doctordemen

> It also appears you're ignoring evidence that contradicts what you're saying, or at least choosing to not take it seriously.

Do comments on HN count as "evidence" to you?

> You're repeating things that are not difficult to prove wrong with an air of superiority.

I guess we're cut from the same cloth then.

Please drop the ad hominems, they do not serve to strengthen your argument. I have no idea what Joe Rogan circles talk about, eat beef at most 1x per month, and despise those who would reduce every discussion to culture war.

I'm asking a simple question, for my education. Can you provide a citation or any information about natural vegan B-12 sources? I haven't found anything, except that all vegan organizations recommend supplementing vegan diets with industrially synthesized B-12.

> You're either making wild assumptions or you've read some real sketchy stuff about dieting. Either way what you said isn't true and you seem to be repeating Joe Rogan type stuff about vegan diets.

Huh?

> Supplementing b-12 is easy. Getting it from natural vegan sources isn't hard.

Citation needed.

> the last of that nutrient has precisely been vitamin b12

What makes you so confident that this is the "last"?

I've never posted before today. But even I know ad hominem attacks are forbidden here.

Anyways, it's just saying. I am criticizing your comment - is it surprising that someone who managed to remain a lifelong vegan doesn't crave meat? What exactly does this demonstrate? What about people who couldn't pull off veganism?

Holy selection bias Batman

> Animals don't synthesise B12, bacteria does.

Yes, that's technically correct.

> Animals cumulate it from eating food grown in soil.

No.

Animals provide a hospitable environment (gut) for said bacteria to exist and synthesize. So while technically the animal's cells are not the ones directly synthesizing B12, the bacteria and animal gut are working in harmony to do so.

These facts are tangential to my point. The commenter I responded to said that people don't need to eat animal products to live at optimal health, which is laughable, and this is an incredibly clear example of why. A quick google search will illuminate the dangers of B12 deficiency.

And one more thing to consider, if humans coevolved with the animals they eat, how can we be so certain that simply supplementing a few vitamins found in animal products is a sufficient replacement? We hardly understand human metabolism at its most basic level, it's quite a stretch to think that we've cracked the code on the "essential" nutrients we would have received from consuming animals.

Vitamin B12 being synthesized exclusively by animals should be an indication that

> I don't think anyone needs to eat animal products to be at optimum health

might not be the most accurate position to hold.