Salt is known to improve the taste of many foods, which may tempt consumers to buy more processed, salt-laden products. Common processed foods include commercially packaged bread, cereals, deli meats, soups, cheese, and instant noodles.
Increasing evidence shows that too much salt in the diet can wreak havoc on the body’s cardiovascular and
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Recently, scientists at the University of Edinburgh in Scotland theorized that high salt consumption might also impose stress on the brain. The results from the experiment showed that high salt intake could elevate stress hormone production.
The study linked the consumption of large amounts of salt-rich food to the activation of the hypothalamic-pituitary-adrenal (HPA) axis, the body’s stress response system. The researchers also noticed a high-salt diet led to increases in glucocorticoids, naturally occurring hormones that help regulate stress response and cardiovascular, cognitive, immune, and metabolic functions.
Matthew Bailey, Ph.D., lead author of the study and professor of renal physiology at the University of Edinburgh’s Centre for Cardiovascular Science, told Medical News Today:
“We are what we eat, and understanding how high-salt food changes our mental health is an important step to improving well-being. We know that eating too much salt damages our heart, blood vessels, and kidneys. This study now tells us that high salt in our food also changes the way our brain handles stress.”
The research team hopes that their work will encourage more public health policies that promote the reduction of salt in processed foods.
The findings appear in Cardiovascular Research.
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