The Effects of Watermelon

The Effects of Watermelon
Photo Credit A watermelon martini with a watermelon slice image by David Smith from Fotolia.com

Watermelon is 92 percent water, according to KidsHealth, and contains more lycopene than any other fruit or vegetable. The American Dietetic Association states that watermelon is a good source of potassium and also contains vitamin C. This fruit is a favorite treat in summer and carries many health benefits thanks to these and other vital nutrients found in its sweet, pink center.

Effects of Lycopene in Watermelon

Lycopene causes watermelon to take on its pink tint, according to KidsHealth. It has antioxidant and antiproliferative properties, explains MayoClinic.com, and also has been linked to reduced incidence of cancer, heart disease and macular degeneration.

Effects of Potassium in Watermelon

Potassium is an important part of any diet because it helps to normalize blood pressure, according to the American Dietetic Association. It also helps the body keep a normal water balance between the body fluids and the cells, is needed in order for cellular enzymes to work correctly and contributes to nerve stimulation and muscle contraction.

Effects of Vitamin C in Watermelon

Vitamin C, which also is contained in watermelon, is an antioxidant that is essential for growth and development and can boost the immune system. This vitamin helps to form collagen, a protein used to create ligaments, scar tissue, skin and blood vessels; it also works to repair wounds and helps to maintain healthy cartilage, bones and teeth, according to Medline Plus. This vitamin is not produced naturally in the body and is not stored. It must be obtained through eating foods such as watermelon or supplements that contain vitamin C.

Research on Health Effects

Watermelon is being studied for additional possible health effects. One such study, published in the "American Journal of Hypertension" in 2010, suggests that watermelon can be a tool in the fight against prehypertension, a precursor to heart disease. Researchers gave subjects the amino acid L-citrulline/L-arginine, derived from watermelon extract, daily over a period of six weeks. At the conclusion of the study, researchers found that patients had improved arterial function and lowered blood pressure.

In a study from 2008, researchers found that watermelon might stimulate libido. When researchers tested the blood flow effect of watermelon and compared it with certain erectile-dysfunction medications on the market, they found a strong correlation. Watermelon isn't as organ specific as these medications, but the increased blood flow is a helpful benefit without a medication's side effects.

References

Article reviewed by Shawn Candela Last updated on: Apr 3, 2011

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