A new study indicates that salty foods make people hungry, not thirsty, as everyone might think. The research was developed during a simulation of a Mars mission. The group of scientists has unveiled that astronauts who consumed more salt tend to retain more water and were not as thirsty as one may think. They proved that they needed more energy.
Salty foods increase the salt levels in urine
This was the first time when scientists developed an analysis regarding a person’s salt intake based on his or her beverages consumption. Researchers suggested that a high amount of salt can trigger a high urine production. They have assumed that the extra fluids in the body come from drinking. Nevertheless, some other scientists argue that we should hurry to conclude until we have proofs.
Specialists at the Vanderbilt University, the German Aerospace Center (DLR), the Max Delbruck Center for Molecular Medicine (MDC) and other colleagues around the world have tested this theory during a simulated Mars mission. The outcomes of their study appear in two distinct papers, both released in The Journal of Clinical Investigation. Some may wonder what may be the connection between Mars and salt consumption.
A high amount of salt makes people hungry
Scientists explain that they chose this simulated mission to highlight the importance of every drop of water when being on a long space mission. The primary purpose of this simulation was to offer the proper environment where every step in an individual’s nutrition was monitored. The new studies were conducted by Natalia Rakova (MD Ph.D.) of the Charite together with her colleagues.
To develop these researches, they used the help of two groups of male volunteers, each group consisting of 10 members. They were all locked into a spaceship used for simulations where they simulated two voyages to Mars. The first group of participants was analyzed for 105 days. The second one was observed for more than 205 days.
All male volunteers benefited from the same diets except that over a period which lasted a few weeks, they received distinct levels of salt in their foods. The outcomes of the study indicated that salty foods lead to a greater level of salt in urine. Nevertheless, they demonstrated that salty meals made astronauts drink less and triggered kidneys to conserve the water intake.
These new findings provided scientists a different perspective which should be considered when thinking about water and salt intake.
Image source: flickr