Foods high in vitamin a and k
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Foods High in Vitamin A and K
Vitamin K in Meat, Dairy, and Fast Foods
Meat, Dairy, and Eggs
Meat, dairy, and eggs are common components of the U.S. diet and contain various forms of vitamin K, including phylloquinone, dihydrophylloquinone, and menaquinone-4 (MK-4). Although no single food item in these categories is a rich source of any one form of vitamin K, their frequent consumption can significantly contribute to overall vitamin K intake. The presence of MK-4 in these foods is particularly noteworthy due to its unique physiological functions.
Fast Foods and Snack Foods
Fast foods and snack foods also contribute to vitamin K intake, primarily in the form of phylloquinone (K1) and dihydrophylloquinone (dK). Key fast foods such as chicken products, hamburgers, burritos, and nachos, as well as snack foods like crackers and potato chips, have varying levels of K1 and dK. The K1 content in these foods ranges from 0.4 to 24.3 mg/100 g, while dK content ranges from non-detectable to 102 mg/100 g. Despite the variability, frequent and large consumption of these foods can make them significant contributors to vitamin K intake in the U.S. diet.
Conclusion
In summary, while no single meat, dairy, egg, fast food, or snack food item is a rich source of vitamin K, their frequent consumption can collectively contribute to significant vitamin K intake. This is particularly important for maintaining adequate vitamin K levels, given the unique physiological roles of different forms of the vitamin.
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