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Sources, Functions, and Effects of Vitamins
Dietary sources include milk, cheese, liver, meat, eggs, and enriched cereal products. (See also Overview of Vitamins.)
results from inadequate intake of the following:
Fortified cereals
Milk
Other animal products
is most commonly caused by the following:
Chronic diarrhea
Liver disorders
Long-term use of barbiturates
Chronic alcohol use disorder
Candida albicans, causing grayish white lesions (perlèche). The tongue may appear magenta.
Seborrheic dermatitis develops, usually affecting the nasolabial folds, ears, eyelids, and scrotum or labia majora. These areas become red, scaly, and greasy.
Rarely, neovascularization and keratitis of the cornea occur, causing lacrimation and photophobia.
Therapeutic trial
Key Points
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