Candida is a yeast that aids with nutrient absorption and digestion when produced in proper levels in the body; however, if the body’s natural pH balance is upset, candida can quickly grow out of control. With approximately 460,000 cases each year, candida (or candidiasis) is a common yeast infection that can lead to many health problems, from a sore throat to serious stomach conditions. Common causes of candida overgrowth include taking antibiotics, birth control pills and oral corticosteroids; excess sugar consumption; and experiencing too much internal dampness. Candida can cause a white coating on the tongue, headaches, an inability to concentrate, chronic fatigue, sugar cravings and stomach issues. Oral thrush is a yeast infection caused by the same strain of candida that affects other mucous membranes, including the vagina.