What they don't tell you is that MSG also tricks your body into thinking that you're eating a nutrient-dense meal when you may only be eating something very nutrient poor, like Doritos. Virtually every chip (crisp) flavoring contains MSG as a flavor enhancer. So your body turns up stomach acid and enzyme production to 10 while your food is only a 1. As a result, the food is processed very quickly by the body and you feel full for a shorter period of time followed by a sharp, gnawing hunger because your body still thinks it is digesting a heavy meal. While the original intent may not have been to manipulate the masses into eating more junk food, that has become the unfortunate end result.