Calories measure the quantity of energy found in food. The number of calories required per day for a 40-year-old woman depends on her height, weight, activity level and other factors.

A turkey club is typically made with three slices of bread spread with mayonnaise and layered with turkey, bacon, lettuce and tomato. The calories will vary depending on the ingredients used and how much of each ingredient your turkey club contains.

Calorie needs differ among individuals, and the exact number you need to maintain your weight depends on your age, activity level and body composition. Although only medical testing can precisely determine your daily calorie expenditure, you can get a workable estimate with a quick activity assessment.

Prosecco is a bubbly, sparkling wine named after the Italian white wine grapes used in its production. Similar to Champagne but lighter and sweeter, Prosecco has a fruity flavor and aroma that pairs well with salty appetizers or snacks, light pasta dishes, seafood or poultry.

The number of calories in a plain bagel with cream cheese depends on the size of the bagel, as well as on the amount of cream cheese you use. Because cream cheese is high in fat, going overboard can make the calories add up quickly.

Made with tangy tomatoes and fresh basil, bruschetta topping is loaded with flavor but very short on calories. Trouble can start, however, if you prepare the bruschetta's toast base with too much butter or oil.

As you age, your metabolism slows so that you need fewer calories than you did when you were younger. Each decade after age 20, your daily energy needs may decrease by as much as 150 calories, according to the American Council on Exercise.

The number of calories you should eat at dinner depends on your total daily calorie needs, as well as how much you eat at other meals. Estimated calorie needs range from 1,800 to 3,000 per day, according to the U.S. Department of Health and Human Services.

Although ice creams provide varying amounts of essential nutrients, including calcium, phosphorus and vitamin A, they aren't exactly health foods. They typically contain large amounts of fat and sugar, which makes them energy-dense foods.

There are specific amounts of calories needed to support metabolic activity in a day. There are also suggested amounts of calories needed per pound for the body to function at optimum level.

The exact number of calories in your peanut butter and jam sandwich probably varies from day to day. Unless you're measuring the exact amount of peanut butter and jam before spreading them onto the bread, there is no way to know exactly how many calories you're eating.

Next time you're in the mood for a fizzy beverage to celebrate a special occasion, you may want to consider a wine spritzer instead of sparkling wine. Sparkling wines, such as Champagne, Prosecco, lambrusco and vinho verde, aren't exactly low in calories.