the recording pc is undergoing a lengthy chkdsk that is going to slow me down. again. but i'm closer to being done, now.
i'm still awaiting these zinc results, but, i'm thinking about the long term "naturalness" of taking iron pills and wondering - what is the most likely way that humans evolved to absorb iron?
i mean, one of the symptoms of iron deficiency that i uncovered was something called "pica" - a craving for dirt. this is pathologized in the literature, but how much sense does that really make? i have a tendency to pull back on things like that and ask if there's an evolutionary process at work, rather than a disease.
this is interesting:
they say they can't figure it out, but it seems to be rather obviously linked to mineral deficiencies and rather obviously something that was lost in the shift from hunter-gatherer to agricultural societies. and, if it's women that have a stronger prevalence of the craving, it makes sense to think that what they're craving is, specifically, iron.
another thing to think about is the way we eat plants nowadays compared to how we evolved to eat them. fruits, vegetables & spices, nowadays, are these semi-plastic items that have been sanitized to sell the shiny coatings on them. we even spray them with chemicals to make them sparkle in the store. but, when our ancestors ate a potato or a beet or a carrot, not to mention spinach or lettuce, they ate the soil with it - and got a higher mineral count from it, as a result. this would have been true for hunter gatherers and for subsistence farmers, all the way up until the oil & pesticide era clicked in in the middle of the last century.
so, we're fed this line about getting iron from meat, and i've already debunked that - it's just empirically false. even full on carnivores get upwards of 60% of their iron from plants. with all of the other health problems associated with meat, it seems daft to increase your meat to get more iron, specifically. and, as i've said before, if i'm going to do this, in the end, i'm going to look for some kind of seafood. i need zinc results.
and, how weird is just eating iron shavings in the first place? we have examples of very ancient mines, upwards of 100,000 years old. eventually, iron becomes a precious commodity, used to fashion tools. but, how did we interact with iron before the iron age?
so, if we initially evolved to get our iron from dirt and maybe even actually from eating iron, this idea of taking pills becomes a lot less space age - and potentially even quite primal. the centrality of meat eating didn't happen until a little later on in the process, and would have been correlated with moving into colder climates (and may have even been caused by scarcity in vegetation during an ice age). for that reason, iron absorption would both increase as you move into colder climates and also shift towards heme along with a more central focus of meat in the diet. but, that's kind of what i'm getting at, in my supposition that i'm ultimately genetically pre-conditioned for lower iron absorption because i'm genetically descended from populations that lived in warmer climates.
maybe it's the way we evolved to do this, anyways.