health-matrix.org ,breakfast4health.org ,waterloohealthcare.org Change your diet. To restore your gum health, eat organic foods and a diet rich in fruits, vegetables and whole grains. Incorporate flaxseed into your diet for the omega-3 fatty acids; green tea to help cleanse your oral cavity; and Vitamin C and Coenzyme Q10 supplements. Avoid sugar and acidic foods and stop smoking as soon as possible.