I often eat complemented processed food (~1serve/day) primary to transform lazy-meals (fries, pizza, sandwiches…) with a lazy-healthy meal. When I stopped flesh those became even more useful.
I recommend the bars (no preparation) and the "pots" (salty meals). Shakers are good and cheap. All seems very balanced and complete nutritiously.
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* No weird yeast or fungal ingredients -- living or dead. I get fatigue after consuming that stuff. My body doesn't respond well to it. I suppose the most ordinary sort of mushrooms are probably OK.
* No eggs, they're pretty suffering-intensive: https://sandhoefner.github.io/animal_suffering_calculator
* Minimally processed ingredients preferred.
* Infuse with iodized salt, healthy fats, and spices for flavor. Overall good taste is much more important than replicating meat flavor/mouthfeel. I assume if you iterate on the spices enough, you can come up with something that tastes incredible.
I'm imagining a heavily fortified, compressed bean patty of some kind. I suppose with beans you'd have to account for phytates interfering with nutrient absorption, though.
There's an article here which discusses and embeds the video: https://barbend.com/clarence-kennedy-vegan-diet/
https://forum.effectivealtruism.org/posts/dbw2mgSGSAKB45fAk/...
Really I want to see vegans do a comprehensive investigation of every last nutrient that's disproportionately found in animal products, including random stuff like beta-alanine, creatine, choline, etc., and take a "better safe than sorry" approach of inventing a veggie burger that contains all that stuff in abundance, and is palatable.
I suspect you could make a lot of money by inventing such a burger. Vegans are currently fixated on improving taste, and they seem to have a bit of a blind spot around nutrition. I expect a veggie burger which mysteriously makes vegans feel good, gives them energy, and makes them feel like they should eat more of it will tend to sell well.