Vitamin deficiencies can occur to many complex reasons, some of which is very important to seek medical advice for. Some of the most common reasons these cause a deficiency are:
This can happen due the use of certain medications that prevent the uptake of a certain vitamin(s). These can include laxatives as they flush food through the digestive tract quicker than the body can absorb the nutrients that are available. For women that take an oral contracepetive, vitamin B2 can be affected and have low absorption.
Restricting food groups, fad diets , eating disorders and dieting for extended periods can result in reduced levels of essential vitamins and minerals. Reduced intake of these vitamins can show up through physical or mental functioning being affected, mood changes, confusion, loss of appetite and gut issues can suggest this.
This occurs through many health conditions and means that the body does not absorb the nutrients well from the food we eat. For some people this can be due to conditions like Crohn’s disease, celiac disease, but can also be due to some medical procedures being done like ostomies.