Maybe. Osteoarthritis is the wears and tears of the body. Anything that will put extra stress on the joints/bone/body can cause osteoarthritis, for example, weight gain with diabetes, thyroid or endocrine problems.
Acidic body type. Acidic body is the cause of sickness the common factor for arthritis, diabetes, thyroid and endo problem. Know how to reset the body pemf session can immediately alkalinize body. The other ways are taking chlorella, aloe vera, eating more green and live food than animal protein. You can test your urine pH which should stay between 6.8-7.0 need extra d3 for first 6 weeks to normalize ph.
No. Diabetes can cause certain arthritic issues but not osteoarthritis.