To lose weight, calculate your energy balance equation ... reading Nutrition Facts labels or estimating caloric density. To ...

Here's the secret: Choose foods that are low in energy density. It may sound like weird science, but "energy density" is nothing more than the calories in a portion of food. Fruits, vegetables ...

Density is the mass per unit volume. Density can be found using this equation. Density is sometimes measured in g/cm 3. Make sure that you use units that are consistent with the question in an exam.