What is the average amount of gluten taken daily in the standard diet?

The average gluten-containing diet contains between 10 to 40 grams of gluten per day.
 That estimated amount is based on the quantity of gluten in the average slice of wheat bread, which contains around  5 grams of gluten (10% of the total weight), and the amount of gluten in one serving of pasta, which is about 6.5 grams of gluten (11% of the total weight).