Chapped Lips With Chron's Disease, Sjogren's Syndrome and Celiac Disea Red Apple Lipstick 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 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 Cracked Lip Corners? You May Be Dealing With Angular Cheilitis HUM Nutrition Blog