While I like BBS (Body by Science) and lift to failure, I think they vastly overestimate the calories per pound you’ll burn. I think Gary Taubes uses 5 or 10 calories per pound. Also, to gain 10 pounds of muscle, even if you’re a young man with great genetics, takes a while – a year? And if you’re not that, it takes a lot longer. According to DEXA scans, I gained 3.3 pounds of muscle in a year as a 52 year old man, and that’s when recovering from shoulder surgery (think a tremendous loss of muscle mass, starting from near “zero”.). Even if 35 calories/pound is correct, that’s a bite or two of extra food per day.
This is why exercise rarely helps with weight loss.
And everything vastly overestimates calories burnt. For instance, I have a stand up desk where I stand about 35 minutes and sit 55 minutes. At the end of a workday, it tells me I’ve burnt 700+ calories. That’s completely incorrect. I wouldn’t burn that amount (on top of just, say, sitting) if I jogged for two hours.
I do look better after lifting since my shoulder surgery. But I really can’t tell any ability to eat more since then without gaining weight (and even if I counted calories, which I don’t, the error in counting would be greater than the extra calories burnt, so it wouldn’t be possible to know what actually occurred).