I don't see anything in what you quoted that says total caloric intake has increased. The first sentence says grain calories increased and red meat decreases eq

I don't see anything in what you quoted that says total caloric intake has increased. The first sentence says grain calories increased and red meat decreases equally, which would be no net change in the total of grain plus red meat calories. The second sentence says butter and eggs dropped and vegetable oil went way up but doesn't say whether or not one of those changes was bigger than the other.