Bests & Worsts Reviews from Amazon

First, I don't write many reviews. Other Amazonians do such a great job. Second, I don't take vitamins or any supplements, rarely even scrips. I'm 54. I moved last year, to an area that lets me walk a lot (3-4 miles a day). And my house is 3 stories, I work at home, so I am up and down a lot of stairs every day. After being here for a few months, my hips started hurting me. My first trip down the stairs in the morn, I had to take one step at a time, because my knees were stiff and painful. I was worried perhaps I had arthritis. Went to the doc. He said it was probably due to not stretching enough. I met up with a friend I hadn't seen for two years, and he was horrified how hard it was for me to get in and out of the car, do a short hike, etc. He told me about this product, that it worked for him, and several others he had recommended it to. I wasn't too hopeful but thought I'd give it a try. After one week, I feel like a new person. I feel like the first trip down the stairs is a good "control" for me, I know what it was like, and now how it is. This isn't placebo effect. And it isn't just my hips/knees that are better. My back feels better too. I have had lifelong back problems. So although I think most vitamins/supplements are bunk, what can I say, this is working and really making a difference for me.