Fungus is a normal, natural inhabitant of the oral microbiome. Candida is the most well-known oral fungus. Sometimes called “yeasts,” Candida lives in people’s mouths, intestines, and on their skin. One in two adults has Candida species living in their mouth.4 In small to moderate amounts, it is normal and does not cause a problem as long as the immune system is in good working order. However, Candida can get out of balance for people at risk. Certain factors make a person more likely to have Ca...