According to health and nutrition writer Bridget Coila for SFGate, a cup of watermelon contains less than a gram of fat. One cup of watermelon also contains 11 grams of carbohydrates and only 46 calories.
Dogs can eat watermelon, but they should not consume the rind or seeds. Owners should consult a veterinarian before giving their dog a new treat of any type, including fruit.
Although watermelon is available year round, domestic watermelon is in its peak season from May through August. Imported watermelon is in its peak season from March through May.