Manganese from fruits and nuts can become a health threat
Increased consumption of certain foods can increase the concentration of manganese in the human body so much that it triggers a dangerous heart infection in those affected. Manganese is a mineral that is particularly found in green vegetables, fruits and nuts. So should we avoid consuming supposedly healthy foods in the future?
Vanderbilt University researchers found in their current investigation that mineral manganese found in vegetables, fruits and nuts can lead to a dangerous infection of the heart by a bacterium called Staphylococcus aureus. The scientists published the results of their study in the journal "Cell Host and Microbe".
So far, the assumption was that vegetables, fruits and fruits are healthy for the body
Many people often eat green vegetables, fruits and nuts because they are convinced of their health benefits for the body. Certainly many of us still have the words of their parents in mind, which advise us to eat our vegetables because vegetables are healthy for the body. However, according to the latest results from Vanderbilt University, this advice could lead to an infection of the heart by a harmful bacterium.
Staphylococcus aureus is the second leading cause of bloodstream infections
The manganese in green vegetables, fruits and fruits can cause a dangerous bacterial infection in the human heart. The bacterium Staphylococcus aureus (staphylococcus) is the main cause of bacterial endocarditis (infection of the heart chamber and heart valves) and the second most common cause of bloodstream infections.
Manganese inactivates defense against pathogens
During the investigation, mice were given an increased amount of manganese. The mice ingested about three times more manganese than it would have been normal, say the experts. The effects of such manganese ingestion had serious effects on the mice in the experiment. Most of the experimental animals died after infection with the Staphylococcus aureus bacterium. The researchers found that excess manganese inactivates a key line of defense against pathogens.
The effects of an overdose of manganese
It is very striking that a certain change in diet can inactivate one of the most powerful branches of the innate immune system and lead to a fatal infection, explains author Professor Eric Skaar from Vanderbilt University in the USA. The human body actually does the job of regulating nutrient levels very well. The so-called traditional Western diet provides the body with a high level of minerals. The effects of an overdose of nutrients must therefore be examined more closely and taken into account in the diet, the scientists say.
Neurotoxicity and reduction of the intelligence quotient in children
There have been other studies that show that excessive exposure to manganese can lead to neurotoxicity and lower IQ in children. Manganese plays an important role in the growth and development of the brain, the experts explain. It is also used in the manufacture of steel, alloys, batteries and fertilizers.
Why are children so sensitive to manganese?
The results of the older studies showed that an increased concentration of manganese in hair samples was significantly associated with a decrease in the intelligence quotient, brain processing speed and poor memory. According to the scientists, children could be particularly susceptible to the neurotoxic effects of exposure to manganese from our surroundings because their brain is currently undergoing a dynamic process of growth and development. (as)