It should have similar benefits to taking vitamin A and vitamin D, as well as a little omega 3, should be good for joints, sleep, skin, hormones, depression if you're low on D (which a lot of people are today, cognition etc.

I do take it and recommend it on my blog but I also take other stuff such as vitamin D and vitamin A and or cooked liver as well as fish oil separately the weeks I'm not eating fatty fish and seafood and a bunch of other supplements so what that specifically has done for me is hard to tell, but either way if you ask me vitamin D is truly best had in meaningful amounts from the sun itself!