How much vitamin D is in salmon?

It depends on the type of salmon it is.

Commercially farmed salmon has very little vitamin D, while wild salmon has quite a bit of vitamin D.

Wild salmon eat many aquatic plants and animals that are rich in vitamin D. Farmed slamon are fed garbage feed pellets not fit for any animal and the feed contains little vitamin D.

Wild salmon is fine for vitamin D. Farmed salmon is a waste of money.