The study by Swedish researchers used sequential assessment of serum vitamin D to determine if sustained hypovitaminosis D in elderly women leads to increased 10 - year fracture incidence. (sciencedaily.com)
Hypovitaminosis A in cats may exhaust vitamin A reserves of the kidneys and liver; affect reproduction to cause stillbirths, congenital anomalies (hydrocephaly, blindness, hairlessness, deafness, ataxia, cerebellar dysplasia, intestinal hernia), and resorption of fetuses; and cause the same changes in epithelial cells noted in other animals. (merckvetmanual.com)
Hypovitaminosis C or «scurvy» — Vitamin C is essential for building and repairing collagen. (supremepetfoods.com)