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Lecture Notes

On this slide you can see the classes of essential nutrients. We have two different classes: the macronutrients and the micronutrients. And the major difference here is that the macronutrients are providing calories, or energy, and the micronutrients are not providing energy to the body, but they do still play an important role. So in the macronutrients you have proteins, fats, and carbohydrates, and we'll talk about each one of these in detail, and then the micronutrients you have vitamins, minerals, and water. And these are all considered essential nutrients because your body does not make them fast enough or doesn't make them at all in order to be able to function properly.