Yes. In fact, you can eat anywhere: up a tree, down a manhole or in the bath.
It’s not where you eat that counts, it’s what you eat.
So if you’re in a restaurant, choose something low-fat. A plain steak and salad is okay. So is fresh fruit salad. If you can’t see anything suitable, then ask!
But if you are the type of dieter that is tempted by fatty or creamy restaurant foods, you should make dining out an occasional experience only.
Alcohol, tempting food smells and dessert-trollies will only lead you astray.
Indeed, the wide range of restaurants and dining out opportunities in America, is believed to be a reason why so many Americans are overweight.