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.
If you need to file a complaint, you can contact the Amazon customer complaints department in a number of ways If you have any complaint regarding your order, or the services rendered or the product is broken or facing any difficulty handling the gadget etc, you can dial the Amazon customer complaint number 0800 279 7234, the Amazon complaints team will make best of their efforts to resolve the issue.