Eating watermelon regularly may help promote health: Study

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Although more research is needed, favourable effects on lipids/lipoprotein metabolism are emerging

According to a new comprehensive review of the scientific literature on watermelon by Illinois Institute of Technology in the US, eating watermelon regularly may help promote health.

As per the research, watermelon contains essential vitamins, minerals, antioxidants and amino acids. It also contains the amino acids citrulline and arginine, which both act as a precursor to nitric oxide, a molecule that plays a role in blood pressure regulation, lipid reduction and glucose control.

Polyphenols and carotenoids, particularly lycopene, are also abundant in watermelon. The nitric oxide benefits of citrulline and arginine coupled with the bioactivity of polyphenols and carotenoids found in watermelon suggests that this fruit may support normal cardio-metabolic health.

The investigators concluded that watermelon provides a combination of nutrients and phytochemicals working across multiple mechanisms to induce biological effects. Citrulline and arginine are central to these cardio-metabolic effects, and polyphenols, lycopene, potassium and magnesium contribute as well. 

Continued research is needed to determine the level of sufficient intake for clinical outcomes and will also need to be studied in a variety of populations.

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