EP237: Papaya & My Blood Sugar | Summer Fruit Series - The Sugar Spike Show . I love fruits and have them daily — in the middle of the day or even as dessert after meals. But right now, I have no idea which ones are spiking my sugar levels a lot and which ones are spiking less. This series should shed some light on that… let’s see what happens! . Summer Fruit Series Schedule: 1. Mango = 40mg 2. Watermelon = 39mg 3. Muskmelon = 27mg 4. Jamun = 32mg 5. Plum = 31mg 6. Lychee = 65mg 7. Cherries = 50