If you're watching your waistline, don't forget to count what you drink.
When it comes to counting calories, nutrition experts say beverages are often ignored.
About 20 to 22 percent of calories of the average American, be it a pre-schooler, or a child or an adult, come from caloric beverages.
Professor Barry Popkin explains the added sugar in sodas, juice and sweeteners used in coffee and tea can result in weight gain.
"Today, we consume about on a daily average, an extra 220 calories a day in caloric beverages over what we consumed in the '60s. Every extra 10, 12 calories a day leads to a pound a year."
Popkin says popular drinks such as vitamin water and smoothies can also add to the calorie count.
"The benefits are marginal and costs in terms of...that's a whole lunch or dinner in some of these smoothies."
So what should you drink? The bottom line is, drink water, drink unsweetened tea and coffee, if you're an adult, if you're a child or an adult, if you want to drink milk, which children certainly need and all Americans can use, drink skim milk or one percent milk.
Ignoring liquid calories could be costly for your diet.