Very few foods naturally have vitamin D. Fortified foods provide most of the vitamin D in American diets. 1  Fatty fish such as salmon, tuna, and mackerel are among the best sources.  Beef liver, cheese, and egg yolks provide small amounts.
Note: To contact a Seller requesting an invoice for an item Fulfilled by Amazon: 1  Go to Your Orders. 2  Click on the Seller's name, located below the item title. 3  Click on Contact Seller in More Information. 4  Fill out the information request form.
On the Amazon website: 1  Go to http://www.amazon.com. 2  On the upper right hand side look for the âYour Accountâ menu. 3  Mouse over the âYour Accountâ menu item and when the menu displays, look toward the bottom for âYour Android Apps and Devicesâ and click it. You may be asked to sign-in with your Amazon.com credentials if you are not signed in already.