Malnutrition can be as a result of a consuming foods that have no nutrition and/or not being able to absorb or digest foods properly.
If you eat foods like grains, processed foods and foods which you are particularly sensitive to your guy will become impaired and you may not be able to absorb nutrition. Grains are particularly difficult to digest. When you eat wheat for instance the villa of the intestines
It takes enzymes, acid in the stomach, the ability to absorb fats and other factors which make you able to absorb your nutrition.
Also, pathogens like harmful bacteria such as H.Pylor can have devastating effects on health and can lead to SIBO. Viruses and fungi like candida and other parasites can prevent you from being able to absorb your nutrition by stealing the nutrition and blocking absorption.