READ THE ENTIRE INGREDIENTS LIST!!!
I saw this in the store today, and I did not take a picture but a picture of it is available online:
I'll link the product so you can see it truly does not say that "Contains: Wheat" statement it's supposed to, especially since wheat is the third ingredient.
I wasn't expecting this to be wheat free, to be honest, because none of Knorr's stuff is, but I was interested and I am in the habit of just picking up products and scanning their ingredient list.
In case the link doesn't work, the product is called Knorr Creamy Alfredo Pasta Sauce Mix, 1.6 Oz Regular Pouch.
I don't know if this is against the law, but either way this shows exactly why you need to read the entire label. I always thought it didn't matter, that they have to put a contains wheat statement. Seems it does matter.