Why Do You Get Iron Deficiency?

Why Do You Get Iron Deficiency? Common Causes, Signs and Risk Factors

Iron is an essential mineral that carries oxygen through your body and keeps your energy steady. When your iron runs low, the tiredness follows you through the whole day. About one third of the world’s population is iron deficient, and menstruating women are at greater risk than men.

Here is why it happens, who it affects most and when to talk to your healthcare provider.

What Is Iron Deficiency?

Iron deficiency means your body does not have enough iron to make hemoglobin, the protein in your red blood cells that carries oxygen. Your body keeps a reserve of iron, mostly in your liver, and draws on it whenever your diet falls short.

Iron deficiency sets in when that reserve runs too low. Left alone, it can lead to anemia, which means your blood no longer has enough healthy red blood cells to carry oxygen well.

How Low Iron Becomes Anemia

Low iron doesn’t arrive all at once. It usually develops in three stages:

Iron Depletion: Your stored iron is low but your hemoglobin is still normal. Most people notice nothing at this point.

Iron Deficiency: Your iron levels and your hemoglobin both drop below normal, and tiredness starts to show.

Iron Deficiency Anemia: Your blood can no longer deliver enough oxygen to your cells.

Why Do You Get Iron Deficiency? The Most Common Causes

You get iron deficiency when your body uses iron faster than it can replace it, or when less iron comes in through your diet. Most low iron causes fall into three groups.

Blood Loss

Blood loss is generally the most common reason for low iron. Heavy menstrual periods are the usual source in women of reproductive age. Regular blood donation or even frequent nosebleeds can draw down your iron stores over time.

Bleeding in the stomach or intestines is another cause, and it often goes unnoticed. It can be linked to ulcers, bowel inflammation or medicines such as ibuprofen and aspirin. Less often, polyps or cancers of the bowel or stomach are behind it.

Higher Iron Needs

Pregnancy is a very common cause, because your body makes more blood to support your growing baby. Breastfeeding raises your iron needs as well. Athletes are prone to low iron too, since hard training uses more iron.

Diet and Absorption Problems

For some people, what causes a lack of iron is simply diet. Heme iron, found in animal foods like beef, chicken and fish, is the form your body absorbs most easily. Non-heme iron from plant foods and most supplements is harder for your body to take up.

Some people eat plenty of iron but cannot absorb it well. This can happen with celiac disease, inflammatory bowel disease or after weight loss surgery. Large amounts of tea, coffee and dairy make iron harder to absorb too.

Who Is Most at Risk of Low Iron?

You may be more likely to have low iron if you:

• Menstruate, especially with heavy periods
• Are pregnant, recently gave birth or are breastfeeding
• Follow a vegetarian or vegan diet
• Donate blood often or train hard as an athlete
• Have had major digestive or weight loss surgery

Iron Deficiency Symptoms to Watch For

Low iron often causes only mild symptoms at first, and they tend to get worse as your iron stores fall. Common iron deficiency symptoms include:

• Tiredness and lack of energy
• Weakness, especially during exercise
• Shortness of breath
• Noticeable or fast heartbeats
• Pale skin, headaches or dizziness

Low iron symptoms in females deserve extra attention, especially alongside heavy periods or during pregnancy.

Less Common Signs

Some people notice what are often called weird signs of iron deficiency:

• Craving ice or paper, known as pica
• A sore tongue
• Spoon-shaped nails
• Hair loss
• Restless legs syndrome

What Will Low Iron Cause If It Is Not Treated?

Untreated iron deficiency anemia can weaken your immune system and raise your risk of infection. It may also lead to heart problems such as a fast heartbeat or heart failure. If you are pregnant, it may lead to complications before and after birth.

How to Tell If You Have Iron Deficiency

How can you tell if you have low iron? Symptoms alone cannot confirm it, since tiredness and pale skin point to plenty of other conditions. Your healthcare provider will ask about your health and then order blood tests.

A complete blood count, or CBC, checks your red blood cells. Other tests measure ferritin, the protein that stores iron, to confirm a low iron count.

Your provider will also look for the cause, because iron supplements alone may not fix the problem if something like hidden bleeding is involved. It is worth avoiding self-diagnosis here, since too much iron can be harmful.

Understanding Why You Get Iron Deficiency

So, why do you get iron deficiency? Most cases come down to blood loss, higher iron needs, too little iron in your diet or trouble absorbing what you eat. Fatigue, weakness and pale skin are the signs that show up most often, and a simple blood test can tell you what is going on.

If the tiredness has been hanging around, speak with your healthcare provider. If they recommend an iron supplement, OptiFer Alpha is a heme iron supplement that helps prevent iron deficiency and helps treat iron deficiency anemia. Because heme iron is absorbed through its own pathway, OptiFer Alpha is gentler on your stomach than traditional iron salts, which makes it easier to stay on. Always follow the recommended dosing and consult your healthcare provider for anemia management.

References

Better Health Channel: Iron and Iron Deficiency

Mayo Clinic: Iron Deficiency Anemia: Symptoms and Causes

Cleveland Clinic: Iron-Deficiency Anemia: Symptoms, Causes & Treatment

Houston Methodist: What Causes Iron Deficiency & How to Know If You Have It

NHS: Iron Deficiency Anaemia