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.
1 We recommend that you select the first option: I want to access my own Amazon seller account with MWS. 2  Click Next. 3  You are asked to read and accept the Amazon MWS License Agreement. 4  Check the check box, and then click Next. 5  Your Access Key ID and Secret Key are generated, and displayed for you.