Nutrients are present in all the fruits but in different quantities. Hence, it is essential to be aware of the nutritional value of fruits before we add them to our health routine. Japanese Persimmon vs Longan Nutrition will help you choose the best fruit among the two. Carbs in Japanese Persimmon and Longan are 18.59 g and 15.00 g respectively. The protein content of Japanese Persimmon and Longan is 0.58 g and 1.30 g. Protein to carb ratio of any fruit must be approximately 1.34. Protein to carb ratio of Japanese Persimmon is 0.03 and in Longan, it is 0.09. Nutritional value of fruits is incomparable to other food items. They provide all the vital nutrients required for proper functioning of our body.