We know eating well, avoiding alcohol, getting rest, exercise and avoiding stress are all key to a healthy baby and a healthy mom. But a recent study put even more importance on what you choose to put in your mouth when you're expecting and how those choices can affect your child's tendency towards obesity later in life.

The international study, which included researchers from the U.K, New Zealand and Singapore, found that a mother's diet can alter her child's DNA—a process called epigenetic change, which can lead to the child laying down more fat. And, the study showed that this process is not impacted by how fat or thin the mother is, or what the child's weight was at birth.