why is pizza unhealthy....alone it's bread, cheese and tomatoes........?

it's fatty and usually has too nuch sugar and salt in it. Frozen pizzas are the worst. Just look at the back carton of one. You're almost better off eating lard sugar, salt, and preservatives by the spoonful,

Many frozen pizzas also contain trans fat, which is the most unhealthy kind. It raises your cholesterol levels, which can lead to heart damage. A slice of cheese pizza contains 17.9 grams of fat, of which 6.2 grams are saturated. - copied from google

it seem like all food are unhealthy

Bread is full of carbs and cheese is full of fat.

Erm...it's not unhealthy unless you eat it all the time

White refined flour, loads of cheese, greasy, frozen, preserved.

Too much bread and grease

Because it tastes good

It's not ..unless your stuffing your face with it constantly..! ~*

Fresh pizza the way it was invented in itally is very good for ou for that reason. In america we often make it with a higher grease content.