Hello, u/Adhiraj and I independently did some research and the only good source of methionine we found is brazil nuts, which of course you probably don't want to eat much of since they can give you selenium poisoning.
The conventional wisdom is to just eat more protein to compensate for the poor amino acid balance, but you're going to be eating a lot, so I prefer to supplement methionine.
I have adding methionine in meals I cook and adding it to the plant based protein powder I use, precisely measuring how much I add. You can get individual amino acid supplements from iHerb and some larger health food shops.
Some sources of vegan protein go much much farther doing this (e.g. red lentils). I tend to eat soy TVP which goes somewhat further with methionine supplementation.
I also have a pure EAA protein powder which is entirely fermented and have a balanced amino acid profile. These are generally very poorly marketed supplements but they are widely available.
There's no need to add it to your food rather than mix it in a drink, other than you probably want to get all your amino acids around the same time, and it helps if you're doing meal prep and you don't need to work out how much to supplement every time you go to eat.
There is apparently research suggesting that too much methionine can increase the risk of type 1 diabetes. I'm not going to go into that, but it makes sense to err on the side of not over-supplementing methionine.
We have been use this tool to help work out the amount of methionine we need to supplement, but it's not a pleasant user experience: https://tools.myfooddata.com/protein-calculator
This is just my quick answer from memory, I may do a full writeup later.
Some thoughts as someone who has been eating plant-based for the past year and who thinks about the ethics constantly for fun:
I'd say that not eating animal products seems like the correct choice if you can pull it off without too much trouble. It probably makes more and more sense the older you get. If you can afford to change your diet but not exclude animal products entirely, consider eating kangaroo if your country doesn't ban its import. Consider eating kangaroo anyway.
There's an analogy being drawn between the power of a hypothetical advanced alien civilization and the power of a superintelligent AI. If you agree that the hypothetical AI would be more powerful, and that an alien civilization capable of travelling to Earth would be a threat, then it follows that superintelligent AI is a threat.
I think most people here are in agreement that AI poses a huge risk, but are differ on how likely it is that we're all going to die. A 20% chance we're all going to die is very much worth trying to mitigate sensibly, and the OP says still it's worth trying to mitigate a 99.9999% chance of human extinction in a similarly level-headed manner (even if the mechanics of doing the work are slightly different at that point).
Given how long it took me to conclude whether these were Eliezer's true thoughts or a representation of his predicted thoughts in a somewhat probable future, I'm not sure whether I'd use the label "candid" to describe the post, at least without qualification.
While the post does contain a genuinely useful way of framing near-hopeless situations and a nuanced and relatively terse lesson in practical ethics, I would describe the post as an extremely next-level play in terms of its broader purpose (and leave it at that).
I think I'm more motivated by the thought that I am going to die soon, any children I might have in the future will die soon, my family, my friends, and their children are going to die soon, and any QALYs I think I'm buying are around 40% as valuable as I thought, more than undoing the income tax deduction I get for them.
It seems like wrangling my ADHD brain into looking for way to prevent catastrophe could be more worthwhile than working a high-paid job I can currently hyper-focus on (and probably more virtuous, too), unless I find that the probability of success is literally 0% despite what I think I know about Bayesian reasoning, in which case I'll probably go into art or something.
Future Whey, sold in Australia by Bulk Nutrients. One small correction: it also has extra BCAAs mixed in (the idea being a large surplus of BCAAs signals muscle protein synthesis more strongly)
You can get a generic EAA powder in other markets, it's just not clear to the typical consumer that it counts as a protein powder.