In his most recent book, In Defense of Food, Michael Pollan sums up his advice with seven words:
Eat food. Mostly plants. Not too much.
I find it most worthwhile that he provides something to carry away and use once the book has been set down.
I suggest that full expression of what he says in the book is achieved with these changes:
Eat food. Mostly plants. Just enough. Enjoy.
Not too much has that negative connotation that the amount is finite and likely requires an expert to tell us what it is; just enough suggests the amount is within our control and choosing.
Enjoy. Let food be a pleasure. With this as the focus all else falls into place.