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.
Below is a list of toll free 800 numbers for Amazon.com Customer Service: 1-866-216-1072 Phone Menu Transcription: If you call the number above you will get the options below. Thank you for calling Amazon.com customer service, for quality assurance and training services your call maybe monitored or recorded. For kindle questions press 1 We will connect you to the next available agent, thank you for holding we will be with you as soon as possible.