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Watermelon Lowers Blood Pressure (Bp)

by Institute for Vibrant Living

Did you know that watermelon can lower your blood pressure (BP)?

Food scientists at Florida State University conducted a pilot study on four men and five postmenopausal women - all of whom suffered from prehypertension - between the ages of 51 to 57 years.  Each of these subjects was daily given six grams of the amino acid L-citrulline/L-arginine - derived from watermelon extract - for a period of six weeks. 

Watermelon Lowers Blood Pressure (Bp) | Institute for Vibrant Living

L-citrulline is converted in the body to L-arginine, which is needed for the formation of nitric oxide (NO). NO is necessary for blood vessels to keep a proper tone and to maintain a healthy BP.

At the end of the pilot study, all nine participants showed improved arterial function and lower aortic BP - indicating that watermelon is effective against prehypertension, a precursor to cardiovascular disease.

L-arginine is available as a dietary supplement. However, it can cause nausea, gastrointestinal tract discomfort and diarrhea when taken regularly. On the other hand, eating watermelon causes none of those effects.

Study researchers say that watermelon dilates blood vessels, which may the underlying reason that it can prevent prehypertension from developing into hypertension - a major risk factor for heart attack and stroke.

Watermelon is the richest edible natural source of L-citrulline. It is also a good source of vitamins A, B6 and C as well as fiber, potassium and the antioxidant lycopene. 

A previous study had shown that L-citrulline supplementation slows the increase in aortic BP in response to cold exposure which, combined with hypertension, is associated with higher rates of myocardial infarction (MI).

Along with L-citrulline, high levels of potassium along with watermelon’s refreshing hydrating quality contribute to its beneficial effects on heart health.

Source: Watermelon lowers Blood Pressure (BP).

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