Originally Posted by
Cdsnuts
In the beginning, 10,000 iu daily is fine as most men are completely depleted at this point. As you go along in your journey, you can lower that to 10k iu a few times a week. If you're really concerned you can always get your levels tested, but imo, it's un-necessary. My thoughts are, well, seeing as I've supplemented with well over what they say is "safe" it's not an issue.
Think of the source. Who is saying what the "safe" level is? The same people who say fin is safe to take, or that artificial sweetener is okay? I could go on and on, but you get the point.