I take both - basic vitamin/supplement package, omega 3, collagen, and calcium* (*taken separately from the pred). I'm on 10-12 mg of Prednilosone currently. I thought they were ok to take but I've suddenly found some posts that say no...my thought was that anything to boost immunity while on steroids was a positive thing?? All of them are from Arbonne, which has no artificial additives and is all plant-based... high quality products... Has me wondering now, because the Hamster cheeks have arrived in all their glory - 6 mos into me being on the steriod Asked doc why now and he said, no reason. Just did.