MINNEAPOLIS — General Mills, Inc. is doubling the vitamin D content in most of its Big G breakfast cereals to provide 20% of the daily recommended amount of the vitamin. Cinnamon Toast Crunch and Cheerios will be the first cereals to feature the vitamin boost, followed later this summer by Honey Nut Cheerios, Lucky Charms, Cocoa Puffs, Trix and Cookie Crisp. The full line of vitamin D-fortified cereals will be available nationwide by the end of this year, according to the company.

The cereal fortification is being promoted as part of the company’s recent Goodness We Grow Up On campaign, which harkens back to the company’s 20-year-old commitment to keep whole grains as the first ingredient of its cereals.

“General Mills Big G cereals have long been a leader in delivering good nutrition,” said Ricardo Fernandez, president of US Morning Foods, the breakfast division of General Mills. “We were proud to be the first major company to make whole grain the first ingredient in our Big G cereals recipes nearly 20 years ago, a commitment that stands to this day. And with the newly increased vitamin D fortification of these cereals, we’re proud to remind parents of the goodness they grew up on with Big G and how we continue to deliver nutritious options for their families today.”

The vitamin D fortification follows the Food and Drug Administration’s approval earlier this year to increase the amount of vitamin D added in ready-to-eat cereals. According to data from the National Health and Nutrition Examination Survey (NHANES) cited by General Mills, 96% of Americans aged two and older under-consume the daily recommended amount of vitamin D.