Nutrition
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Nutrition is the study that deals with food (nutrients) and nourishment.
There are several nutrients that the human body needs to acquire: protein, carbohydrates, fat, vitamins, minerals and water.
Nutrient-dense foods are those that provide substantial amounts of vitamins and minerals and relatively fewer calories.
The first principle of a healthy diet is simply to eat a wide variety of foods. [1]
Correct food combinations result in an immediate improvement in health by lightening the load of the digestive organs; better nutrition is assured, and there is better digestion, less fermentation and putrefaction, more comfort, less distress and less gas. So-called food allergies often disappear as a result of proper food combining. [2]