The most important way that diet affects your oral health is that the vitamins and minerals that a good diet provides nourish your teeth and your gums.
Ingesting good foods in balance provides you with all these nutrients to keep your gums healthy and your teeth healthy. Calcium, iron, vitamin B3, vitamin B12, vitamin C and vitamin D are generally found in foods like cheeses and dairy foods, leafy greens, wild salmon, green tea, celery, apples and carrots. These are all examples of foods that provide minerals and vitamins that are necessary for healthy gums and teeth.
Without them, you end up with gum disease, plaque formation and tooth decay. You lessen the strength of the enamel in your teeth, causing the onset of decay more rapidly. Due to the vitamin deficiencies by not eating foods that are rich in these vitamins, you end up with bleeding gums and plaque formation.