Dry skin is more than just a cosmetic issue. It can signal deeper problems inside your body. One common cause is nutrient deficiency. When your body lacks essential vitamins and minerals, your skin suffers. I want to help you understand how nutrient deficiencies affect your skin and what you can do to fix it. Let’s dive in! How Nutrient Deficiency Affects Your Skin Your skin needs nutrients to stay healthy, hydrated, and glowing. Without them, it becomes dry, flaky, and dull.