Research has shown the following health benefits for MSM:
Overall health and appearance.
Free moving joints and muscles.
Immune system function.
Hair and hoof growth.
Lung function.
Shorter recovery times following exercise.
a pony on our yard went lame a few months ago, vet said arthritus in hock.... owner started to feed msm and within a month was sound and has been since, touch wood!
It's not as scientifically backed as other compounds however the practical results for its use speak for themselves. It definately holds huge benefits as an anti inflammatory and pain reliever, as well as overall health benefits including lung function.
like anything it may work better on some conditions compared to others and on some horses compared to other horses.
I aked my vet what he thought about MSM, he replied:
'Whats MSM?'
Sort of speaks for itself....
ETS: I do have some MSM cream which is brill, but I think thats mainly due to the consistency than anything else.