Today, they're 12 inches across. A bagel used to be the size of a hockey puck and contained about 140 calories. Now bagels are up to six inches in diameter and house a whopping 350 calories - and that's before cream cheese. When McDonald's began serving hamburgers, the patty weighed about two ounces. Since then, it's more than quadrupled in size for the largest offering. Pancakes can take up the entire plate these days; in reality, one should be about the size of a CD. The size of food has been indirectly related to the size of Americans' waistlines. There are double the amount of people whose BMI qualifies as "obese" than there were 20 years ago. Pass on the supersizes in place of proper portions.