Giving vitamin D supplements to kids who don’t have enough of it can boost their vitamin D blood levels, but it doesn’t always help them grow taller, develop faster during puberty, or feel better if they have asthma.

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Evidence from Studies

Supporting (1)

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Micronutrient deficiency and supplements in schoolchildren and teenagers

Narrative Review

2024 May 1

The study says giving vitamin D pills to kids with low levels does raise their vitamin D blood levels, which matches part of the claim. It doesn’t say anything about whether it helps kids grow taller, start puberty, or feel better from asthma, so it doesn’t contradict that part either.

Contradicting (0)

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Micronutrient deficiency and supplements in schoolchildren and teenagers

Score: 1

DOI: 10.1097/MCO.0000000000001027

Similar Assertions

Scientists use your genes to guess how much vitamin D you’ve had over your life, and since these genes don’t change much as you grow, they can help estimate your vitamin D levels even when you were a kid—even though the data was collected from adults.

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Being taller doesn’t cause your body to have more or less vitamin D—any link you see between height and vitamin D is probably because taller people spend more time outside or have bigger bodies, not because height directly affects vitamin D.

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