I would recommend eating lightly for a few days before you hit the Amana Colonies because unless you have willpower of steel, you're bound to be carrying a little extra around the waist when you leave. You'll find the German cuisine here served family style, hearty, and yummy. Be sure to try the wiener schnitzel and sauerbraten (my favorite). On the good news side of things, if you visit all the neat Amana stores, you'll be doing quite a bit of walking so hopefully things will even out in the calorie area before you go home
In Amana you can eat at the Colony Cone, the Ronneburg Restaurant, Amana Stone Hearth Bakery, the Colony Inn Restaurant, the Amana Barn Restaurant, and my favorite, the Ox Yoke Inn.
Homestead has Bill Zuber's Restaurant & Gifts. Middle Amana has the Pizza Factory & Grill; and Little Amana has the Seven Villages Restaurant and the Ox Yoke Interstate..
Don't worry when you're about to head for home. You can take some of the delicious meats, pastries, and fruit wines home with you. But learn from my experience. Take more than you want, because once family and friends discover what you brought back, you'll probably be expected to share!