 independently funded human studies directly examining watermelon's effect on heart health have not shown measurable improvements watermelon is not a magic bullet so dr ellis who led one of the studies it's not going to displace blood pressure medication or anything like that but it's incorporated into a diet with nutrient dense foods it may be a good thing for vascular health watermelon doesn't lend itself well to canning drying or freezing dr slavin said so it's harder to enjoy out of season she thinks that's one of the reasons that the fruit is so loved another thing i've noticed