sorry, the previous study had a ratio of 1.25.

the 3:2 ratio came from this study, which is very old:

https://bengreenfieldfitness.com/wp-content/uploads/2016/04/mothers-milk-amino-acid-profile-from-biological-chemistry.pdf

it's actually 1.42.

does human milk contain taurine or glutathione?

taurine: yes, but i'm going to stick with my previous deductions, of 100 mg/day.

glutathione: you can't absorb it, so it doesn't matter....

so, the milk studies should suggest a ratio of around 1.25-1.5. 1.5 would be a nice, round upper limit - and i'd have to add in the 100 mg/day for taurine on top of it.

that means if minimum methionine requirements are around 10-11, minimum cysteine requirements would be 12.5-16.5 + 100 mg.

this is starting to stabilize.