According to them, eating approximately a serving of leafy green vegetables may help slow the decline of cognitive abilities in older age, perhaps because of the protective effects chemical substances like lutein, folate, beta-carotene and phylloquinone
that vegetables have on the brain.
(K1), found in plants, provides most of the vitamin K in our diets.
Atherosclerosis has published a long-term study that explored the relationship between intake of phylloquinone
and menaquinones (vitamins K1 and K2, respectively) and risk of peripheral arterial disease (PAD).
8220;Changes in parameters of bone metabolism in postmenopausal women following a 12-month intervention period using dairy products enriched with calcium, vitamin D, and phylloquinone
(vitamin K(1)) or menaquinone-7 (vitamin K (2)): the Postmenopausal Health Study II” Calcif Tissue Int 90:251-62 (2012).
and menaquinones intakes and risk of type 2 diabetes.
Vitamin K distribution in rat tissues: dietary phylloquinone
is a source of tissue menaquinone-4.
Key nutrients measured were ascorbic acid (vitamin C), tocopherols (vitamin E), phylloquinone
(vitamin K), and beta-carotene (a vitamin A precursor), plus other related carotenoids in the cotyledons.
is rich in vitamins like Cyanocobalamin (B12), Pyridoxine (B6), Riboflavin (B2), Thiamin (B1), Tocopherol (E) and Phylloquinone
or phytonadione (K) (BRANGER et al.
Vermeer, "Determination of Phylloquinone
and Menaquinones in Food: Effect of Food Matrix on Circulating Vitamin K Concentrations," Haemostasis 30, 298-307 (2000).
There are two main forms of vitamin K: vitamin Kl, or phylloquinone
, which is found in leafy green vegetables and accounts for about 90% of the vitamin K in a typical Western diet; and vitamin K2, or menaquinones, which can be synthesized in the digestive tract by microflora.
Neogi and her associates defined vitamin K deficiency as a plasma level of phylloquinone
less than 0.
Vitamin K exists in two natural forms: vitamin K1, or phylloquinone
, found largely in green leafy vegetables, as well as some vegetable oils, such as canola and soybean oils; and vitamin K2, or menaquinone, for which meat and cheese are the primary dietary sources.