ORANGE : Sweetest medicine. Taking 2-4 oranges a day may help keep colds away, lower cholesterol, prevent & dissolve kidney stones as well as lessens the risk of colon cancer.
WATERMELON: Coolest thirst quencher.. Composed of 92% water, it is also packed with a giant dose of glutathione, which helps boost our immune system. They are also a key source of lycopene - the cancer fighting oxidant. Other nutrients found in watermelon are vitamin C & Potassium.
GUAVA & PAPAYA: Top awards for vitamin C. They are the clear winners for their high vitamin C content. (Now, this is news to me too). Guava is also rich in fiber, which helps prevent constipation. I remember being advised against eating the guava seed- not sure why but I still enjoy guavas - red, white and all the seeds inside. Guava juice is yummy too.
Papaya is rich in carotene; this is good for your eyes. (Papaya, as you can see from the picture is the same thing as Pawpaw) I also found out that: Pawpaw/Papaya's "antioxidant content is higher when fully ripened and soft. It may be helpful for the prevention of atherosclerosis and diabetic heart disease due to the fact that they are an excellent source of vitamin C, vitamin E and vitamin A, through its concentration of pro-vitamin A carotenoid phytonutrients."*
There are so many other fruits...and I believe that God expects us to take Him literally too when He commanded us to "be fruitful"** (i.e. full of fruit). So I encourage you to try out different ones available where you live (or visit). You can also research and share the benefits of those fruits with the rest of us...and "multiply"** the knowledge.