Calories weren’t always about food. The term started out as a measurement of energy in the 1800s, and it was several decades before it was used in conjunction with human nutrition, according to the ...

Whether you're trying to lose weight, gain weight, or stick to your current weight, it's important to know how many calories you need to eat each day. Daily calorie intake is different for each person ...

Calorie density is a measure of the calorie content of food relative to its weight or volume. It is also called energy density and is usually measured as calories per 3.5 ounces (100 grams) of food.

Most children overeat significantly when served large portions of calorie-dense popular foods, according to a Penn State study. The results suggest that manipulating calorie content and portion size ...

Some foods vanish in three bites but leave a lasting dent in your daily intake, while others seem to go on forever and barely make a difference. If you’ve ever been puzzled by how your “tiny” snack ...