Clearly, vitamin K needs a new agent. It simply doesn't garner the attention of those media-absorbing nutrients, vitamins C, D and E. Today, we help rectify that by devoting our quiz to all things K.
1. From which German word does the "K" in "vitamin K" come?
2. In addition to promoting blood clotting, vitamin K (according to recent studies) helps protect against what condition in older men?
3. Which leafy-green vegetable has the highest amount of vitamin K?
c) Collard greens
4. Which specific population group is particularly susceptible to vitamin K deficiency?
a) Octogenarians in cold-weather climates
b) Bodybuilders who use human growth hormone
c) Newborns who are breastfed
5. Adequate intake of vitamin K for adult males is 120 micrograms per day (90 for adult females). How many raw carrots would you have to eat to reach that level?
ANSWERS: 1: b (German for "coagulation"); 2: a (reduces the risk of insulin resistance); 3: b (1 cup, 1,062 micrograms); 4: c (human milk is relatively low in vitamin K compared with formula); 5: c
Sources: www.nal.usda.gov; lpi.oregonstate.edu; tuftshealthletter.com