One Way by S. J. Morden

Author:S. J. Morden
Language: eng
Format: epub, azw3, mobi
Publisher: Orbit
Published: 2018-04-10T04:00:00+00:00

16

[Internal memo: Mars Base One (Logistics) to Mars Base Knowledge Bank 5/16/2044]

Discussion re: food requirements for crew member

The minimum calorific intake for a resting male is approximately nineteen hundred (1900) calories, and for a resting female approximately fourteen hundred (1400) calories.

From arrival to first harvest from the greenhouse, we will need to provide sufficient calories for the crew member to function effectively. Note that the effects of low calorific intake can result in symptoms including irritability, low morale, lethargy, physical weakness, confusion and disorientation, poor decision-making, immunosuppression, and the inability to maintain body temperature, leading to hypothermia, heat exhaustion, and heat stroke.

We propose that sufficient (daily 3600 men, 2600 women) calories are provided throughout the physically active build phase, and thereafter reducing (2800, 2100) during the test phase. It is expected that the greenhouse will begin to supplement stored food by Week 5 and by Week 12 will begin to supply carbohydrates. Protein (in the form of groundnuts and tilapia) will be available by Week 14. Vitamin supplements will be needed in addition to those derived from food, for the foreseeable future.

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