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Let's talk a little bit about nutrition, specifically minerals.
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So minerals are solid inorganic substances that form crystals, and they're classified depending on how much of them we need in our diets.
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So there are trace minerals like selenium, zinc, iron.
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They're only required in a few milligrams or less.
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And then there are macro minerals, such as.
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Calcium, magnesium, sodium.
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They're required in hundreds of milligrams.
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So they function in structural regularity and metabolic capacities.
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So building up bones and teeth are an example of structural function.
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So it would be calcium.
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Maintaining fluid balance, building bone tissue, transmitting nerve impulses.
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These are examples of regulatory and metabolic...