Part of the article discusses how soft, highly processed, or cooked foods are easier to digest and thus yield more usable calories than hard, unprocessed, or uncooked foods. The implicit conclusion is that the hard foods should be preferred due to the decreased caloric usage.
However, there is a flip-side to it: Having to digest a big, tough-to-process meal can actually cause you to feel tired! By eating soft easy-to-digest food, you leave more of your body's precious energy available for things like, you know, going about your daily activities. (Read _Spent_ by Frank Lipman for more on the topic.)
With that in mind, though, it's still probably better to eat soft easy-to-digest nutritious foods than the all-too-common easy-to-digest processed crap that's devoid of any nutritional value.
However, there is a flip-side to it: Having to digest a big, tough-to-process meal can actually cause you to feel tired! By eating soft easy-to-digest food, you leave more of your body's precious energy available for things like, you know, going about your daily activities. (Read _Spent_ by Frank Lipman for more on the topic.)
With that in mind, though, it's still probably better to eat soft easy-to-digest nutritious foods than the all-too-common easy-to-digest processed crap that's devoid of any nutritional value.