Tea and coffee brews are not dietary sources of vitamin K-1 (phylloquinone).
Booth
S L
SL
School of Nutrition and a Scientist I, Tufts University, Boston, Mass 02111.
Madabushi
H T
HT
Davidson
K W
KW
Sadowski
J A
JA
D002851:Chromatography, High Pressure Liquid; D003069:Coffee / Q000737:chemistry*; D006801:Humans; D013662:Tea / Q000737:chemistry*; D010837:Vitamin K 1 / Q000032:analysis*
D003069:Coffee; D013662:Tea; D010837:Vitamin K 1