Kelp is rich in 23 minerals, including chlorophyll, folic acid, vitamins A, B12, D and iodine. Iodine is important in a healthy diet because the body doesn’t naturally store it and it’s essential for a functioning metabolism. The vitamins and minerals kelp contains can also help keep the skin nourished and moisturized. Use: Try sprinkling Kale Powder on your entrees, soups and salads. It’s perfect for enhancing your green smoothies. Because of the iodine in kelp, be careful not to use daily for more than 2 weeks at a time. This will prevent you from receiving too much iodine in your diet.