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.
Save. When you create a seller account on Amazon.com, you can list and sell a variety of items, such as books, CDs and DVDs. Although using a UPC identifier is one way you can search for and list the items you want to sell, it is not the only way.nter the title or name of the item you want to list in the Search box at the top of the website, then click the Go button. Click the title of the item in the list of results to view the item page. Scroll down to the More Buying Choices box on the right side of the item page and click the Sell On Amazon button.