营养成分主要信息 | |||
营养素名称: | Vitamin K (phylloquinone) | ||
营养素类别: | Vitamins and Other Components | ||
计量单位: | µg | ||
概要: | It is important for blood coagulation and bone metabolism. | ||
营养素功效: |
Vitamin K functions as a coenzyme for biological reactions involved in: • Blood coagulation (blood clotting). Vitamin K activates several proteins which are involved in the blood clotting. • Bone osteocalcin metabolism and health. Vitamin K helps osteocalcin binding to minerals that increases bone density. • Positively affect calcium homeostasis and may work synergistically with vitamin D. Vitamin K also converts certain residues in proteins into biologically active forms, such as osteocalcin (found in bone) and matrix Gla protein (originally found in bone, later on also found in vascular smooth muscle and cartilage). So Vitamin K may play roles in the prevention of some chronic diseases, such as osteopenia and osteoporosis. Also some research suggests that Vitamin K may reduce the risk of some heart diseases. However, more research is needed. Phylloquinone (vitamin K1): it is the plant form of vitamin K, it is the major dietary form of Vitamin K. Menaquinone (vitamin K2): it is produced by bacteria in the gastrointestinal tract (GI tract) in our bodies, and also exists in various animal-based and fermented foods. Menadione (vitamin K3): is a synthetic or artificially produced form of vitamin K. Usually it is used in the animal feed as a supplement. Vitamin K1 and K2 are fat-soluble. However they are rapidly metabolized and excreted, body stores relatively low amount of vitamin K in blood and tissue compare to other fat-soluble vitamins. The synthetic Vitamin K3 is water-soluble. |
Vitamin K Rich Foods
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富含营养素食物示例: Vitamin K (phylloquinone) |
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食物描述 | 营养含量1 | 每日需量%2 | |
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Chard, swiss, raw
类别: Vegetables and Vegetable Products
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830 µg | 691.67% |
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Mustard greens, cooked, boiled, drained, without salt
类别: Vegetables and Vegetable Products
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592.7 µg | 493.92% |
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Spinach, cooked, boiled, drained, without salt
类别: Vegetables and Vegetable Products
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493.6 µg | 411.33% |
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Kale, cooked, boiled, drained, without salt
类别: Vegetables and Vegetable Products
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418.5 µg | 348.75% |
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Turnip greens, cooked, boiled, drained, with salt
类别: Vegetables and Vegetable Products
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367.6 µg | 306.33% |
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Chives, raw
类别: Vegetables and Vegetable Products
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212.7 µg | 177.25% |
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Broccoli, cooked, boiled, drained, without salt
类别: Vegetables and Vegetable Products
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141.1 µg | 117.58% |
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Oil, soybean, salad or cooking
类别: Fats and Oils
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183.9 µg | 153.25% |
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Kiwifruit, green, raw
类别: Fruits and Fruit Juices
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40.3 µg | 33.58% |
更多营养素信息 | |
概要 | It is important for blood coagulation and bone metabolism. |
缺乏营养对健康的影响 |
In general, clinically significant vitamin K deficiency is extremely rare. Only limited individuals with various lipid malabsorption syndromes (such as bile production fails) or treated with drugs which interfere with vitamin K synthesis and action (such as some antibiotics) may have vitamin K deficiency. If vitamin K deficiency occurs, the blood clotting time will take longer and non-stop bleeding could be fatal. Vitamin K deficiency may also reduce bone strength and increase the risk of getting osteoporosis. |
超过上限对健康的影响 | No adverse effects have been reported with high intakes of vitamin K (both phylloquinone and menaquinone forms) from food or supplements. Therefore, data were insufficient to set a Upper Limit for vitamin K. |
参考资料 |
Learn more at: • The National Academies of Science, Engineering, Medicine publication: Dietary Reference Intakes • NIH (National Institutes of Health) article: Vitamin K • NIH (National Institutes of Health) paper: PubChem: Vitamin K • Examine.com article: Vitamin K Supplement |
日需量年龄组 | 每日需量建议 | |
幼儿1至3岁: | 30 µg | |
儿童4至8岁: | 55 µg | |
男性9至13岁: | 60 µg | |
男性14至18岁: | 75 µg | |
男性19至30岁: | 120 µg | |
男性31至50岁: | 120 µg | |
男性51至70岁: | 120 µg | |
男性71岁或以上: | 120 µg | |
女性9至13岁: | 60 µg | |
女性14至18岁: | 75 µg | |
女性19至30岁: | 90 µg | |
女性31至50岁: | 90 µg | |
女性51至70岁: | 90 µg | |
女性71岁或以上: | 90 µg | |
女性孕妇(18岁以上): | 90 µg | |
女性哺乳期(18岁以上): | 90 µg | |
FDA(基于2000卡路里的日常饮食): | 120 µg |
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营养成分参考摄入量数据和营养成分知识来自于美国国立医学研究院2006年。膳食参考摄入量:营养需求基本指南。华盛顿特区:国家科学院出版社。National Academies' Institute of Medicine 2006. Dietary Reference Intakes: The Essential Guide to Nutrient Requirements. Washington, DC: The National Academies Press. https://doi.org/10.17226/11537 |
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营养成分知识基于美国食品和药物管理局(USFDA)营养教育资源文章。 https://www.accessdata.fda.gov/scripts/interactivenutritionfactslabel/ |
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营养成分知识基于美国国立卫生研究院的膳食补充剂情况说明书(Dietary Supplement Fact Sheets)。 https://ods.od.nih.gov/factsheets/list-all |
免责声明 | 此处提供的营养信息不应取代医疗建议。我们鼓励您与您的医疗保健提供者(例如您的医生)讨论对您的整体健康最有利的饮食需求。我们还建议您阅读本页提及的,但不限于,组织机构或专业参考文选或文章。此页面中的任何提及和参考链接并不代表我们对其服务和建议的代言(endorsement)。 |