
Originally Posted by
GThreepwood
Lean cuts of meat seem cool and at the same time, if you want to avoid "refined" foods, then you may want to cut down on lean muscle meats, cause you're essentially "refining" the animal down to one specific type of meat and only eating that. Just like refining sugar down to one part, or taking off the husk of rice and calling it "refined white rice" etc. The possible issue with only eating muscle meats is that their is a high concentration of tryptophan and cystine which can overburden your system. Tryptophan can convert to serotonin, which can be good potentially, probably mostly if it's in your *brain* (but that's even under debate) but most of the serotonin ends up in your gut, and too much can be a not-so-good-thing. Also cystine can be a thyroid antagonist and slow your metabolic rate and lead to other issues. Better "cuts" of meat are probably gelatinous cuts, like stuff you have to slow cook, or BBQ to break down the connective tissues. Those are much less rich in tryptophan and cystine, and still have all the protein goodness. They also have lots of "collagen" which can be really good for you as well.