Not all types of seaweed contain Vitamin K. Check this table I made...
Seaweed
Vit K
Giant kelp macrocystis integrefolia
No
Kombu L. saccharina
Yes
Wakame Undaria pinnatifida
Yes
Arame Eisenia arborea
No
Hijiki Sargassum fusiforme
No
Sea Palm Postelsia palmaeformis
No
Bladderwrack Fucus vesiculosus
Yes
Irish moss Chrondus crispus
No
Dulse Palmaria palmate
No
Nori Porphyra tenera
Yes
Sea lettuce Ulva lactuca
No
Source: Seaweed - Nature's Secret to balancing Your metabolism, Fighting Disease, and Revitalizing Body & Soul by Valerie Gennari Cooksley, RN
Sep 28, 2010
Vitamin K in nori seaweed by: Anonymous
I know that nori seaweed contains vitamin K but how much? I take Coumadin. My doctor has instructed me that I can consume some vitamin K each day, but I must limit my intake. I'm dying for some sushi. Help!
Jan 08, 2011
Any information on mcg of Vitamin K in above list? by: Anonymous
Some sources say that nori, although it has vitamin K has a very small amount (8 mcg for a sheet). Kombu for a 1 inch piece negligable, a cup of wakame around 5 mcg, laver, 4 mcg for a cup. Then other sources say seaweed is an excellent source of vitamin K, alluding to even as much as Kale. I had to obtain info from various sources, most of which are conflicting. So, I'm confused! Is there any table with the mcg of each type of seaweed? As a side note, when taking coumadin/warfarin - you can have vitamin K foods, the key is keeping the amount consistent day-to-day.
