Lip balm won't fix this. Called Angular Cheilitis, these painful splits are often caused by fungus thriving when you're low on Iron or Vitamin B2. Eating B rich foods like eggs, spinach, or Your lips can speak louder than you think Dry, cracked, pale, or dark each tells a story about your inner health. From vitamin deficiencies to hydration issues, your lips are 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 Clinical features at the first visit; (a) Dry and exfoliative lips; (b) Download Scientific Diagram What Vitamin Deficiency Causes Dry Lips?