Questions tagged [nutrition]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
9
votes
2answers
4k views

Are there any long term storable sources of vitamin C?

I have heard that no known long term shelf stable form of vitamin C is known. I find this surprising, is it really true? What are the best options for astronauts to have vitamin C for long term (>1 ...
7
votes
1answer
314 views

Do astronauts lose potassium faster than terrestrial humans?

According to the Apollo Program Summary Report, astronauts on the longer 15-17 missions have difficulties maintaining dietary potassium levels. Section 8.4 claims Negative nitrogen and potassium ...
6
votes
1answer
457 views

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

Growing one's own food has long been a goal of space exploration. It has the potential to reduce the amount of mass needed for long-term missions. Food has been experimentally grown and eaten on the ...
38
votes
3answers
9k views

Are there any vegetarian astronauts?

Following this question and other food-related questions, including on Quora, I failed to see mention of a meal without meat or fish. I suppose: It is technically possible to have healthy vegetarian ...
9
votes
0answers
804 views

Will we all be in voluntary ketosis on Mars?

The EurekAlert! NASA mission tests ketogenic diet undersea, simulating life on Mars University of South Florida researcher will be in nutritional ketosis during NEEMO 22 mission packs a lot of ...
5
votes
2answers
472 views

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

If I don't worry about morale, would daily, average sized meals from the following be sufficient to stay alive for three years in space? I'm assuming only water is recovered from waste. Assume enough ...