It's funny, I've always considered watermelon to be a sweet fruit that must have a ton of sugar in it. It's actually quite low in sugar, and good for you too!
Watermelons are of course melons, and are called so because they are very juicy and full of water. They first came from Egypt and quickly spread arond the world. They grow generally in oval shapes, with a dark green rind and bright pink inside. They are related to other vine-growing melons / veggies like cantelope and pumpkins.
Watermelons have almost 25% of your daily vitamin C in a single cup, as well as 10% of your Vitamin A, B1 and B6. It has a lot of water in it, which is also really important for your health. Drinking / ingesting lots of water helps greatly with your body's functioning and losing weight!
net carbs: 11g
While I realize 11g isn't "zero" - it's also quite low compared to many other treats. With watermelon being so sweet, having great nutrition and being full of water, I consider this a great way to soothe that sweet tooth!
Lisa Shea's Library of Low Carb Books