Vitamin D Synthesis and Sources Quiz

Vitamin D is not strictly a vitamin since it can be synthesized in the ______

Animal Sources of vitamin D3 include liver, egg yolk, saltwater fish, and vitamin D–fortified ______

Plant Sources include vitamin D2 in ______

7-Dehydrocholesterol, an intermediate in cholesterol synthesis, is converted to cholecalciferol in the dermis and epidermis of humans exposed to ______

Vitamins D2 and D3 are not biologically active but are converted in vivo to the active form of the D vitamin: 1,25-Dihydroxycholecalciferol (calcitriol) by two sequential ______ reactions

There is growing evidence that higher vitamin D status is protective against various ______, including prostate and colorectal cancer

Deficiency of vitamin D produces ______ in children and osteomalacia in adults

Rickets is characterized by the formation of soft and pliable bones due to poor mineralization and ______ deficiency

Osteomalacia is characterized by the ______ of previously formed bones

Rachitic children are usually anemic or prone to ______