Comment by jdietrich

It doesn't make a blind bit of difference. As long as you're a) not obese, b) not eating too much sugar and b) eating reasonable quantities of vegetables, everything else is a rounding error. Read just about any study on nutrition and you'll see negligible effect sizes at the very cusp of statistical significance.

All of the confusion about what we're supposed to eat derives from this simple fact. We've got all sorts of data suggesting that this diet or this food might be good for you, but the effect sizes are too small to care about.

If you obsessively tweak your diet based on every little scrap of data, you might possibly earn yourself three or four months of healthy life expectancy compared to a diet that your great-grandmother would recognise as being sensible. It's just not worth the effort.