The fruit is low in calories (provides 70 calories/100g) and fats but is rich source of dietary fiber.
Persimmons contain health benefiting phyto-nutrients flavonoid poly-phenolic anti-oxidants like catechins and gallocatechins as well as important anti-tumor compound betulinic acid. Catechins are known to have anti-infective, anti-inflammatory and anti-hemorrhagic (prevents bleeding from small blood vessels) properties.
Fresh persimmons contain anti-oxidant compounds like vitamin-A, beta-carotene, lycopene, lutein, zea-xanthin and cryptoxanthin. Together, these compounds functions as protective scavengers against oxygen-derived free radicals and reactive oxygen species (ROS) that play a role in aging and various disease processes.
Zea-xanthin, an important dietary carotenoid, selectively absorbed into the retinal macula lutea in the eyes where it is thought to provide antioxidant and protective light-filtering functions; thus, helps prevent "Age-related macular related macular disease"(ARMD) in the elderly.
They are also a very good source of vitamin-C, another powerful antioxidant (especially native Chinese and American persimmons; provide 80% of DRI). Regular consumption of foods rich in vitamin C helps the body develop resistance against infectious agents and scavenge harmful, pro-inflammatory free radicals.
The fruit is good in many valuable B-complex vitamins such as folic acid, pyridoxine (vitamin B-6), thiamin...etc. These vitamins act as co-factors for numerous metabolic enzymatic functions in the body.
Fresh Persimmon fruits also contain healthy amounts of minerals like potassium, manganese (15% of DRI), copper (12% of DRI), and phosphorus. Manganese is a co-factor for the enzyme, superoxide dismutase, which is a very powerful free radical scavenger. Copper is a co-factor for many vital enzymes, including cytochrome c-oxidase and superoxide dismutase (other minerals function as cofactors for this enzyme are manganese, and zinc). Copper is also required for the production of red blood cells.