The Bottom Line: What You Really Need to Know. 1  Trazodone (Trade Names: Deseryl) is an antidepressant with many other uses.  The usual dose depends on what it is being taken for and can range from 150-600 mg/day.
Figure 1. An XKCD comic showing the comparative energy density of Uranium. Energy density is the amount of energy that can be stored in a given mass of a substance or system. The higher the energy density of a system or material, the greater the amount of energy stored in its mass. Energy can be stored in many different types of substances and systems. A material can release energy in four types of reactions.
Calorie density, also known as calories per pound, is how much energy, i.e. calories, is provided per unit measure of food. In comparison, calorie-dense foods, such as fat and refined sugars, provide many calories in a small amount of food. Foods with low-calorie density -- fruits, vegetables -- provide fewer total calories and greater nutrition in a larger volume of food. Here's how to find the best mix of both to stay healthy, lose weight and help balance your caloric intake.