“Our diets can play a huge role in the health of our hair, skin, and nails, for better or for worse,” says Colleen Christenen, RDN at Setton Farms. Here are her top five foods to include in your diet for healthier hair and nails—no $400 collagen cream required. Sunflower seeds are packed with antioxidants essential for healthy skin, too. Specifically, they may help protect the skin from free radical damage from the sun’s UV light. Vitamin E is also an anti-inflammatory agent, which means it may help decrease swelling and puffiness. RELATED: The 8 Best Foods to Eat for Healthy-Looking Skin Healthy fats, such as those found in pistachios, have also been shown to reduce hair loss and increase hair density and hair diameter. Cukes are also a great food for radiant skin— higher intakes of water have been shown to have a positive impact on skin physiology than lower intakes, allowing your skin cells to function optimally. Lack of hydration can also lead to common skin problems such as dry, tight, or flaky skin, and can also lead to becoming more prone to wrinkling. RELATED: 7 Anti-Inflammatory Foods to Eat Every Day for Long-Term Health and Happiness