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Vitamin D is known to be essential to many aspects of human health — but a new study suggests that taking a certain form of it can have a negative effect.

The more potent and longer-lasting form, vitamin D3 (cholecalciferol) is produced naturally when the body is exposed to sunlight and is also found in animal products , while vitamin D2 (cholecalciferol) comes from plant or fungal sources, per the National Institutes of Health.

Researchers from the University of Surrey in the U.K. found that taking vitamin D2 can cause reduced levels of vitamin D3 in the body.

OVERLOOKED SUPPLEMENT COULD SLOW AGING AND BOOST BRAIN AND HEART HEALTH, EXPERT SAYS

They made this determination by analyzing 11 randomized controlled trials

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