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.
An eBay seller is obligated to describe the item honestly and in detail. You can ask an eBay seller a question if it isnât answered in the item description or in the pictures provided. To ask a seller a question, click the Ask a Question link in the Seller Info box. Youâll be taken to a page that has links to common questions. Click the question that matches your query and see whether itâs been answered. If not, click the Contact Seller link.