1 Each additional ounce will cost $0.22 (up one cent from 2014). 2  Postcard rates will increase by one cent to $0.35 from $0.34. 3  Media Mail will see an increase of 6.2% in 2015. 4  Rates will start at $2.72 (1 lb.), up $0.03 compared to 2014.
Vitamins and minerals are nutrients that the body requires to function properly. Vitamins can be fat-soluble or water-soluble. The fat-soluble vitamins are vitamins A, D, E, and K. Fat-soluble vitamins dissolve in fat and are stored in the body.
Vitamins and minerals work together in your body in very complex ways, affecting each other's absorption and processing and influencing how your body functions. When you get your vitamins and minerals through eating foods, it is often easier for your body to maintain a balance of these nutrients. When you take a supplement, such as a vitamin C or E tablet, you're getting a highly concentrated dose that you would probably never get from food.