With the possible exception of Wandering Daisy... I challenge any of you to name the backpacking trip you've been on where you think you'd have any issues due to protien deficiency. Ok maybe there's someone else here who does a month out at a time unresupplied. Even through hikers hit towns every week or so and pig out.

yes, it's very nice to have some. but by the time you're splitting hairs over protein quality it's not something that is going to matter on a backpacking trip. You're simply not going to be out that long for this to matter. Especially when you consider the world runs on rice and beans

I wait with bated breath for the day I can take off long enough to have to worry about protien deficiency.. Maybe when I retire.. and even then I expect my better half will have a heck of a lot to say about it.