So, when author Jamie Oliver says to use low- or non-fat Greek yogurt for a lighter dressing, we listen. One reviewer calls it their new “go-to” salad, describing the dressing as “bright, garlicky, ...

Few foods are as healthy and versatile as yogurt. But what’s better? Greek yogurt or Icelandic? Dairy or oat or almond? Nonfat, low-fat or whole-milk?