Vitamin C, E and B 3 are extremely essential for maintaining skin health and cracked heels can be a sign of deficiency of these vitamins, especially in poorer countries. According to expert dermatologists, it is quite rare to spot cracked heels that are a result of vitamin deficiencies, but they are more commonly associated with other medical conditions like eczema, diabetes, hypothyroidism etc. Despite these stats, it is important to acknowledge cracked heels and know the role of these three vitamins in maintaining skin health.