People who naturally have more vitamin D in their blood tend to grow taller as they develop, which might mean their bodies are more focused on building muscle and bone rather than storing fat.

Evidence from Studies

Supporting (1)

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Causal relationship between vitamin D and adult height: A bidirectional Mendelian randomization study

Computational/Algorithm Study

2025 Aug 29

This study used genes to show that people born with naturally higher vitamin D levels tend to be taller as adults, meaning vitamin D helps you grow taller — which supports the idea that it boosts body growth.

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Similar Assertions

Having more vitamin D in your body might help you build more muscle and store less fat, directing your body’s energy toward making lean tissue instead.

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People who naturally have more vitamin D in their blood tend to be a tiny bit taller as adults—like a small nudge in height—not much, but it’s a real pattern scientists noticed.

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People who naturally have more vitamin D in their blood tend to be a tiny bit taller as adults—like a small nudge in height—because their bodies have had more vitamin D throughout life.

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If you have more vitamin D in your body, your body burns more calories while you're just sitting still—even if you don’t move more or eat differently.

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In people who are overweight or obese, having more vitamin D in their body seems to be linked to how many calories they burn at rest, and this link happens because of how their body uses the vitamin D receptor gene — but not because of the PGC-1α gene.

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