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Uploaded by Howcast on Apr 15, 2010
A person needs 200 to 600 IUs‚ International Units‚ of Vitamin D each day. You may need to supplement your diet to meet the recommended levels.
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i take 2000 ius because im deficient.
rctriplefresh5 1 year ago
STFU
alek100 1 year ago
MORE FOOD VIDEOS! OMG I'm so hungry!!!
asdfgoogle 1 year ago
@U3bElive lame
michiel1551 1 year ago
1st !
U3bElive 1 year ago
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i take 2000 ius because im deficient.
rctriplefresh5 1 year ago
STFU
alek100 1 year ago
MORE FOOD VIDEOS! OMG I'm so hungry!!!
asdfgoogle 1 year ago
@U3bElive lame
michiel1551 1 year ago
1st !
U3bElive 1 year ago