Whether you're planning for pregnancy or are already pregnant, this essential prenatal guide draws on the latest genetic research to give you a complete program of specific nutrition and environmental lifestyle changes that can help you have a better baby. The book is based on the emerging science of epigenetics and shows how the environment interacts with your genes, affecting which genes are expressed or turned on. It shows you the important steps you can take to improve preconception nutrition and reduce toxins in your home and body to consciously help your child be healthy, smart, and strong.