You may have a pretty good idea of how much you should be eating per day. Or you might not have a clue and simply tuck into whatever you fancy. But understanding how calories – a unit of energy – ...

You burn calories when you move around, work, and do your daily tasks. Being a measure of energy that is used to express the nutritional value of foods, calorie intake matters a lot. According to ...

If you're a 200-pound man, the amount of calories you need to consume each day depends on a variety of factors. Your sex, age, weight, height, and activity level can all affect your calorie intake.

Counting Calories for Weight Loss: Should You Do It? This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. Who knew weight loss involved so much math? Counting calories can be a useful ...