ONE Orange is 90 mg of Vitamin C which is close to your daily requirement. Vitamin C is good for those Arthritis pains and you feel better when it is taken in through food instead of supplement form.
Also Oranges have folic acid. The folate will slowly be released in a steady controlled process because of the fiber. If you are feeling down/depressed the serum levels of folate will bring you up along with increasing your brain health.