Counting calories, tallying nutrients, avoiding junk food --
they're smart dietary practices for anyone, but they're even
more essential for pregnant women. In fact, new research
suggests that the foods you eat can play a role in how your
baby's genes are expressed, affecting factors such as weight and
intelligence. Dr. Oz, host of "The Dr. Oz Show," and Dr. Michael
Roizen share healthy eating tips for pregnant women from their
new book, "You: Having a Baby." Eating for Two? Try 1.1 One of
the most widely held myths about pregnancy is that expectant
mothers should eat for two. Actually, research suggests that
women should increase their caloric intake by 10 percent --
you're really eating for 1.1. During the first trimester, you
should shoot for an increase of about 100 calories per day more
than a typically healthy intake of calories, the equivalent of
an extra glass of skim milk. During the second trimester, you'll
want to increase to an extra 250 calories per day, and for the
third, about an extra 300 calo