Nutrients-101

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It's officially essential, most of us under-eat it, and almost nobody talks about it.

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The mineral that moves oxygen — essential to get enough of, and dangerous to overdo.

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Essential, cheap, easy to get from food — and routinely taken in doses far past the point of usefulness.

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The one supplement a lot of people genuinely do need — in the right amount.

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A small mineral with an outsized job — and an easy one to overdo.

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Three different molecules wear the same 'omega-3' label — and they're not interchangeable.

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One methyl group, a billion reactions a second, and a whole industry of overselling.

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The bone mineral everyone knows about and almost nobody doses thoughtfully.

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A tiny daily requirement with an outsized job — and a sneaky absorption catch.

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Twenty small molecules do most of the structural work in your body.

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One of the most quietly important minerals you're probably under-eating.