None of what you just said is entirely true. Beans, Lentils, Rice and Oats all consist mostly of starches, which are broken down slowly over the digestion proce

None of what you just said is entirely true. Beans, Lentils, Rice and Oats all consist mostly of starches, which are broken down slowly over the digestion process and contain many indigestible starches or fiber to fill you up and promote body health. Not to mention that beans and lentils are about 2:1 carb to protein content and they all contain some level of other micro-nutrients (vitamins/minerals). Not all carbs are the same, and many junk foods are spiked with glucose/fructose sugars that break down quickly and create the spike you're talking about.