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NASA might save 700,000 dollars a day by giving astronauts enough Vitamin D

$360,000/ hour to operate Space Station $720,000/working hour (assuming work & exercise = 12 hours/day)
Astronauts spend 2 hours a day exercising to prevent bone loss
Probably only work and exercise 12 hours a day, so only 10 hours a day of work
Note: The only supplement NASA gives crews is vitamin D - Sept 2015 2,000 IU daily, which is not enough

I speculate that if astronauts got 8,000 IU of vitamin D daily that:

Astronauts could spent 1 hour a day more actually working
- each hour of the space station crew costs $720,000
Astronauts would be healthier – and thus less time off due to sickness
Less DNA damage from high-energy environment
Vitamin D reduces damage from Cancer radiation treatment by 3X

I had been thinking about the value of a person's time
Then realized that an astronauts time is very costly
Henry Lahore, Founder of VitaminDWiki, Nov 2017

Web - in addition to Vitamin D, astronauts also need Magnesium

Suspect that the water recycling system on Space Station removes Magnesium

Benefits for bone from resistance exercise and nutrition in long-duration spaceflight: Evidence from biochemistry and densitometry. 2012, Free PDF online
The nutritional status of astronauts is altered after long-term space flight aboard the International Space Station March 2005, Free PDF online
Potential renovascular hypertension, space missions, and the role of magnesium 2009. Free PDF online
The Vitamins you will need to survive a trip to Mars Sardi 2013
Excellent, with many references. Includes Vitamin D and Magnesium
Download Magnesium and Space Flight - 2016 from VitaminDWiki

NASA might save 700,000 dollars a day by giving astronauts enough Vitamin D

4819 visitors, last modified 17 Jan, 2022,

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- VitaminDWiki interview and transcript - Lahore Jan 2022 Submariners need Vitamin D (no surprise) – Review March 2023 Simulated Mars trip ran low on vitamin D (no supplements, no UV) – Sept 2019 Many viral infections can be fought by Vitamin D (Astronaut’s in this case)– Aug 2022 Recommended increasing vitamin D for space flight – NASA Sept 2013

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