Josh, I'll have to check out the book! Jody, just link back to your site. Hopefully you have analytics set up for your website, which it make it easier for you to track how many people clicked on that link from Facebook--helping you understand how important your Facebook business page is for your company.
The average (or more correctly the arithmetic mean) amount of vitamin k contained in 100g of grapefruit juice, based on the list below of 6 different items under the general description of grapefruit juice, is 0.02 ug of vitamin k.
Grapefruit is a rich source of potassium and calcium. The National Nutrient Database reports that half of a grapefruit contains 20 mg of calcium and 231 mg of potassium. It also contains smaller amounts of iron, magnesium, phosphorus and fluoride.