Wish they had an s on the end. They're a little awkward without it. Because of that I'm sorry to say maybe low xx. Good luck in your partnership w/ zzzw. Let us know how it goes.
Interesting.. the s on the end makes the food one seem awkward to me.. I don't think of food types in terms of foods I guess.. it has always just been food.. I can see that for diet vs diets though if thought of in the terms of dieting but if thought of as in nutrition and health I still would just use diet without the s.