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Questions and Answers
Where is phylloquinone found?
Where is phylloquinone found?
- Fruits and grains
- Leafy greens and plant oils (correct)
- Animal products
- Processed foods
What causes rickets in children?
What causes rickets in children?
- Vitamin K deficiency
- Vitamin C deficiency
- Vitamin D deficiency (correct)
- Excessive vitamin intake
Which vitamin is best stored in the liver?
Which vitamin is best stored in the liver?
- Vitamin A
- Vitamin K (correct)
- Vitamin C
- Vitamin D
What is the role of Matrix Gla Protein?
What is the role of Matrix Gla Protein?
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What is the primary source of menaquinone?
What is the primary source of menaquinone?
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What are the two types of vitamin K and where are they found?
What are the two types of vitamin K and where are they found?
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What are the health implications of hypercalcemia?
What are the health implications of hypercalcemia?
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What are the key functions of Osteocalcin and Matrix Gla Protein?
What are the key functions of Osteocalcin and Matrix Gla Protein?
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What are the common health issues associated with vitamin D deficiency?
What are the common health issues associated with vitamin D deficiency?
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Why do babies receive vitamin K shots?
Why do babies receive vitamin K shots?
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Study Notes
Vitamin K Storage and Absorption
- Vitamin K is best stored in the liver
- Vitamin K is best absorbed with fat
Types of Vitamin K
- There are two types of vitamin K: phylloquinone and menaquinone
- Phylloquinone is found in leafy greens, plant oils, and veggies
- Menaquinone is found in animal products and a large amount is found in the commensal bacteria of the gut
Vitamin D Deficiency Disorders
- Rickets: a disorder that occurs in children, characterized by bowed legs, caused by vitamin D deficiency
- Hypercalcemia: a condition of high calcium in the blood, causing kidney stones and tissue calcification
- Osteomalacia: a condition of softening of bones in adults, caused by vitamin D deficiency, which increases osteoporosis
Vitamin K Dependent Molecules
- Matrix Gla Protein: regulates calcium deposition on the matrix
- Osteocalcin: helps in the development of hydroxyapatite and regulates bone development
Additional Key Facts
- Vitamin K is important for blood clotting
- Babies are given vitamin K shots because their gut is initially sterile
- The three key nutrients for bone health are: Calcium, Vitamin K, and Vitamin D
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