Table of ContentsView AllTable of Contents1. Keeps You Hydrated2. Maintains Your Weight3. Supports Eye Health4. Boosts Immune System5. Relieves Muscle Soreness6. Aids Skin Health7. Improves DigestionWatermelon NutritionSide Effects of Eating WatermelonAre Watermelon Seeds or Rinds Good for You?Is It Safe to Go on a Watermelon Diet?

Table of ContentsView All

View All

Table of Contents

  1. Keeps You Hydrated

  2. Maintains Your Weight

  3. Supports Eye Health

  4. Boosts Immune System

  5. Relieves Muscle Soreness

  6. Aids Skin Health

  7. Improves Digestion

Watermelon Nutrition

Side Effects of Eating Watermelon

Are Watermelon Seeds or Rinds Good for You?

Is It Safe to Go on a Watermelon Diet?

Watermelon is a large, round, oval fruit with a green rind and juicy red or pink flesh. It has a sweet taste and may or may not have seeds, depending on the variety.

Thanks to its high water content and abundance of health-promoting nutrients, watermelon not only quenches thirst but also cansupport weight maintenance, eye health, and muscle recovery.

Ge JiaJun / Getty Images

Close-Up Of a person Cutting Watermelon Slices On Table

Your body uses water to remove waste, lubricate your joints, and maintain temperature.If too much fluid is lost and not taken back in,dehydrationcan set in, causing symptoms like fatigue, dizziness, dry mouth, and confusion.

Watermelon contains 91% water, making it a great food to help you stay hydrated.

With its high water content and low caloric density, watermelon may help promote satiety and support weight management.

A small study found consuming watermelon daily can promote greater satiety than a low-fat cookie snack for up to 90 minutes after consumption.Participants also experienced weight loss, as well as improvements in the following risk factors for heart disease:

Watermelon is a good source ofvitamin C. Observational studies found that higher vitamin C may reduce the risk ofcataracts(when the normally clear eye’s lens becomes cloudy).

The vitamin A in watermelon also is essential for healthy eye development especially in retina health, dim-light vision, and color vision.

Vitamin C has long been recognized as crucial forimmune system function. Insufficient vitamin C intake may lead to impaired immunity and a higher risk of infections.The citrulline in watermelon has potential antioxidant andvasodilation(widening of blood vessels) roles in our bodies.

The citrulline in watermelon can boost nitric oxide production and reduceammonia levels. Nitric oxide improves blood flow, increasing oxygen delivery to the muscles. This may help improve exercise performance and reduce muscle soreness after training.High ammonia levels can lead to muscle fatigue and lactate buildup, resulting in muscle soreness.

Although more research is needed, participants in one small study found improvements in recovery heart rate and muscle soreness 24 hours after consuming natural watermelon juice.

Watermelon’s high water content and small amount of fiber make it potentially beneficial for digestive health. Water is vital todigestionbecause it keeps food moving through the intestines and helps break down food so your body can absorb the nutrients it needs.

Fiber is a nondigestible carbohydrate important for preventing constipation and keeping you regular. It helps clean out bacteria and other buildup in your digestive tract to improve gut health.

A 1-cup serving of diced watermelon has the following nutrition profile in grams (g), milligrams (mg), micrograms (mcg), or percent of Daily Value (% DV):

Watermelon is reasonably high in vitamin C, which acts as an antioxidant and supports immune health, wound healing, and healthy growth and development.

Watermelon is a natural source oflycopene, known for its potential to reduce the risk ofprostate cancerand heart disease.It’s also a source ofcitrulline, which can help increase blood flow and may benefit exercise performance.

If you have digestive issues, diabetes, or migraines, you may want to avoid or limit watermelon in your diet. Some side effects include:

Can You Be Allergic to Watermelon?Whilewatermelon allergyis rare, it can occur in people with pollen allergies, especially those allergic to ragweed or grass pollen. The protein in watermelon resembles those found in pollen and confuses your immune system, resulting in symptoms such as itching. This is calledoral allergy syndrome(OAS).

Can You Be Allergic to Watermelon?

Whilewatermelon allergyis rare, it can occur in people with pollen allergies, especially those allergic to ragweed or grass pollen. The protein in watermelon resembles those found in pollen and confuses your immune system, resulting in symptoms such as itching. This is calledoral allergy syndrome(OAS).

Watermelon seedsare relatively low in calories yet high in nutrients. A 1-ounce (28 gram) serving of watermelon seed kernels includes many nutrients, such as protein, phosphorus, magnesium, iron, and zinc.Watermelon seeds are often roasted to create a crispy, nutrient-rich snack.

The watermelon’s often overlooked rind (green outer layer) is a good source of fiber and contains other essential nutrients like potassium and antioxidants.You can eat watermelon rind raw or incorporate it into baked dishes and stir-fries. When raw, it has a taste similar to that of a cucumber.

The watermelon diet is a low-calorie detox diet that claims to offer quick weight loss. However, no clinical trials have confirmed a relationship between the watermelon diet and weight loss or other health benefits.

