Calories are a measure of energy, typically describing energy in food and energy derived from food. They include two types small calories and gram calories.
Factoids tagged with "Calories"
Carbohydrates (especially simple ones like sugars) “spike” blood sugar (glucose) levels. This triggers insulin production, causes hunger, and primes the body for weight gain.
Only some vegetables are better for you raw than they are cooked. It depends on the specific vegetable, cooking method, and the person.
Both animal-derived and plant-derived food production has consequences, but meat production is worse for the environment in most cases.