|A deficiency in ____ (retinol) can cause night blindness.
|Deficiencies in calcium (Ca) and vitamin D can cause ____.
|Calcium (Ca) absorption is increased by ____.
|A deficiency in iron (Fe) can cause ____.
|Oranges, green peppers, and kiwi are good sources of ____.
|A deficiency in vitamin C (ascorbic acid) can cause ____.
|Thiamine, riboflavin, and niacin are examples of ____.
|The synthesis of blood coagulation proteins requires ____.