Amazon.com, Walgreens or Active Forever all carry Ensure pudding. Walgreens offers the cheapest price for this product, at $6.50 for a pack of four pudding cups as of 2015.
Retailers generally sell this product in packs of four pudding cups. Each serving is 4 ounces. Amazon.com offers a package of Ensure pudding for $11.50, or several options for buying the product by the case. Active Forever offers a case of 48 pudding cups for $50.
Ensure pudding contains supplemental vitamins and nutrients. Those who are underweight or have fluid or volume-related dietary restrictions generally use this as a dietary supplement.