I'm currently taking Flax/Joint Formula/Omega-3/Zinc/Multi/B-5/Idebanone/Paravol/Leviathan in addition. Joints feel good right now and have felt good for a while. The only time I ever had joint problems was when I took Pheramax. I took it for two weeks and my joints hurt so bad I had to stop. If I had strength gains I failed to realize it because I was in hurting and lathargic too.