Nutrition is the study of what we eat, how it affects our state of health and our also our sense of well-being. Lack of proper nutrients leads to degenerative changes, and feelings of un-ease, and eventually disease.
Changes in bowel movements, energy levels, digestive symptoms, mood, skin conditions, poor immunity, breathing difficulty, can all be attributed to foods which that body does not know how to digest or utilise.
Deficiencies of certain nutrients leave signs for a nutritionist to observe, such as spots on nails, pale tongue, etc. Similarly, excess consumption of certain foods can also produce signs or symptoms, which when the food is removed or limited, disappear.
Once a deficiency or excess is corrected, the body quickly has a chance to restore balance.