Can Iron Deficiency Increase Alzheimer Risk: People often associate iron deficiency only with weakness or fatigue. But now new research is changing this perception. Scientist says that low hemoglobin in the body can affect not only energy but also the brain and this effect can gradually lead to serious diseases like dementia. A study published in JAMA Network Open on April 17, 2026 has further strengthened this link. In this, researchers from Karolinska Institutet and Stockholm University studied more than 2200 elderly people for a long time.
What came out in the research?
In this research, it was seen that people who had anemia already had more Alzheimer’s related biomarkers in their blood. Additionally, they were also found to have a higher risk of developing dementia during follow-up. That means iron deficiency is not just a simple problem, but can also be a sign of mental diseases. According to the study, people who had both low hemoglobin and Alzheimer’s-related proteins like p-tau217 had the highest risk of dementia. This indicates that blood loss in the body and brain changes may be related to each other.
What is the problem due to iron deficiency?
Iron deficiency also affects the supply of oxygen in the body. When the brain does not get enough oxygen, its efficiency gradually begins to weaken. This is why anemia is now being seen not only as a physical but also as a neurological problem. Another interesting thing that came to light was that the risk of dementia due to anemia was seen to be higher in men than in women, whereas this problem is more common in women. Researchers believe that different biological reactions of the body may be responsible for this.
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How many people are affected by this?
According to statistics, about 1.2 billion people worldwide are affected by iron deficiency anemia. In the UK alone, about 1 crore people are suffering from this problem, which makes it a major public health concern.
Is there any treatment for this?
The good thing is that iron deficiency can be prevented to a great extent. This can be controlled by eating a balanced diet, eating iron-rich foods, such as green leafy vegetables, grains and red meat, and taking supplements if needed. Experts believe that if anemia is identified and treated in time, the risk of dementia can be reduced. Because in about 45 percent of the cases, this disease can be avoided or slowed down by proper lifestyle and timely testing.
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Disclaimer: This information is based on research studies and expert opinion. Do not consider this as a substitute for medical advice. Before adopting any new activity or exercise, please consult your doctor or relevant specialist.
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