Food Technology Magazine | Research
How Much Vitamin D Is Too Much?
With fortified products now ubiquitous, the food industry faces new questions about how much vitamin D is too much—and how to deliver it responsibly.
One cup of fortified milk contains about 100 IU of vitamin D. © gavran333/iStock/Getty Images Plus
It’s not hard to find a vitamin D–fortified food or beverage product. Companies have rolled out a steady stream of them over the past few decades. Orange juice, milk, yogurt, nondairy milk alternatives, and breakfast cereals with added vitamin D can be found in almost every grocery retailer, and a multitude of vitamin D supplements line store shelves. This makes sense, given that few foods naturally contain vitamin D. But is it possible to have too much vitamin D? And if so, what are the implica…
