Chocolate chip cookies are well-loved by Americans. The Gourmet Chocolate Chunk Cookies from the Costco bakery are large and full of chocolate, making them a favorite. Be careful, though, because they're also full of fat and sugar.

One 46 g cookie contains 210 calories. It has a total of 11 g of fat, including 5 g of saturated fat, 10 mg of cholesterol and no trans fat. The carbohydrate total is 27 g with 16 g of sugar.

Ninety-nine calories, 47 percent of the total, come from fat. Twenty to 35 percent of your calories should come from fat, states MayoClinic.com. It also contains one-third of the saturated fat you should eat in a day as advised by MayoClinic.com.

MayoClinic.com advises that 45 percent to 65 percent of calories come from carbohydrates and added sugar should be kept to a minimum. Fifty-one percent of this cookie's calories come from carbohydrates, but 59 percent of those calories are from sugar.

This cookie contains 10.5 percent of your calories for a day assuming a 2,000-calorie diet. Those calories are also high in fat and sugar, suggesting this cookie should be enjoyed in moderation.