A sugar packet contains approximately 4 grams of sugar and 16 calories. A packet of sugar is equal to both a standard sugar cube and a teaspoon of sugar.
The suggested daily intake of sugar is 32 grams, which is equal to 6 percent of the recommended daily calorie intake and six sugar packets. There are sugars that occur naturally in foods such as milk, fruit and vegetables. These sugars contain other nutrients that benefit the body. Processed sugars that are in foods such as Fruit Loops, ketchup and syrup are considered bad sugars because they have no nutritional value.