London, April 28 :
According to a recent study by Italian researchers, citrulline amino acid in watermelons improve blood flow and can alleviate erectile dysfunction.
Our bodies use citrulline to make yet another amino acid called arginine, which has viagra-like effect. Arginine boosts nitric oxide which relaxes blood vessels – the same basic effect that viagra has.
Extra nitric oxide can also help treat angina, high blood pressure and other cardiovascular problems, the study noted.
The juicy fruit is 92 percent water, eight percent sugar, a great source of vitamin C and only 71 calories per serving.