41 votes
Accepted

Are there any long term storable sources of vitamin C?

False premise: Even the article you are citing does not support your statement. Vitamin C is very much storable in the long term. It's just that the raw form of most of the natural foods that contain ...
CuteKItty_pleaseStopBArking's user avatar
16 votes

Are there any vegetarian astronauts?

In addition to the vegetarian and even vegan astronauts mentioned elsewhere, there soon may be more. In at least one of many possible scenarios for food on long flights, NASA astronauts on the ...
Oscar Lanzi's user avatar
  • 8,505
14 votes

Are there any long term storable sources of vitamin C?

Not to disagree with PcMan's answer as marked accepted, but adding some more information that might be interesting and could pass as an answer in its own right :-) Thing is, before space exploration, ...
frIT's user avatar
  • 243
11 votes
Accepted

Has a source of vitamin C ever been successfully grown in space?

Yes; NASA selected bok choy, aka "Chinese cabbage", for one of their recent garden experiments, quite possibly because of its high vitamin c content (45mg, half of your daily recommended dose, per ...
Alyson's user avatar
  • 126
9 votes
Accepted

Do astronauts lose potassium faster than terrestrial humans?

The potassium deficiency issues on the Apollo missions were at least to some degree due to exertion during the lunar EVAs. Despite the low gravity, the stiffness of pressurized spacesuits made what ...
Russell Borogove's user avatar
8 votes

Are there any vegetarian astronauts?

As astronaut is always to choose the food of his/her own choice . They have a tasting period of 15 days to eat and choose what foods he/she likes to eat in space and the food choice has to meet the ...
yoga's user avatar
  • 181
4 votes
Accepted

Dried beans, rice and oats, jerky, olive oil, salt, vitamins, electrolytes, water; anything else?

Fruit and vegetables are two food groups missing from the list. Fruit could be processed and turned into a low moisture gel prior to travel. Something like fruit rolls ups, but with less sugar and ...
Fred's user avatar
  • 13.1k
4 votes
Accepted

Will we all be in voluntary ketosis on Mars?

To summarize what ketosis is, as shown in the nice summary graph you included, there is 3 main types of nutrients we can use: carbohydrates, fats and proteins. Carbohydrates can be broken down and ...
Rafa's user avatar
  • 1,750
2 votes

Will we all be in voluntary ketosis on Mars?

Can ketosis increase radiation tolerance? Probably Not. It's certainly something worth studying - science is all about looking into harebrained ideas! But I don't expect this one to pan out. ...
codeMonkey's user avatar
  • 1,613
2 votes

Dried beans, rice and oats, jerky, olive oil, salt, vitamins, electrolytes, water; anything else?

If I don't worry about morale This is where the list starts to go wrong. Psychological health is not somehow entire disconnected from the rest of the functions of the body. Severely limited ("...
SE - stop firing the good guys's user avatar
1 vote

Will we all be in voluntary ketosis on Mars?

Bad idea. Ketosis results in muscle atrophy (wasting). Glucose is the primary fuel of the heart and brain. No blood glucose = death. Ketones are not an adequate substitute for glucose. Normally, the ...
Woody's user avatar
  • 21.6k

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