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Factory farming exists pretty much everywhere though. If just 50% of people reduced their meat intake to an occasional treat, that would go a long way to reducing suffering, improving sustainability, and increasing the availability and affordability of vegan products. That doesn't mean that any given individual needs to be vegan, just that encouraging widespread veganism is beneficial to everyone.

I'm sorry if my post came off as "Just eat s bunch of soy beans," because that isn't what I meant. Rather, it seems viable to eat a lot of plants and supplement with animal products where needed, especially given that there's also a pill form.

Also I don't think the 550mg figure is meant to be a recommended minimum intake, but rather a figure where it's impossible to be deficient. It's my understanding that a minimum intake of choline hasn't been established. From Wikipedia:

Insufficient data is available to establish an estimated average requirement (EAR) for choline, so the Food and Nutrition Board established adequate intakes (AIs). For adults, the AI for choline was set at 550 mg/day for men and 425 mg/day for women. These values have been shown to prevent hepatic alteration in men. However, the study used to derive these values did not evaluate whether less choline would be effective, as researchers only compared a choline-free diet to a diet containing 550 mg of choline per day. From this, the AIs for children and adolescents were extrapolated.

Twelve surveys undertaken in 9 EU countries between 2000 and 2011 estimated choline intake of adults in these countries to be 269–468 milligrams per day. Intake was 269–444 mg/day in adult women and 332–468 mg/day in adult men.