One slice of pizza ordered at restaurants or food takeaways usually has at least 300 calories, so it doesn't take long to eat most of your day's calorie needs in one sitting. Interestingly, since it is also difficult for many people to estimate portion sizes for wedge-shaped foods, overeating can be very easy.

We don't typically think of pizza as a component of a healthy diet because it is high in total fat, saturated fat, sodium and calories. This is important to remember when planning family menus because high-fat diets lead to being overweight and obese.

If you do order a pizza at a restaurant or pizza takeaway, be sure to eat a healthy green salad first so that you feel fuller before indulging - and don't end up ... Read more »