Vitamin A is stored in the body as…
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During the visual cycle, light converts 11-cis retinal into…
During the visual cycle, light converts 11-cis retinal into what form of vitamin A?
Conjunctival impression cytology is a histological method of…
Conjunctival impression cytology is a histological method of assessment of the nutritional status of what vitamin?
Vitamin A deficiency can be caused by a zinc deficiency.
Vitamin A deficiency can be caused by a zinc deficiency.
A protein secreted by the stomach that binds to vitamin B12…
A protein secreted by the stomach that binds to vitamin B12 once the vitamin is in the small intestine.
Vitamin D and what hormone act during low levels of blood ca…
Vitamin D and what hormone act during low levels of blood calcium to promote the resorption of calcium from bone to blood?
What vitamin is necessary to convert cholesterol into bile a…
What vitamin is necessary to convert cholesterol into bile acids?
The RDA is increased for folate when a woman becomes pregnan…
The RDA is increased for folate when a woman becomes pregnant.
Most of the known carotenoids can be converted into retinol.
Most of the known carotenoids can be converted into retinol.
The appearance of a rachitic rosary is symptomatic of a defi…
The appearance of a rachitic rosary is symptomatic of a deficiency of what vitamin?