Most people know that babies need milk. It turns out, so do fetuses and their hosts.
Calcium is essential for healthy teeth and bones. That goes double (or triple) for developing teeth and bones. Plus, high-calcium foods like milk, cheese and yogurt (and sardines and spinach) can help with pregnancy problems like water retention and, in the case of yogurt, yeast infections [source: Bouchez].
The recommended daily pregnancy intake of calcium is about 1,000-1,300 milligrams, or at least four servings [source: WebMD]. Low-fat dairy is the ideal way to obtain this calcium, since full-fat dairy has quite a lot of fat, and pregnant women (like everybody else) should moderate fat intake.
On an interesting side note, women who are trying to get pregnant might want to stick with the full-fat versions -- consumption of low-fat dairy products has been linked to decreased fertility [source: MNT].
Up next: Eat your meat! (Or your soybeans!)