This document discusses the nutritional influence on periodontium. It begins by stating that nutritional deficiencies alone cannot cause gingivitis or periodontitis, but can affect periodontal condition and exacerbate plaque-induced inflammation. It then discusses various nutritional deficiencies and their oral manifestations, including alterations to lips, oral mucosa, gingiva and bone. Key sections explore the roles of carbohydrates, vitamins, antioxidants, and minerals on periodontal health. Specific vitamin deficiencies like Vitamins A, D, C, and B-complex are examined in depth for their periodontal effects.