Friday November 15, 2019

Salty Diet Reduces Thirst, Increases Hunger

The new results showed something different: salt stayed in the urine, while water moved back into the kidney and body

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salty diet
The results confirmed that eating more salt led to a higher salt content in urine. Higher amounts of salt also increased overall quantity of urine. Pixabay

A salty diet causes people to drink less water while increasing hunger due to a higher need for energy, suggests new research.

The findings, published in the Journal of Clinical Investigation, are based on a study carried out during a simulated mission to Mars.

“Cosmonauts” who ate more salt retained more water, were not as thirsty, and needed more energy, the results showed.

What does salt have to do with Mars? Nothing, really, except that on a long space voyage conserving every drop of water might be crucial.

The researchers said that the findings should be applicable whether a body is being sent to Mars or not.

In the study carried out by Natalia Rakova from Max-Delbrueck Centre for Molecular Medicine, Berlin in Germany and her colleagues, the participants were two groups of 10 male volunteers sealed into a mock spaceship for two simulated flights to Mars.

Salty food
Salty food. Pixabay

The first group was examined for 105 days and the second over 205 days. They had identical diets except that over periods lasting several weeks, they were given three different levels of salt in their food.

The results confirmed that eating more salt led to a higher salt content in urine. Higher amounts of salt also increased overall quantity of urine.

But the increase was not due to more drinking — in fact, a salty diet caused the participants to drink less. Salt was triggering a mechanism to conserve water in the kidneys.

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“This water-conserving mechanism of dietary salt excretion relies on urea transporter-driven urea recycling by the kidneys and on urea production by liver and skeletal muscle,” the researchers said.

Before the study, the prevailing hypothesis had been that the charged sodium and chloride ions in salt grabbed onto water molecules and dragged them into the urine.

The new results showed something different: salt stayed in the urine, while water moved back into the kidney and body. (Bollywood Country)

Next Story

39 Million People Suffering from Hunger in Latin America and The Caribbean

(Hunger) is a really worrying trend because, after undernourishment and hunger had declined for decades in that region and around the world

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People, Hunger, Latin America
Eve Crowley, who is in Montevideo to present a book commemorating FAO's 68 years in Uruguay, described the current situation in the region in an interview with EFE on Saturday. Pixabay

An increase in the number of people suffering from hunger in Latin America and the Caribbean, now totaling 39 million, is a cause of concern for the United Nations Food and Agriculture Organization (FAO), according to its deputy representative for that region.

Eve Crowley, who is in Montevideo to present a book commemorating FAO’s 68 years in Uruguay, described the current situation in the region in an interview with EFE on Saturday.

“(Hunger) is a really worrying trend because, after undernourishment and hunger had declined for decades in that region and around the world, we’re now seeing an increase,” she said. “In the Latin American and the Caribbean region there are now 39 million people suffering from hunger.”

On the other end of the spectrum levels of obesity and overweight also are elevated in the region and ascend to as high as 65 per cent of the population in Uruguay, compared to 60 per cent for the region as a whole.

People, Hunger, Latin America
An increase in the number of people suffering from hunger in Latin America and the Caribbean, now totaling 39 million, is a cause of concern for the United Nations Food and Agriculture Organization (FAO), according to its deputy representative. Pixabay

“We have a target of … eradicating malnutrition in all of its forms, and currently one of its expressions is that in many countries there’s a combination of simultaneous problems – not only in the country, (but) at times in the home and at times in the same person,” she said, noting that undernourishment occasionally goes hand in hand with overweight and obesity and micronutrient deficiency.

Regarding the high level of meat consumption in the region, although the FAO promotes and recognizes the importance of that food group, the expert expressed concern that animal protein is being consumed in excess at the expense of fruit and vegetables.

“The use of antibiotics in the production chain of meat and fish is a very big source of concern for the FAO, Pan American Health Organization, World Health Organization and the World Organization for Animal Health because we know that in 2050 antimicrobial resistance will be the biggest cause of death in the world, ahead of cancer and noncommunicable diseases,” Crowley added.

She said it is very important for governments to levy taxes on unhealthy foods and to incentivize the consumption of fruits, vegetables and fish, as well as to promote family farming and educational campaigns such as the latest nutritional guide released by Uruguay’s Health Ministry.

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“If governments don’t take action now, they’re going to pay with (heavy burdens on) their public health systems, something that’s already happening with the spending of millions of dollars to alleviate noncommunicable diseases,” Crowley said. (IANS)