Which nutrient is not essential for healthy gums and teeth?

Calcium, Vitamin D, and Fluoride are essential vitamins and minerals for the teeth and gum. Calcium keeps the teeth strong, enabling us to cut the food particles for easy digestion. Vitamin D helps in absorbing minerals like calcium for the enamel. Fluoride prevents tooth decay, which is why toothpaste uses them. Iron is not an essential mineral, but folic acid helps to maintain healthy gums. Egg, milk, leafy vegetables, and small fishes are good for adding these minerals to the body. Overuse of sweets and sour food items affects the health of teeth and gums. Zinc and Vitamin C are also some minerals that help to maintain tooth health.