Vitamin K - forms, functions, deficiency, RDA 

0:19 Introduction 4:22 Principle role of Vitamin K 9:10 Vitamin K cycle 11:40 Required for Activation of Osteocalcin 12:38 RDA 13:05 Sources 13:44 Deficiency 16:31 Toxicity

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This is the first video I have found with clear concise information on Vitamin K. Thank you so much!!

Explanation is good, Vitamin K deficiency causes Hemorrhagic disease of the Newborn ,not Haemolytic disease. Both are different diseases. Vitamin K deficiency bleeding is Haemorrhagic not Haemolytic, 👍

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Very well explained esp the cycle of vitamin k and functions , also how can vitamin k itself being helping in coagulation act in activation of anti-coagulants activation ?

Thank u soo much sir this is the first video that gives me alot of concept about vit k

Thanks for your valuable information and also very good explains regarding vitamin k,

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Plants use K1 for photosynthesis, which is why it always comes with the green parts. It's not at all clear if the body can use K1 without stripping off the side chain and converting to K2. This goes though K3 in the process (which has no side chain). A lot of K3 is poisonous which is why it is not used in vitamin pills. K1 is used by medicine because it's cheap to make. The body makes K2 from K1 by stripping off the side chain and putting on another, and the K2 produced always has 4 isoprenes (MK-4). It's done in blood vessel walls, not always bacteria. K2 Mk4 definitely can be used to make gla proteins and clotting and osteocalcin and matrix protein. It's not clear if k1 is a provitamin for K2 or can be used without conversion. In any case you don't need K1. Bacteria in natto and in the small and large bowel can make at K2 which is MK-4 up to MK-9. MK-7 from natto is often sold. It dissolves in fat and lasts a long time. These vitamin Ks are used by bacteria for the own anaerobic metabolism. I suspect that like K1 they are provitamins and also converted to MK-4 before your body can use it them. All these steps require removal of side chain and sticking on a proper geronyl-geronyl group (4 isoprenes) to get K2 MK4.

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The name Vitamin K from koagulation doesnt stem from german, it stems from the danish word: Koagulering / koagulation. The man who identified vitamin K was the danish chemist Henrik Dam, in 1929.

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Sir the RDA value of vitamin k in Vasudevan is 50-100mg/day

Thanks very informative best wishes from Canada

You explained just like drinking water from a glass. Great sir.

great explanation great respect and love from ETHIOPIA

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v informative sir . thnks alot

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Sir in satyanaryan it is given that all the three vitamins are napthoquinone derivatives but isoprenoid side chain is present in only K1 and K2 . K3 is also napthoquinone derivative??

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Very well explained! 👏🏻 Easy to Grasp💯

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Thank you, for the information 😊

Why it leads to hemolytic anemia in newborn, as it does not involved in heme synthesis or RBCs synthesis.

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Sir please explain the importance of vit k cycle🙏

Very nice explanation sir .... Awesome

Your lecture is very nice sir. But please improve your video quality and sound quality. Thank you so much.

Sir please make a video on Prostagladins and inflammation Thanks sir

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I’m suffering with biochemistry ( names, structures , compounds) what should I do , my study is for the dental school not need to be a professor but I need to understand and relay the concepts !!!!

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Sir what is a caidrine? means k3? already used in agriculture. please sir answer. 🙏

Sooper class

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Thanks Dr

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Sir are you from Maharashtra??

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❤️

Nice explanation. Dr sab, try to use duster

Sir manadione not used in newborn ...

Thanks sir

Does anyone know is vit k synthetic aka not real and not safe for babies ? I just want to confirm

Is synthetic vit k phytonadione good? I want take megafood vit d k1 k2 supplement but k1 comes as phytonadione

tq sir

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Tq sir

What is Prothombin time??

Nice sir

K2 = the 'secret' vitamin.

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I think its hemorraghic disease of newborn...

Now date 1/July/2023 views are 184k but likes 4.3k how people can be bad for their teachers.

Sir plz enumerate Vitamins containing Sulphur?

10q

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Thank you sir

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Thank you sir