Heart disease is the leading cause of death around the world. Every year, millions of people die because their heart or blood vessels stop working properly.
According to global health reports, heart and blood vessel diseases are responsible for more deaths than any other illness. Many people think heart attacks happen suddenly, but in most cases the problem develops slowly over many years.
One of the main causes of heart disease is a condition called atherosclerosis. This condition happens when fatty substances slowly build up inside the arteries. Arteries are the blood vessels that carry oxygen-rich blood from the heart to the rest of the body. Over time, the fatty material forms thick deposits called plaques along the inner walls of the arteries.
These plaques make the arteries narrower and harder. As a result, blood cannot flow through them as easily as before. If a plaque suddenly breaks open, it can create a blood clot that blocks the artery completely. When this happens in the heart, it causes a heart attack. When it happens in the brain, it can lead to a stroke.
A major factor that leads to plaque buildup is a problem called dyslipidemia. This means there are unhealthy levels of fats in the blood. These fats include cholesterol and triglycerides.
Cholesterol is a waxy substance that the body needs in small amounts, but too much of it can be dangerous. Triglycerides are another type of fat that comes from food and from the body’s own metabolism.
Many adults around the world have high levels of these blood fats. In fact, research suggests that nearly half of adults struggle with unhealthy cholesterol or triglyceride levels. When these fats remain high for many years, they slowly damage the blood vessels and increase the risk of heart disease.
Doctors usually treat high blood fats with medications. These drugs can help lower cholesterol and reduce the chance that plaques will break open. However, even with treatment, the plaques that already exist inside the arteries usually remain there. They may become more stable, but they rarely disappear completely.
Now scientists have discovered something surprising. A common mineral that the body already needs may help reduce harmful fats in the blood and even shrink plaques in the arteries. This mineral is called manganese.
Manganese is a trace mineral found in many foods such as whole grains, nuts, beans, and leafy vegetables. The body only needs small amounts of it, but it plays an important role in many biological processes. It helps support bone development, assists enzymes that control chemical reactions in the body, and helps protect cells from damage.
Researchers recently began to explore whether manganese might also influence the way the body handles fats. In a new study, scientists tested the mineral in mice that were prone to developing heart disease. The animals were given different doses of manganese, and the researchers carefully observed changes in their blood fat levels and artery health.
The results were striking. Manganese lowered both cholesterol and triglyceride levels in the mice. Even more interesting, it reduced the buildup of plaques inside their arteries. This suggested that manganese might help the body clear away some of the fatty material that causes atherosclerosis.
To understand how this happens, it helps to know how fats travel through the body. Fats cannot move freely in the bloodstream because they do not mix well with water. Instead, they travel inside small particles called lipoproteins. These particles act like tiny transport vehicles that carry fats through the blood.
Inside cells, a system called COPII helps package and move these fat-carrying particles. This system works like a delivery service, preparing packages and sending them to their destinations. The researchers discovered that manganese interacts with this system and changes how fats are processed and transported.
When the right amount of manganese was present, the system appeared to move fats differently. As a result, fewer harmful fats remained in the bloodstream. This change may help explain why plaque levels were reduced in the animals studied.
Dr. Xiao Wang, one of the scientists involved in the research, said the findings are promising. He explained that manganese may one day be used as part of new treatments to prevent or reduce heart disease. However, he also stressed that the research is still in its early stages.
So far, the study has only been carried out in animals. Scientists will need to conduct many more studies to understand whether manganese works the same way in humans and to make sure it is safe in the amounts that would be required for treatment.
If future research confirms these results, manganese could offer a simple and affordable way to help fight heart disease. This would be especially important because heart disease remains one of the biggest health challenges worldwide.
For now, experts still recommend focusing on well‑known ways to protect the heart. Eating a healthy diet, staying physically active, maintaining a healthy weight, and managing cholesterol levels remain some of the most effective strategies for reducing heart disease risk.
Scientists are also continuing to study how everyday foods and nutrients affect heart health. Some studies suggest that certain fruits, beans, and balanced diets can support healthy blood vessels and lower disease risk. These discoveries help researchers better understand how diet and nutrition influence the heart over time.
The new findings about manganese offer another piece of this complex puzzle. While more research is needed, the study provides hope that new approaches could help people protect their hearts in the future.
If you care about heart health, please read studies about top 10 foods for a healthy heart, and how to eat right for heart rhythm disorders.
For more health information, please see recent studies about how to eat your way to cleaner arteries, and salt and heart health: does less really mean more?
The research was published in the scientific journal Life Metabolism.
Copyright © 2026 Knowridge Science Report. All rights reserved.
