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.
You can now sell your own stuff on Amazon. The Contact number for Amazon is 0844 385 1247 and the team will be able to help you with any queries you may have. You can sell things as an individual whenever you wish, or you can make it more of a business and sell goods through Amazon as a âProfessionalâ.