Although it’s not a plant, eggs contain Vitamin D, an important vitamin for healthy bones and skin that’s hard to find in foods. The sun remains the best source of Vitamin D, and this may appear simple. However, deficiency in Vitamin D is a well-known problem, especially in older adults.
A focused review on Vitamin D and the skin concluded that a deficiency could have significant ties to disorders including skin cancer, psoriasis and ichthyosis, as well as autoimmune skin disorders such as vitiligo, blistering disorders, scleroderma and systemic lupus erythematosus. Atopic dermatitis, acne, hair loss, infections and photodermatoses were also noted as being related to insufficient amounts of Vitamin D.