OP: Allopathic MD's offer 50K IU's of the D2 to their patients, it's a script.

I personally take 5K and 10K IU D3's and K2 during the week. I alternate doses. It is easy, why bother with injections. I think I even saw a 50K IU of D3 somewhere but I don't think it's a good idea to blast the body with such higher doses ... lower doses every day makes sense to me, but we often need a good jolt if D levels are really low.