Of course this is untrue
Serving size at any restaurant (fast food or otherwise) is based on the portion they serve you
Normalizing it is ridiculous
Can you imagine "normalizing" a portion at the Cheesecake Factory and trying to claim that said smaller portion is healthy and within guidelines for food consumption
You walk into McD and order a Big Mac you get a Big Mac
You walk into a pizza place and order a Slice you get a Slice (and I dunno how fat you are but I have NEVER heard of anyone ordering multiple slices for a meal but whatever)
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Of course portion size matters, if you compare ONE Oreo to a Dairy Queen Hot fudge sundae, you need to normalize for a similar quantities of something.
A single slice of pizza is in no way comparable to an entire big mac.
You have to 'gross up' the pizza to compare fairly.
You have to either equalize per calorie, per grams of protein, or per something else.
Ok, so compare a Big MAc with a Boston Pizza Small Pizza then
..................................................Big Mac..................Boston Pizza individual pepperoni Pizza
Calories ...............................550................................710
Protein.....................................25...................................35
Carbs........................................45..................................89
Saturated Fat...........................11....................................12
so where's the big difference? The main number that is significantly different is the carbs in a pizza, nearly double.
But, again, the numbers need to be fairly compared on the basis of some common denominator.