There is no money to be had and no patents to file for vitamin d.
If the CDC launched a national effort to get Americans outdoors to exercise (Surely a lot cheaper than the stimulus we spent money on) hundreds of thousands of lives would have been saved, not only from COVID but from diabetes and heart disease.
https://www.foxnews.com/health/michelle-obama-responds-to-ba...
Telling people "just get fit" doesn't work.
Please note that I'm not knocking on subsidies as a concept but the sugar subsidies which enable the low cost diet in the US.