Organic berries and all fruits and vegetables because they contain various
photochemicals like antioxidants (vitamins C, E, beta - carotene and various minerals), bioflavonoids (like quercitin, limonene, hesperidin), and fiber which is needed for daily elimination of waste and support the healthy balance of the micro flora of the digestive tract.
Charnay would next
like to model the other potential cause of the exoplanet's flat spectrum:
photochemical haze, which gives Titan its shrouded orange atmosphere and Los Angeles its persistent dome of polluted air.