Yes.
No.
Oxygen does not contain calories because it is not a source of energy for the body.
Calories are a measure of heat energy. Eating foods that contain calories allows your body to expend energy and to maintain body temperature. Excess calories are stored as fat.
Wood itself does not contain calories because it is not a food source that can be digested by the human body.
Milk contains calories which give you energy. Water doesn't contain calories.
Food does NOT contain energy , it is converted to energy in the body as in calories
Water does not contain any calories
Urine is not inherently toxic; it is a byproduct of the body's waste removal process. However, urine can contain waste products and toxins, such as urea and ammonia, which need to be eliminated from the body. If these waste products build up in the body, they can be harmful.
The body uses calories to provide energy to the body. Some calories have nutritional value and others don't and are referred to as empty calories. The calories present in alcohol are empty calories and contain 7 calories per gram.
When you excrete waste, you are eliminating body waste and not fat or calories stored in your body. Weight loss from waste elimination is temporary and minimal. To lose weight, it's important to focus on a balanced diet and regular exercise.
Vitamins contain no kilo calories you at UW?
80 calories