The issue with the PB&J is that it's > 700 calories (440 just from the PB, call it 100 for a TBSP of jelly, probably 100-200 for the bread), whereas a grilled chicken breast might give you 30 G of protein with maybe 250 calories. If you were getting 150G of protein from PB alone, you would have to eat ~3.5k calories.
Some more data points:
* 150 g of protein from lentils: 1.9k
* 150 g of protein from chickpeas: 2.9k
* 150 g of protein from grilled chicken breast: 750
* 150 g of protein from whey powder: 675
* 150 g of protein from egg whites: 640
My experience is that I don't need to worry much about "getting meat in" when I'm bulking up, but when I'm cutting calories to lose weight (and trying to keep protein extra high in order to maintain lean mass/increase satiety -- I'll have as much as 200-230g per day on maybe 2400 total calories), it's really tough to hit without having a lot of lean meat in my diet.
I do cut calories (I bulk at maybe 3500 and cut at maybe 2500), I'm mostly saying that I find it much easier to feel full on a very high protein diet. I also believe there is some research suggesting that you should err on the higher side of the acceptable range when in a deficit. I would be nervous eating 150 G of protein in an extended deficit, weighing ~175 lbs.
I think the point being made is about the "density" of protein per serving. Sure you can get 75 from PB but that would also give you diabetes, and excessive fat too.
Same goes for plans, yes in powder form it's a few scoops but you probably would be way too stuffed if you eat the actual veggies.
On the other hand, 95% of Americans don’t eat enough fiber, which means they aren’t getting any of the other benefits of plants like vitamins and antioxidants.
I’d wager that’s much more important than the average muscleless flaboid getting 150g protein.
Some more data points:
* 150 g of protein from lentils: 1.9k
* 150 g of protein from chickpeas: 2.9k
* 150 g of protein from grilled chicken breast: 750
* 150 g of protein from whey powder: 675
* 150 g of protein from egg whites: 640
My experience is that I don't need to worry much about "getting meat in" when I'm bulking up, but when I'm cutting calories to lose weight (and trying to keep protein extra high in order to maintain lean mass/increase satiety -- I'll have as much as 200-230g per day on maybe 2400 total calories), it's really tough to hit without having a lot of lean meat in my diet.