Comment Potential dangers (Score 2) 88
While we haven't studied Martian soil as much as lunar soil, if they are similar, the soil itself can hold health hazards that adding a little compost won't solve.
The soil carries an electrical charge and clings to spacesuits. People (on Earth) who worked inside returned lunar space capsules experienced allergy-like symptoms. I seem to recall that much lunar soil particles have very sharp edges and can affect your lungs.
Not sure what characteristics would be transferred from the Martian soil to a vegetable. How would our bodies react to that?