In the new study, published in the Journal of Clinical Investigation, German and American scientists have found that salt increases appetite. It is associated with feelings of thirst: if a man drinks enough, his body begins to retain water, according to news.rambler.ru.
When salt intake increases thirst due to the high level of sodium in the body (salt is sodium chloride) and water retention in tissues besides increases the weight. The researchers examined ten Russian cosmonauts who participated in the programs flight simulator from 2009 to 2011.
By reducing their dietary salt from 12 to six grams they began to use less water than planned. Due to the strict control for the diet of astronauts, scientists were able to determine what low intake of salt reduces thirst. The pilots also reported that they feel hungry when salt levels are higher, although they received the same amount of calories and nutrients.
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“Hunger is the consumption of excessive amounts of salt is associated with the fact that saving water requires additional energy, – says Jens Tietze, Professor of medicine, molecular physiology and Biophysics, Vanderbilt University. On a diet with a high content of salt, the body wants to prevent the loss of moisture, so the kidneys hold excess water.