I bought some beautiful persimmons today, and I was curious about the nutritional values, and I found this website:

http://www.nutrition-and-you.com/persimmon-fruit.html

From the site:
"Persimmons contain many 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."

I don't know if this will help arthritis, but they're so good even without an excuse to eat them.