Organic spinach means the leaves grew without synthetic pesticides or fertilizers. It delivers a dense package of vitamins A, C, K, and folate, plus iron and magnesium.
People eat it to round out their everyday nutrition. The vitamin K supports normal blood clotting and bone health. Antioxidants in the leaves help shield cells from oxidative stress.
You can add it raw to salads or smoothies, or cook it as a side dish. Since it is a whole food, no fixed serving applies. Watch the oxalates if you are prone to kidney stones, and note that the vitamin K can interfere with blood-thinning medications.