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Study Sheds Light on Compulsion to Sprinkle Salt on Chips

March 12, 2009: 05:16 AM EST
Salt in the diet may have “drug-like” qualities, says Professor Kim Johnson at the University of Iowa. Working with rats, he found that eating salt put them in a better mood, and sparked cravings similar to drug addiction. Salt is essential to help fluids pass through the body, but too much can be bad news, contributing to raised blood pressure, heart disease and other ailments. Not getting enough salt, on the other hand, may cause depression. Prof Johnson’s study found that changes in the rats’ brain activity when they were denied salt were the same as when they were denied drugs.
Jon Swaine, "Salt 'may be drug-like mood enhancer', says study", Telegraph.co.uk, March 12, 2009, © Telegraph Media Group
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