GQFitness

Two terms for clients to keep in mind when it comes to nutrition are nutrient density and caloric (or energy) density.

Which is heavier--a pound of lead or a pound feathers? All joking aside, the real issue is that one is more dense than the other. Density generally refers to the ratio of mass to volume. In the lead and feathers scenario, the former is comparatively heavy for its volume, while the other has to be greater in volume to be equally heavy. In a similar way, something with high nutrient density contains a lot of vitamins and minerals per caloric amount of that food. However, something with a high caloric density may--or may not-exhibit a high nutrient density.

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