancer potential of citrus peels on in vitro (test tube) assays and in vivo (living organism) cancer models.They found anticancer activity, and researchers encouraged using citrus peels as anticancer food additives.

In Vivo vs. In Vitro: What Are the Differences?

Increases Iron Absorption

Lemons may increaseironbioavailability (the amount available in the body) and bioaccessibility (the amount available for absorption).This is likely due to the high vitamin C content in the citrus fruit.

Pairingiron-rich foodswith foods high in vitamin C is one way to increase iron absorption since vitamin C promotes the absorption of iron.Medical professionals advise eating these foods at the same time. However, there is evidence that consuming them separately may also help.

A study evaluated the effectiveness of iron and vitamin C administered separately to improve iron status in young women.Researchers found that, even when taken separately, vitamin C increases iron absorption. The amount of vitamin C you get could be a more important factor than the timing of consumption.

Maintains a Healthy Complexion

Citrus juicemay help prevent or reduce signs of aging. Research has found that citrus juice affects the skin in the following ways:

Prevents Asthma

Citrus intake is associated with a lower risk ofasthma. A study evaluated the role of nutrition in asthma prevention.It found that consumingfruitsand vegetables daily reduced the odds of asthma and wheezing incidents. High citrus intake was associated with a reduced risk of asthma symptoms.

Aids in Weight Loss

Lemons may make you feel full faster. A randomized trial evaluatedglycemic response(how carbohydrates affect blood sugar) and appetite perception after eating bread with water, tea, or lemon juice.Researchers found that lemon juice resulted in a 1.5-times increase in gastric content volume compared to water, which correlated to lowered appetite perceptions.

Lemons are full of nutrients and low in calories, making them an excellent addition to almost any diet. Below are the nutrition facts for one lemon:

What About Lemonade?Given what is known about lemons and vitamin C, it may seem that lemonade is good for you. However, it’s often high in sugar and, for this reason, is far less healthy than lemons. One cup of lemonade has 90 calories and 20 g of sugar.

What About Lemonade?

Given what is known about lemons and vitamin C, it may seem that lemonade is good for you. However, it’s often high in sugar and, for this reason, is far less healthy than lemons. One cup of lemonade has 90 calories and 20 g of sugar.

Possible Conditions From Not Consuming Enough Vitamin C

In the United States, it is unusual to have vitamin C deficiency. However, over weeks, people with little to no vitamin C can getscurvy. This potentially fatal condition can cause the following symptoms:

Scurvy risk factors include things that interfere with getting adequate nutrition, like having aneating disorder, having gastrointestinal problems that interfere with absorption, and living in poverty.

An Overview of Vitamin Deficiency

Is Lemon Water Just as Beneficial as Lemons?

While it doesn’t contain as many concentrated nutrients as lemon,lemon waterhas many benefits. If you find lemon water delicious and refreshing, it may be better than plain water to keep you hydrated. It may also mean you are less likely to reach for high-sugar beverages.

Lemons are a natural source of citrate, and their juices may raise urine citrate levels, which could help prevent or treatkidney stones.Drinking lemon water might help if you are at risk or prone to developing kidney stones.

Lemon juice has similar benefits but is highly concentrated and tart, so most people don’t drink straight lemon juice. Adding a splash of lemon juice to your water has a similar effect as adding freshly squeezed lemons—it’s refreshing and offers some nutrients, like vitamin C.

Most people can safely eat lemons or add them to their water every day. But, as with most things, moderation is key. Avoid or use caution when consuming lemons if you have:

A Word From VerywellTo protect tooth enamel from lemons, use a straw because it sends the juice to the back of your mouth, away from your teeth. Rinse your mouth with tap water after drinking, and reduce the amount of lemon in your drink or dilute it with water.—MELISSA NIEVES, LND, RD, MEDICAL EXPERT BOARD

A Word From Verywell

To protect tooth enamel from lemons, use a straw because it sends the juice to the back of your mouth, away from your teeth. Rinse your mouth with tap water after drinking, and reduce the amount of lemon in your drink or dilute it with water.—MELISSA NIEVES, LND, RD, MEDICAL EXPERT BOARD

To protect tooth enamel from lemons, use a straw because it sends the juice to the back of your mouth, away from your teeth. Rinse your mouth with tap water after drinking, and reduce the amount of lemon in your drink or dilute it with water.

—MELISSA NIEVES, LND, RD, MEDICAL EXPERT BOARD

Melissa Nieves, LND, RD

Summary

Lemons are full of beneficial nutrients, especially vitamin C. This citrus fruit may help boost your immune system and lower your risk of some health conditions. Adding lemons to your water is an easy and delicious way to incorporate them into your diet. If you have GERD, be careful, as it may worsen your heartburn.

19 Sources

Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read oureditorial processto learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.

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Freitas D, Boué F, Benallaoua M, et al.Glycemic response, satiety, gastric secretions and emptying after bread consumption with water, tea or lemon juice: a randomized crossover intervention using MRI.Eur J Nutr. 2022;61(3):1621-1636. doi:10.1007/s00394-021-02762-2

U.S. Department of Agriculture.Lemons, raw, without peel.

U.S Department of Agriculture.Lemonade.

National Institutes of Health Office of Dietary Supplements.Vitamin c: Fact sheet for consumers.

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Heidarzadeh-Esfahani N, Soleimani D, Hajiahmadi S, et al.Dietary intake in relation to the risk of reflux disease: a systematic review.Prev Nutr Food Sci. 2021;26(4):367-379. doi:10.3746/pnf.2021.26.4.367

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