While there is no upper limit on the amount of watermelon a person can consume daily, consuming around 2 cups of fruit daily is generally recommended.This 2-cup serving will meet the recommended daily fruit intake.

However, a balanced diet should include various types and colors of fruits, providing your body with a broad range of beneficial plant compounds.

Summary

Watermelon is a hydrating fruit containing vitamins A and C, lycopene, and citrulline. It may promote exercise recovery, aid in weight management, improve digestion, and support eye health. However, additional research is needed to confirm these benefits. Individuals with migraines or digestive issues such as IBS may want to be mindful of their watermelon consumption as it may trigger symptoms.

28 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.

Sorokina M, McCaffrey KS, Deaton EE, et al.A catalog of natural products occurring in watermelon-Citrullus lanatus.Front Nutr. 2021;8:729822. doi:10.3389/fnut.2021.729822

Watermelon.org.Nutrition facts and health benefits of watermelon.

American Academy of Family Physicians.Hydration: Why it’s so important.

MedlinePlus.Dehydration.

U.S. Department of Agriculture.Watermelon, raw.

Lum T, Connolly M, Marx A, et al.Effects of fresh watermelon consumption on the acute satiety response and cardiometabolic risk factors in overweight and obese adults.Nutrients. 2019;11(3):595. doi:10.3390/nu11030595

American Optometric Association.Diet and nutrition.

Oregon State University.Vitamin a.

Carr AC, Maggini S.Vitamin C and immune function.Nutrients. 2017;9(11):1211. doi:10.3390/nu9111211

Rimando AM, Perkins-Veazie PM.Determination of citrulline in watermelon rind.J Chromatogr A. 2005 Jun 17;1078(1-2):196-200. doi:10.1016/j.chroma.2005.05.009

Kiani AK, Bonetti G, Medori MC, et al.Dietary supplements for improving nitric-oxide synthesis.J Prev Med Hyg. 2022;63(2 Suppl 3):E239-E245. doi:10.15167/2421-4248/jpmh2022.63.2S3.2766

Gough LA, Sparks SA, McNaughton LR, et al.A critical review of citrulline malate supplementation and exercise performance.Eur J Appl Physiol. 2021;121(12):3283-3295. doi:10.1007/s00421-021-04774-6

Tarazona-Díaz MP, Alacid F, Carrasco M, Martínez I, Aguayo E.Watermelon juice: potential functional drink for sore muscle relief in athletes.J Agric Food Chem. 2013;61(31):7522-7528. doi:10.1021/jf400964r

National Institutes of Health.Vitamin C: Fact sheet for health professionals.

Petyaev IM, Pristensky DV, Morgunova EY, et al.Lycopene presence in facial skin corneocytes and sebum and its association with circulating lycopene isomer profile: Effects of age and dietary supplementation.Food Sci Nutr.2019;7(4):1157-1165. doi:10.1002/fsn3.799

National Institute of Diabetes and Digestive and Kidney Diseases.Your digestive system & how it works.

Centers for Disease Control and Prevention.Fiber: The carb that helps you mange diabetes.

Kapała A, Szlendak M, Motacka E.The anti-cancer activity of lycopene: A systematic review of human and animal studies.Nutrients. 2022;14(23):5152. doi:10.3390/nu14235152

Gonzalez AM, Trexler ET.Effects of citrulline supplementation on exercise performance in humans: A review of the current literature.J Strength Cond Res. 2020;34(5):1480-1495. doi:10.1519/JSC.0000000000003426

Johns Hopkins Medicine.FODMAP Diet. What you need to know.

Vlachos D, Malisova S, Lindberg FA, Karaniki G.Glycemic Index (GI) or Glycemic Load (GL) and Dietary Interventions for Optimizing Postprandial Hyperglycemia in Patients with T2 Diabetes: A Review.Nutrients. 2020;12(6):1561. doi:10.3390/nu12061561

American Diabetes Association.Fruit.

Silva-Néto RP, de Almeida Soares A, Augusto Carvalho de Vasconcelos C, da Silva Lopes L.Watermelon and others plant foods that trigger headache in migraine patients.Postgrad Med. 2021;133(7):760-764. doi:10.1080/00325481.2021.1922211

American Academy of Allergy Asthma and Immunology.Oral allergy syndrome.

U.S. Department of Agriculture.Seeds, watermelon seed kernels, dried.

El-Behairy UA, Tork EM, El-Gammal MH.Analytical study of the components of watermelon rind and evaluation of its use as a substitute for flour.American-Eurasian J Agric & Environ Sci.2022(3):119-125. doi:10.5829/idosi.aejaes.2022.119.125

USDA MyPlate.Fruits.

Meet Our Medical Expert Board

Share Feedback

Was this page helpful?Thanks for your feedback!What is your feedback?OtherHelpfulReport an ErrorSubmit

Was this page helpful?

Thanks for your feedback!

What is your feedback?OtherHelpfulReport an ErrorSubmit

What is your feedback?