I take 1000 mg Carlsons Norwegian liquid D daily and have every morning for at least 20 years. I believe equality counts, plus I’m a very small person, don’t think I need as much as a very large person. Considering all that, I’m probably a D overachiever. But could up dosage if I believed I should.
In the last 20 years, I had one five-day cold, took chlor-trimeton, cheap OTC tablets my Rite Aid carries.
That sounds like a very hefty dose, The capsules I take are 50 mcg (micrograms) which is 2000 IU.