HealthMap

Angular Cheilitis and Nutritional Deficiencies

According to clinical observations at Acu-Cell Nutrition, angular cheilitis (cracks, sores, or inflammation at the corners of the mouth) is most commonly associated with deficiencies in specific B-complex vitamins, though other nutrients can also play a role.

Primary Vitamin Deficiencies

• Vitamin B2 (Riboflavin): This is the single most frequent nutritional deficiency linked directly to angular cheilitis, sore lips, and a magenta-colored tongue.
• Vitamin B6 (Pyridoxine): Deficiencies in B6 frequently manifest as sores at the corners of the mouth, often accompanied by inflammation of the tongue and lips.
• Vitamin B3 (Niacin): Can contribute to angular chelitis, typically when part of a broader Pellagra-related or generalized B-complex deficiency.
• Vitamin B12 and Folic Acid: Megaloblastic anemias resulting from a lack of B12 or folate often present with oral manifestations, including angular cheilitis and sore, smooth tongues.

Contributing Mineral and Nutritional Factors

• Iron: Iron deficiency anemia is a very common underlying cause or co-factor in chronic cases of angular cheilitis.
• Zinc: Low zinc status impairs tissue healing and immune function, frequently exacerbating skin and mucous membrane disorders around the mouth.
• Protein / Essential Fatty Acids: General malnutrition or poor protein absorption can delay the healing of tissue cracks.

Important Considerations

• Malabsorption: Deficiencies are often not just a matter of dietary intake, but can be caused by poor digestion, low stomach acid, or intestinal malabsorption.
• Candida (Yeast) Overgrowth: Nutritional deficiencies often weaken local tissue resistance, allowing secondary fungal or bacterial infections to colonize the cracks at the corners of the mouth, requiring addressing the root deficiency rather than just topical treatments.