Benefits and Side Effects of Eating Watermelon
Watermelon is a fat-free fruit and is a good source of Vitamins A, B6, and C. It also contains Potassium and the antioxidant plant phytochemicals lycopene and citrulline. Lycopene is what gives watermelon the pink, bright red, and sometimes deep red color.
Lycopene is a very strong antioxidant.The mineral potassium can help lower blood pressure and also aids the proper functioning of all body organs. The phytochemical citrulline benefits the heart and circulation.
It is estimated that 1 1/2 cups of watermelon contains between 9 and 13 grams of lycopene. A cup of watermelon contains 50 calories, 15 mg Vitamin C, 585 IU Vitamin A, and 186 mg potassium.
With all this in mind, watermelon is a healthy fruit that can give rise to side effects if eaten in too much abundance.
Negative Effects of Over-Eating Watermelon
Nausea and vomiting
Mild or severe rash
For insulin-resistant people, may elevate blood sugar and triglyceride levels
Weak or absent pulse
Facial swelling or anaphylaxis
Bloating, gas, and indigestion
In extreme cases, cardiac arrest
May effect those with allergy to latex, carrots, or cucumber
It has been found that consuming 30 mg or more of lycopene per day can cause side-effects. This include:
- Intestinal disturbance
Excessive consumption of lycopene rich watermelons can cause symptoms like nausea, vomiting, diarrhea, bloating, gas and indigestion. This can be more serious for the elderly, as their digestive systems are more sensitive due to age.
- Cardiovascular Problems
Watermelon contains very good quantities of potassium. Three cups of watermelon contain about 560 mg of potassium. However, high levels of potassium in the blood can cause cardiovascular problems like irregular heartbeats and weak or absent pulse. High potassium levels can also affect the nervous system and motor control. This is all the more important for those who suffer from kidney dysfunction, as their kidneys are unable to remove the excess potassium.
- Allergic Reactions
Some people may develop allergic reactions to watermelon consumption, which can result in mild to severe rashes, facial swelling, or anaphylaxis. Those suffering from allergy to latex, carrots, or cucumber may be more prone to watermelon allergy.
Benefits of Eating Watermelon
- Viagra-like Effect on Men
Citrulline in watermelon is converted into the aminoacid arginine by the body. This increases the nitric oxide levels, which in turn has a relaxing effect on the blood vessels. A study done at Texas A&M University shows that this relaxing effect on the blood vessels is similar to what the active drug in Viagra, sildenalfil, causes. Thus, consumption of watermelon may enhance libido.
- Reducing Blood Pressure
In those with prehypertension, watermelon consumption may help lower blood pressure. A study conducted by Florida State University indicates that watermelon also improves arterial health and its function. The arginine, that is the result of citrulline conversion, gives this beneficial effect.
- Oral L-citrulline supplementation improves erection hardness in men with mild erectile dysfunction.
Urology. 2011 Jan;77(1):119-22. doi: 10.1016/j.urology.2010.08.028. Clinical Trial
- Effects of Watermelon Supplementation on Aortic Hemodynamic Responses to the Cold Pressor Test in Ob
- Potassium | University of Maryland Medical Center
- High potassium level: MedlinePlus Medical Encyclopedia
- Potassium in diet: MedlinePlus Medical Encyclopedia
- High Potassium Food List - Foods Rich in Potassium
Learn why potassium is important, why you may need to change your diet, what foods are rich in potassium, and how much potassium is in each food.
- USDA ARS Online Magazine Vol. 50, No. 6
- Lycopene | Memorial Sloan Kettering Cancer Center
- Dietary Supplementation with Watermelon Pomace Juice Enhances Arginine Availability and Ameliorates
- Metabolic Syndrome - National Library of Medicine - PubMed Health
A grouping of health conditions associated with an increased risk for heart disease and type 2 diabetes. Conditions include hypertension, a large waist, high triglyceride levels, low HDL cholesterol levels, and above-normal blood glucose levels.
- Effects of watermelon supplementation on aortic blood pressure and wave reflection in individuals wi
Am J Hypertens. 2011 Jan;24(1):40-4. doi: 10.1038/ajh.2010.142. Epub 2010 Jul 8. Randomized Controlled Trial
The information provided in this article is not a substitute for professional medical advice. Please consult your physician or health care provider before taking any home remedies, supplements or starting a new health regime.
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Watermelon Benefits Libido
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