Why have the body heat up frozen drinks when you can serve the body already heated drinks which help the body to even burn more effectively.  Do you think it is a coincident that practically every American drinks are cold?  Don't take my word or any one word, listen to the body.  The body will let you know if it is being abuse through  pains and feelings.  Take the challenge and try to drink only cold drink with your meals for one week and document how you feel then switch to only hot drink for a week and feel the difference first hand and let your body be the judge.

Basically, you said it: the body has to 'heat' up when eating or drinking cold, so thus, it takes 'energy' to do that, resulting in calories burned. When your body 'shivers' from cold, it's trying to heat up- and burns calories doing that.  This was done by the scientists from Popular Science Magazine.  They proved it right then.  However, they only applied this to 'drinks'.

Thanks for the conversation.

the body need the food to convert into energy and body heat.  If the food is on ice, wouldn't it will take longer for the body to warm it up then if the foods already warm by the drink.  Just when the body warm up the drink to body temperature you are ready to drink again to chill the body.  Metabolism mean burn not chill.  Chill mean store notburn. The body can bring the oil to body temperature is true but does oil break up at 98.6 degree or you need hotter water?