Dairy Queen (USA / Canada)

The following is taken from MCG's Canadian website:

 Dairy Queen International? informed MCG on December 17, 2008 that they will not guarantee about Kosher/Halal status of their products because different stores in USA/Canada buy the food products from different suppliers. Some suppliers provide kosher certified food products and some do not.

Following are the ingredients for the Dairy queen Chocolate Sundae:. The sundae contains mono and diglycerides which could be either animal or vegetarian...

INGREDIENTS - Dairy Queen Sundae, Chocolate - Large

Chocolate Topping: Glucose-fructose, cocoa, water, modified corn starch, salt, potassium sorbate, artificial flavour.

Dairy Queen Vanilla Soft Serve: Modified milk ingredients, sugar, glucose, mono and diglycerides, guar gum, polysorbate 80, carrageenan and artificial flavour.

Source
Source for ingredients