The oral microbiome is the new frontier in human health. The microbes that live in your mouth can cause or prevent cavities, gum disease, or bad breath. But the oral microbiome doesn’t stop there. It has far-reaching impacts on your brain, metabolism, joints, heart, and lungs. The gut microbiome has gotten the lion’s share of the attention but it’s high time that the oral microbiome had its turn. With over 700 species, the mouth is the second most biodiverse microbiome in the body. In this book, we will explore the magnificent oral microbiome and how keeping it in balance can promote health from head to toe. We will review the evidence about oral health and natural, safe things you can do to optimize your oral microbiome. It may be the single most important thing you can do to protect yourself from disease.