Vitamin K1, known as phylloquinone, is the dietary form found in various foods and supplements. K1 rich foods are green leafy vegetables such as spinach, chard, and broccoli, certain fruits such as avocados and kiwis, as well as various vegetable oils, most noteably soybean oil. The dietary reference intake (DRI) for vitamin K1 varies depending on age and gender. Adult males need 120 micrograms/day, while adult females need 90 micrograms/day. Vitamin K2, known as menaquinone, is a normal flora of the large intestine and deficiencies are rare. K2 can also be found in meat, eggs, and dairy products. The synthetic forms of Vitamin K (3-5) are found within pet foods and used for the inhibition of fungal growths. Allergic reactions may occur from supplementation, however toxicity is rare and there is currently no set tolerable upper intake level (UL).
Kathrine do you think you eat sufficient vitamin K in your diet or are there foods you would consider eating now that you know more about it?
ReplyDeleteI do feel I get sufficient vit k in my diet. I eat a lot of spinach, broccoli, avocado, and sprouts regularly which all hold high levels of vit K. I found it interesting that MyDiet Analysis did not have a vit K category, at least that I could see. I tried measuring my daily amounts, but they weren't shown for vit K.
ReplyDeleteThere are a few nutrients that the diet analysis programs don't analyze for including vitamin K, iodine, manganese, etc. Most likely its because there has not been enough research on food sources to make it worthwhile to include. In other words, there would be a lot of holes in the analysis.
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