I'm a 56 yr old female, I've been athletic and active my entire life. As I aged, I lost desire to keep moving & working out due to less energy, aching joints and sore muscles. I began taking the OGF approximately 10 yrs ago (Dr. Keller was still alive). While taking this product I'm back to working out 5-7 times a week, have more energy, feel more alert, aching joints are thing of the past, and I haven't had a cold, flu, sinus infection or UTI for years. I'm not saying this stuff cures anything. What I believe it has done for me is, help keep the inflammation at a minimum so my body can work better to keep my immune system stronger. I highly recommend this product!!