Nuts seem like the perfect snack: they're portable, they keep well, they don't need to be cooked, and they're tasty. Problem: I don't feel good when I eat too many of them. Recently, I started snacking on macadamia nuts, which are high-fat, so I thought they wouldn't be a problem. But my stomach was upset, I got a bit of acid reflux and nosebleeds, and generally didn't feel up to par. Nuts have phytates, which bind to zinc and other minerals. This might have caused my nosebleeds. And I don't know what it is about macadamia nuts, but they don't seem to digest well for me; they felt like they were sitting in my stomach causing bloating. I've felt pretty much the same way eating more than a little bit of nuts or goodies made with nut flour. It could be that nuts are seeds and don't "want" to be eaten. Like grass seeds, they defend themselves by sickening those who ingest them.
Do-it-yourself health. Low-carb, mostly evolutionary.