All Female Mars crew might be our best option.
Researcher have studied the fitness for space travel of both men and women and find remarkable differences in what is needed to support male and female crew members. Kate Greene experienced it first hand as researcher and crew member at HI-SEAS crew 1. Kate found that her three male crew members ate significantly more, than her female colleagues, a result which verifies other studies in this field.
The Hawai’i Space Exploration Analog and Simulation (HI-SEAS) Facility is located on the side of a volcano in Hawaii. A crew of six (3 women and 3 men) reside in a two story dome for the duration of a mission. The first two missions took both 4 months, but the current mission will continue for eight months.