I love this topic as I believe our health is highly, highly impacted by diet and certain supplements are better than prescribed meds or great preventative measures.
I take a lot of the same regiment, but have a 10,000 IU D3 pill that includes 100mcg K2, 20mg Zinc, 3.4 mg B6 and a little magnesium.
Vitamin C in a time released form is also good.
My current conundrum is taking atorvastatin. It lowers my cholesterol, but also feel it creates joint/muscle soreness. Which my doctor (and a lot of doctors) discount as not being related to taking the statin. There is a lot online that anyone taking a statin should also take CoQ10. I have tried CoQ10, but hard to tell if it had an impact on my muscle soreness.
The other supplement that seems to be trending for general use is creatine. Haven't gone there yet and done much research.