I take it - and my doggo takes it. She has not reported back on the benefits, but in spite of being a senior and having a bad heart, she charges up and down the stairs. (To be fair, she also gets glucosamine & chondroitin supplements for her joints.)
I notice a mild benefit - if I take it consistently for at least six weeks, and don't do anything stupid to counteract it (such as stay up all night or eat garbage). I take unflavored in a powered form. (The benefit that I notice is in the appearance of my skin.)
