Iron deficiency

Iron deficiency: the 5 most common causes that everyone should know about

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Iron deficiency is a condition in which the body does not have enough iron to produce enough red blood cells. This is not only a medical issue, but can also greatly affect the quality of life. Here are the five most common causes of iron deficiency that everyone should know.

1. Poor nutrition

Overview: One of the main causes of iron deficiency is a diet that does not contain enough iron-rich foods.

Details: Iron is found in many foods, especially meat, fish, poultry, legumes and dark green leafy vegetables. If these foods are not consumed regularly, the risk of iron deficiency increases.

2. Increased iron demand

Overview: Certain phases of life require more iron.

Details: During pregnancy or in times of rapid growth, such as puberty, the body needs more iron. If this increased demand is not met, a deficiency may result.

3. Chronic bleeding

Overview: Chronic blood loss, e.g. due to menstruation or internal bleeding, can lead to iron deficiency.

Details: In women who have heavy menstrual bleeding, iron loss can be significant. Other conditions, such as gastric ulcers, can also lead to continuous blood loss and thus iron deficiency.

4. medical conditions and medicines

Overview: Some diseases and medications impair iron absorption or increase iron loss.

Details: Conditions such as celiac disease, Crohn's disease, or certain medications can affect the intestines' ability to absorb iron. Similarly, kidney problems or medical treatments that affect the kidneys can lead to iron loss.

5. Difficulties with iron absorption

Overview: Not everyone can absorb iron equally efficiently.

Details: Some people have difficulty absorbing iron from foods, regardless of how much they consume. This may be genetic or influenced by other factors.


Iron deficiency is a serious problem that can be caused by a variety of factors. From dietary habits to physical conditions to genetic factors, it's important to know the most common causes so you can take preventative measures.

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