Introduction: The Truth About Calories (02:16)
Consumers are obsessed with the calorie content of store bought foods. Van Tulleken sets out to test the accuracy of product labels.
What is a Calorie? (00:52)
Hear answers from people on the street.
Energy Source of Calories (03:24)
Van Tulleken visits a potato farm, apple orchard, dairy and meat plant to illustrate our diet of fats, proteins, and carbohydrates.
Counting Calories (03:47)
The calorie per gram of fat is more than double that of carbs and proteins. Calories in foods that have a variety of ingredients are difficult to calculate. Average values are used for ready-made meals.
Independent Testing (03:45)
Foods are blended into a paste for analysis. The actual calorie count varied on most products by up to 10%, within government guidelines.
How Many Calories Do We Need? (02:33)
The average man need 2500 calories daily; the average woman needs 2000. Two thirds of British people are overweight.
The Big Calorie Challlenge (05:10)
For this experiment, three families have identical 600-calorie breakfasts. Members wear calorie burning monitors and engage in one of three activities.
Experiment: Burning Food Energy (04:22)
See how much of various foods it takes to total 600 calories. Liquid oxygen is poured on several foods to release their energy before they are set afire.
Digestive System (02:33)
See a human stomach and small intestines, which measures 6 meters. Only half the calories of fiber rich foods are absorbed.
The Big Calorie Challenge: Results (04:20)
The exercising family more than burned off their breakfast calories. The sedentary family burned calories relative to their size. The housecleaning family burned more than their breakfast calories.
Cutting Calories in TV Dinner (03:47)
Van Tulleken learns how chefs reduce the calories of a favorite British meal. Carrots and parsnips replace some of the potatoes. Heavy cream is used instead of butter.
Tricks to Reduce Calories (07:28)
In this experiment, Chefs make adjustments to a popular 1800 calorie meal to see if restaurant guests will notice. It takes more energy to burn calories from a rare steak.
Calorie Reduction Results (01:44)
Diners learn their meals were reduced by 360 calories.
24 Hour Calorie Intake/Burn (04:41)
Follow Van Telleken for 24 hours as he attempts to see if he can match his consumed with his expended calories.
Credits: The Truth About Calories (00:49)
Credits: The Truth About Calories
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