Trade romaine or other salad greens for spinach—it’s high in folate, which helps prevent neural tube defects like spina bifida. It's also a good source of iron, which you need almost 40 percent more of during pregnancy. Your body absorbs iron best from meat sources, but you can help your body absorb more from plant sources like spinach by pairing the leafy green with vitamin C-rich foods. Toss bell peppers or strawberries on your salad.
