rxpjks, yes, I saw that even waaay back when I was on Active duty. I lifted weights pretty much most of my life back at that time. Staying at the 171 lbs.[IIRC] was the standard for my height. That was always a challenge.
And I didn't, don't, never did or will ever look anything like the Rock !
I remember being in the Bde gym. And the Bde Cdr was in there working out. He told[ordered !] me to stop lifting such heavy weight. I was getting too big. So I did.
And believe me, I didn't think I was that big or even lifting weights that heavy. And I'm not kidding, seriously I was not that big or lifting very heavy weights. But the BC's intent was clear … I/we had to stay a 171 lbs, etc. So most of the time I did … Those were Army standards. Whether I/we liked it or not.
I also always thought that C-Rats being @ 2000-3000 calories was way too high for general training. Those calories may be expended in actual "combat" or e.g. at RANGER, etc. type training.
Hence the "C" in "C-Rat" = Combat – Rations, as we know. And it was generally meant to be for 1 day's consumption, i.e. 1 C-Rat/day. But just going to the Range, etc., no way would you expend that many calories. Even e.g. including a long march to & back from the Range, etc.
Part it is being disciplined to just eat less and expend more calories. But as many know that is not always very easy …
Plus as mentioned this is generally very much a 1st World problem. Many places on the planet is still struggling to get enough calories just to survive.