5. Fatty acids
They are also called omegas. These fatty acids can be found in a wide spectrum of foods. Most of them are incredibly delicious and super healthy. You can find such products at the local supermarket throughout the year and enjoy different dishes. Eat salmon or prepare some salad and add walnuts. You can try a smoothie with flaxseed too. Not only can the mentioned products make your hair, nails and skin look glowing and silky. They can also help you cope with stress.