Vitamin B12 deficiency symptoms: Cracked lips on the sides of the mouth is a warning sign Express.co.uk Vitamin C Deficiency Causes, Symptoms and Preventive Tips 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 Experts Reveal the Everyday Symptoms that Indicate a Vitamin or Mineral Deficiency 72Point Talking Points