I've got a problem, I don't want to give up bodybuilding and my 95kg frame, I get bad reactions from grains, and I realize I spending a thousand or two extra on meat every year for the rest of my life has a dramatic impact on how much I will have to work.
This is a place where many unique interests intersect and I've seen some people who understand the Paleo diet here, so I hope some of you have grappled with this question: where can I get a large percentage of my protein from without breaking the bank?
I've had a lot of success over the last 7-8 years being on the Paleo diet and overcoming issues that people, including my doctors and dermatologists, often believe are not impacted by nutrition. Number one was acne, which was severe and now completely absent, and the second is seasonal allergies, which flare up immediately when I have some gluten containing foods, but are absent otherwise. I want to stick to the diet as closely as possible while trying to incorporate a "safe" protein rich food in order to reduce my expenses dramatically.
I've resigned myself to accept that a grain or legume based option is probably the cheapest source of protein, and then look at how to minimize the negative impact on long term health.
Right now all signs point toward soaked and pressure cooked lentils. There are a few studies on Pubmed showing that pressure cooking lentils destroys most of the antinutrient properties, including lectins and a large portion of the saponins. The soaking drastically reduces phytate content. I am unaware of the impact of pressure cooking on their trypsin inhibitor content (which is very relevant for protein digestion).
I've done the math, and at an average bulk price it seems to be about 20 cents per 26-30 gram of protein serving of lentils, which surely beats a can of tuna or anything else paleo.
If anyone has other suggestions I would love to hear them (for various health reasons I am not willing to have soy, peanut, or wheat protein sources).