Yes, the calories you eat are the same calories that you burn.
No, pineapple is not a negative calorie food.
what is calorie
It depends on the type of food. Some foods are calorie dense while others are low calorie.
1 food calorie (Cal) = 4.184 kilojoules (kJ)
The large calorie, kilogram calorie, dietary calorie or food calorie approximates the energy needed to increase the temperature of 1 kilogram of water by 1 °C.
1 ft-lb = 0.32383 international calorie (0.00032383 food calorie) 1 food calorie = 3,088.03 ft-lbs
1 food calorie or Calorie or kilocalorie is equivalent of 1000 calories and thus 5 food calories is equal to 5000 heat calories.AnswerA 'food calorie' is a unit of measurement that people in the food industry are either too lazy or too stupid to call a 'kilocalorie' (kcal).A calorie is a calorie. There is no such thing as a 'food calorie'. A calorie measures energy. Any energy. However, it is an obsolete unit that was used in the old centimetre-gram-second-ampere system. When used to describe food energy, it should be 'kilocalories' NOT calories (calories are not capitalised).
Food and rest.
They need more food
You may find some of these negative calorie food chart at these sites. They are fasting.ygoy.com/2010/05/10/negative-calorie-foods-chart and www.fatfreekitchen.com/negative-calorie-foods.html
calorie--
A Calorie