[notyourloops]

One issue I've seen when assessing some of the vegetarian or other plant-based diets proposed has been neglecting to account for protein. Most men at least don't enjoy the muscle loss associated with eating a low-protein diet, which is what the implementations I've seen often look like.

That said, Americans are predominantly overweight and obese. A diet high in protein but low enough in total overall energetic content is an excellent recipe, when paired with weightlifting and a few days of cardiovascular activity, for improving musculature and eliminating fat.

A scientific example demonstrating this point, entitled "Higher compared with lower dietary protein during an energy deficit combined with intense exercise promotes greater lean mass gain and fat mass loss: a randomized trial": https://academic.oup.com/ajcn/article/103/3/738/4564609