gelatin and joints

I read somwhere there was reason to believe gelatin was good for joint health. I found only one study on the subject, it was positive but was also run by a company selling gelatin supplements...IOW I have really no idea whether or not it's useful.

Anybody here tried it with some results??
I ask because all the heavy pressing, tricep work and grippers I do these days seems to take its toll on my elbows. I'm also considering buying glucosamine. What else would be good? Contrast baths? Tiger balm? Deep cold? Elbow wraps? What?

 

I take MSM powder.
I buy Organic Beef Gelatin, I use it when I am cooking. I don't notice any difference in anything. I never have joint pain though. I do use it for that reason though, since I read up on it as well.