Cracking Skin and Chapped Lips? Your Vitamins Might Be the Culprit! If your skin often cracks or your lips get chapped, you might be dealing with a vitamin deficiency. Low levels of How To Prevent Nutrient Deficiency Related Chapped Lips OnlyMyHealth Dry lips can often be a sign of certain vitamin deficiencies. The most common deficiencies associated with dry lips include: B Vitamins: Deficiencies in B vitamins, particularly B2 (riboflavin), B3 Zara Which vitamin deficiency causes gum bleeding and why? Vitamin C Deficiency: Causes, Symptoms, and Treatment Options Skin findings associated with nutritional deficiencies Cleveland Clinic Journal of Medicine