poppy seeds
Opium (or poppy tears, scientific name: Lachryma papaveris) is dried latex obtained from the seed capsules of the opium poppy Papaver somniferum.
Researchers develop a "space salad" perfected suited for astronauts on long-durations spaceflights. The salad has seven ingredients (soybeans, poppy seeds, barley, kale, peanuts, sunflower seeds, and sweet potatoes) that can be grown on spacecraft and fulfill all the nutritional needs of astronauts.