I think more than at home, because you are eating out for breakfast, lunch and dinner, you should be even more aware of your intake. When cooking at home you usually add less salt, sugar and fat than they do in restaurants, it can add up easily.
Drinking calories is the most useless thing as you do not get any nutrients and the amounts of sugar are atrocious. If you are a soda drinker or juices, switch some out for water.
If you do table service every day, do you need a starter, main and dessert at every meal?