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There are lots of different minerals and other nutrients in bone. Bone is also a multilayered part of any vertebrate's body.

Layer by layer, here is what is in bone:

Periosteum:

Mostly protein and phospholipids. Not much else. This is the membrane surrounding the bone.

Compact bone:

This would be the toughest part to digest because of hydroxyapatite. High calcium and phosphorus in this layer as well as some protein.

Spongy bone:

This would still be hard to digest but not as hard. There is hydroxyapatite here too but not as much and there is more fat. In the spaces within the spongy bone is bone marrow. This bone marrow is by far the most nutritious part of the bone. High iron, fat, protein etc.

In fact per 100 grams of bone marrow, there is 25% of the iron your body needs. This may sound small since we only need single digit milligrams of iron a day but this is actually very significant since most foods have 2% of required iron or lower.

Organ meats are the only animal products with higher iron than bone marrow.

In both of these, Iron is predominantly in the form of Heme which is easily absorbed.

So anyway I was thinking for the pregnant women when I thought that my people should eat bone. More iron is needed so unless you either:

1) Eat a lot of plants frequently(like every 1-2 hours)

2) Eat meat exclusively, less often(this risks heart disease though

or

3) Eat a mixed diet making sure to include bone marrow and/or organ meats often.

you are going to end up with Iron Deficiency Anemia while pregnant.

Worse still meat and high amounts of food increases nausea while pregnant.

So this leaves 1 option for high iron food that doesn't risk worsened nausea as much, bone marrow.

Extra calcium and phosphorus is needed to prevent osteoporosis in pregnancy.

And of course carbs, fat, and protein are in higher demand, especially protein and carbs.

Bone fits all except higher carbs but that demand can easily be resolved with fruit.

So I was thinking that since pregnant women would benefit from eating bone, anybody except for infants and toddlers should have bone as part of their diet. The reason why toddlers shouldn't eat bone? Delicate digestive system.

And of course with infants, eating bone not only risks getting a GI bleed but is also too hard to be digested by infants.

So should my people eat bone given all these benefits, especially for pregnant women?

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closed as primarily opinion-based by JDługosz, Mołot, Anketam, Alexander von Wernherr, Azuaron Feb 8 '17 at 14:30

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.

  • $\begingroup$ I'm noticing a ... pregnancy/infants theme across your questions. 1 2 3 4 5 $\endgroup$ – Zxyrra Feb 8 '17 at 2:45
  • $\begingroup$ 6 7 8 9 10 11; and others. Interesting $\endgroup$ – Zxyrra Feb 8 '17 at 2:46
  • $\begingroup$ @Zxyrra Well everybody has a passion... ;) $\endgroup$ – AngelPray Feb 8 '17 at 3:28
  • $\begingroup$ It depends on the nature of the species of your people. Dogs can eat bone. I’ve heard that such dog food is not safe for humans to eat as it causes bleeding as you describe. But if they’re built to eat that, it’s your choice as a writer. $\endgroup$ – JDługosz Feb 8 '17 at 6:53
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    $\begingroup$ There are species that don't need to send can't. There are ones that can, but don't need. Ones that should, but can do without. And then, ones that cannot be healthy without eating bones. There is no should. $\endgroup$ – Mołot Feb 8 '17 at 7:48
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I’ll answer from the point of view that it’s not a “natural” food for them, and indeed carries risk.

Note that in our own case of humans, we’ve become dependent on external processing of foods: look at our digestive system (and gut size) compared to a gorilla’s.

If they are “people”, they may already be dependent on making food suitable to eat. That means cooking, grinding, separating, etc.

Their oh-so-delicate gut can only handle cooked meat and bread now. So, the bones go into soup, or otherwise have the proteins extracted to make gelatin. Why are BBQ Ribs so appealing? We cook on slow moist heat to make the nourishing part of the bone come out and mix with the cooked meat. The spent rib, now only mineral, gets tossed to the dog.

If they need to harvest bones as a calcium source because they’re not getting enough elsewhere, then they’ll grind it up and add small amounts to bread.

That is, they’ll make it work.

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It depends on the dietary habits: if they have the entire animal available (meaning they are hunters), why should they discard the meat and focus on bones? They can still use bones to make soups or the like, but not as main dish.

If instead they are more like scavengers, feasting on the remainings of other's hunt, than it makes more sense that they rely on bones as supply. But... feasting on a rotting corpse brings additional risks of diseases (which will kill you in days, not in years like heart disease), plus competition with other scavengers.

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