Millions.
Lee said there was not enough trial evidence to show whether or not eating more oily fish is beneficial – although she suspected it probably is.
So fish-in-a-capsule isn't effective, but a fish probably is.
Have antioxidants or supplements containing isolated vitamins and minerals have ever been shown to be more effective than nutrients and other components in whole foods ?
They are usually more balanced and may be more biologically active and able to survive digestion, etc. As others have said, it is the entire diet and the way the nutrients in real foods are combined that is likely to be most important,
.