How Many Meals Do The Romans Eat Each Day?

Romans would usually have had three meals a day, much like most of the western world does now.
Breakfast (ientaculum), taken around 9am, and lunch (prandium) at noon would both usually be small meals, more like snacks.
The only real hearty meal of the day would have been dinner (cena) in the late evening.

Well, Roman Legionaries on the march or on campaign would eat a large helping of oatmeal in the morning along with some other food; and just eat lightly for the next 2 meals or when on the march. Breakfast was the most important meal of the day(for a soldier). It was different in the city, they probably fared lighter; caloric intake would change quite a bit depending on certain situations and circumstances; people have their own attitude towards food, back then everyone wouldn't eat little meals, sometimes they would have large feasts and eat lots.  Ancient people were healthy because of the absence of sugar and other unnecessary junk.