vitamin D
nounDefinition of vitamin D
: any or all of several fat-soluble vitamins chemically related to steroids, essential for normal bone and tooth structure, and found especially in fish-liver oils, egg yolk, and milk or produced by activation (as by ultraviolet irradiation) of sterols: such as
Examples of vitamin D in a Sentence
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One is vitamin D, which is found in eggs, cheese, and ocean fish like salmon and tuna, per the U.S. National Library of Medicine. — Carolyn L. Todd, SELF, "Does It Make a Difference if You Get Your Protein from Plants or Animals?," 28 Aug. 2019 For vitamin D, go for fish, eggs and vitamin D. Similarly, exercise is key. — Ladan Nikravan Hayes, Cincinnati.com, "“Let’s Talk”: Can CBD oil provide menopause symptom relief?," 13 June 2019 Folic acid also reduced the risk of stroke, while taking calcium and vitamin D together made strokes more likely. — Arman Azad, CNN, "Supplements probably aren't helping your heart, research suggests," 8 July 2019 Research shows that a deficiency of vitamin D, which is common in adults, can significantly increase the risk of unhealthy sleep and sleep disorders. — Cynthia Sass, Mph, Health.com, "7 Healthy Late-Night Snacks," 3 July 2019 Those who are between 19-70 should get 600 IU of vitamin D daily, which people age 71 and over should get 800 IU. — Rebecca Maitland, Houston Chronicle, "Senior tip: Getting outdoors will provide vitamin D bonus," 21 June 2019 To overcome the winter sunlight shortfall, mutations in two of the 68 genes used to synthesize and process vitamin D make the process up to 20 times more efficient, researchers report today in Science. — Elizabeth Pennisi, Science | AAAS, "How reindeer evolved to survive freezing Arctic winters," 20 June 2019 Other research has questioned claims made by vitamin D, fish oil and omega-3 supplement makers about their ability to ward off chronic conditions like cancer, cardiovascular disease and cognitive decline. — Jamie Ducharme, Time, "These Dietary Supplements Were Linked to Serious Health Problems in Young People," 6 June 2019 Always wear sunscreen, and get your vitamin D from a supplement instead. — Kiera Carter, Marie Claire, "The Everything SPF Guide: What You Need to Know About Sunscreen," 27 May 2019These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vitamin D.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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