245 calories (1025 kilojoules ).

Chicken McNuggets also contain the chemical tBHQ, which is found in only 0.02% of each chicken nugget. tBHQ is a preservative derived from petroleum and is used in vegetable oils and animal fats.

According to the recommendations of the Chinese Nutrition Society, four McNuggets of Chicken McNuggets for every 100 grams (of McDonald's) is about 10 percent of the total calories needed by adults to stay healthy each day.

Number of calories the body needs in a day:

The daily calorie requirement is related to gender, physical activity, and weight size. Lightly active women generally need 1500-2000 kcal per day, and lightly active men are 2000-2400 kcal. In the nutritional labels of daily purchased foods, the "standard percentage of daily requirement" is calculated based on a 2,000-calorie diet, and 2,000 calories is the approximate average of people's daily dietary intake.

But a person's body may need more or less than 2,000 calories. Height, weight, gender, age and activity level all affect calorie needs. When calculating how many calories the body needs each day, three main factors are considered: basal metabolic rate, physical activity and the thermic effect of food. Basal metabolic rate accounts for about 60 to 70 percent of the calories burned in a day.

Physical activity is the second most important factor in calorie consumption and includes all activities of the body; the thermic effect of food is the energy used to digest the food eaten.