I am curious as to the bolded statement in this post.
Potassium is present in very small amounts in supplements. The FDA does not allow a potassium supplement beyond 99mg.
Some natural foods have whopping potassium levels in them.
The amount of potassium we require daily is 4.5 grams --that is 4500mg. If you are on a drug with a potassium restriction, that would be ACE inhibitors. Some forms of kidney disease, also have potassium restrictions. But the general public is basically low in potassium intake and it can be a serious health problem. The daily intake suggestions have been RAISED recently from 3.5grams a day to 4.5. It has been estimated that we evolved as humans consuming up to 7.5grams a day! You can check the content of your food choices here:
www.nutritiondata.com
This website will list the contents of most foods so you can see which are beneficial and which are rather empty. They also rate the inflammatory index for each food.

Vitamin C is an important antioxidant for supporting the joints and ligaments, as well as for quenching free radicals. Vit C has shown promise in preventing the sympathetic neuropathy called RSD which can occur after an injury or surgery. If regular Vit C bothers you, the Ester form is easy to take. We cannot live without Vitamin C, so I am concerned as to why you need to limit this. Some patients with the genetic disease hemochromatosis are advised to limit Vit C so as to absorb less iron from foods. That is the only restriction I can recall at the moment.