As one of the most nutrient-rich fruits, guava has become a popular choice among those looking to improve their overall health and wellness. In this article, we'll explore the potential of guava to help manage diabetes and its other health benefits.One small cup (100 grams) of guava contains 30 kcal. Guava contains 70% carbohydrates, 20% protein, and 10% fat. They are a good source of copper and an excellent source of vitamin C, and dietary fiber. It is low in calories making it an ideal anti-diabetic food to be included in the diet.