Astronauts Need a Better Diet, Scientists Say

a greater variety of fruits and vegetables, more fish, and added sources of flavonoids and omega-3 fatty acids, compared to the standard menu. The participants consumed more than six daily servings of fruits and vegetables

and ate roughly two to three servings of fish each week, in addition to other healthy foods. Over the course of the simulated 45-day mission, each participant provided samples of urine, saliva, blood, and stool, while also completing cognitive tests.. But for those on the enhanced diet, they experienced some discernible benefits. “Overall, subjects consuming the enhanced diet had improved nutritional intake that associated with several improvements in markers of health, stress, and cognitive performance, as well as greater stability in the microbiome [i.e. microbial gut health]...compared to subjects consuming the standard diet,” the scientists wrote in their study.

A larger sample size would also be nice, and include more women, individuals with varied dietary needs and restrictions, medical conditions , different kinds of body masses, and people on certain medications. The researchers, aware of the low sample size, said their approach still “provided important insights into impacts from the complete spaceflight diet.”These concerns aside, the paper does enhance our understanding of the foods needed to keep astronauts healthy, vibrant, and productive.

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