Those who are better trained and those who eat the most iron-rich foods would tend to have the best grades in school.
Diet for students: if you want your children to have good grades at school at the table you have to put vegetables green leaf, vegetable, cereals, dried fruit, algae and cocoa.
The secret lies in the iron, which would have the power to improve students' academic performance. This is supported by a study published in the journal The Journal of Nutrition by US researchers from Pennsylvania State University at University Park and the University of Nebraska at Lincoln, according to which those who are more trained, in fact, tend to have the best grades in school.
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Physical activity, in practice, combined with a good intake of iron, would greatly influence the ability to get good grades.
OUR OFFICE - The survey involved 105 university students between 18 and 35 years old. In particular, the authors looked for a link between them academic performance - measured by scoring Gpa ("Grade point average", as the authors of the study explain) which represents the "average of the student's grades" -, the frequency with which they practiced a sports and the levels of iron present in their blood.
Result is that the participants who had levels the highest in iron had the highest grade point average in school. In addition, those who were in better shape and had normal iron levels averaged 0,34 points higher than the less trained participants, who showed iron deficiencies.
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Iron in the first place, therefore, which would be the only one essential mineral for the synthesis of hemoglobin, protein that transports oxygen to the cells. For this reason, if excessively deficient, one feels one feeling of exhaustion which can lead to poor school performance (the other symptoms of iron deficiency are: breathing difficulties, paleness, digestive problems, unmotivated acceleration of the heartbeat, feeling of cold in the hands and feet, headache and irritability). As for the sport, it is clear that to be in good physical shape positively affects health in general and cognitive activities themselves.
Iron, therefore, seems to be the right answer. And if you don't eat meat, don't worry: here are 12 sources of iron for vegans and here are the natural remedies for anemia.