I'd be quite happy to eliminate red meat/factory eggs from my diet, as my main ethical stance on the issues around vegetarianism/veganism is that of being against the mistreatment of livestock. Similarly, I favor predators which kill their prey quickly, and despise those who eat their prey alive (eg polar bears). But the insect world, OMG: the Carboniferous was hell on Earth.
Anyway, main question: How do vegetarians "beef up" without consuming meat? What's best? I'd like to reduce my red meat consumption but not go all skinny as a result.
Heaps of stuff you can get protein from, while a vegetarian. Quinoa, oats, nuts particularly almonds, beans, chickpeas, dairy. Just off the top of my head, there’s lots more. Getting enough protein is no big deal for a regular guy with regular needs. (As opposed to someone who has particular needs or allergies, or maybe someone into very heavy training, I mean to say.)
Also, eating fruit is good for you. Not sure about the protein content of it, and nor do I know/remember which specific fruit is good for which specific vitamins --- a quick online check will probably provide that info, if you're interested --- but you can get most/all vitamins if you eat lots of fruit, and mix them up not just focus on just the one or two. My own consumption of fruit has gone up many
times over in the last decade or so.
But yeah, if you’re into heavy gymming, for instance, as I used to be (but no longer am), then eggs help. I used to eat them, both because they help with the nutrition, and also because I love eggs. …And yeah, if one wants to lawyer this, then one might argue that eggs are more like dairy than like meat, in the sense that definitely they come from exploitation of animals, but on the other hand you aren’t actually butchering and eating them. But that’s …I don’t know, not quite …not 100% straight, that argument, which is oftentimes used IRL? Me, if I ever find myself really wanting to eat eggs again, then I just will, just the same as any other thing, because I want to, without tyring to defend that decision in those terms.
…Now without a shadow of a doubt going vegetarian without impacting your health adversely takes some thought. Someone that’s putting some thought into their diet and lifestyle generally, will obviously find it easier to eat right if they’re
not vegetarian, obviously, simply because this is a subset of the omnivore’s diet. But it’s doable, if you want to, and depending on your circumstances not too much additional trouble even.