vitamin D

noun

any of the several fat-soluble, antirachitic vitamins D 1 , D 2 , D 3 , occurring in milk and fish-liver oils, especially cod and halibut, or obtained by irradiating provitamin D with ultraviolet light, essential for the formation of normal bones and teeth.

vitamin D

any of the fat-soluble vitamins, including calciferol and cholecalciferol, occurring in fish-liver oils (esp cod-liver oil), milk, butter, and eggs: used in the treatment of rickets and osteomalacia

vitamin D

Any of a group of fat-soluble sterols necessary for normal bone growth, especially vitamin D 2 ( ergocalciferol ) and vitamin D 3 ( cholecalciferol ). Vitamin D is found in milk, fish, and eggs and can be produced in the skin on exposure to sunlight. A deficiency of vitamin D in the diet causes rickets in children.

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First recorded in 1920–25

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Examples have not been reviewed.

Some UV radiation is crucial for our wellbeing, enabling our skin to produce essential vitamin D, but too much can be dangerous.

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He probably just needed some downtime, decompressing, healthy juices and vitamin D to get him back on track.

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I’d want her to take vitamin D supplements and collagen as a routine.

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Nutritionally, mushrooms are great sources of fiber and vitamin D and wild forage mushrooms reportedly have more added benefits.

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However, the evidence around vitamin D is hotly debated rather than being a firm no.

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