Name: 9.4 ビタミン：ビタミンK (9.4 Vitamins: Vitamin K)
Uploaded: 2021-01-14T05:45:48.000Z
Duration: 7 min 57 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

WE'LL BE COVERING VITAMIN K. WHAT I'D FIRST LIKE TO DO IS

INTRODUCE VITAMIN K AS ACTUALLY TWO SEPARATE VITAMINS.

IN FACT, EVEN WHEN I WAS IN SCHOOL WE ONLY LEARNED ABOUT

A GENERAL VITAMIN K, NOT VITAMIN K1 AND K2.

SO IT HELPS CLOT THE BLOOD OR IT HELPS IN THE FORMATION

OF PROTEINS THAT ARE INVOLVED IN BLOOD-CLOTTING.

VITAMIN K2 IS INVOLVED IN THE SYNTHESIS OF BONE PROTEINS,

THAT PROTEINS THAT ARE INVOLVED IN BONE FORMATION,

NOW, WITH THE K1 THE VITAMIN K THAT IS INVOLVED

IN THE SYNTHESIS OF BLOOD-CLOTTING PROTEINS,

THIS IS CALLED PHYLOQUINONE AND THAT'S THE NAME.

AND YOU CAN THINK OF IT AS P AS IN PLANT,

THIS IS MORE OF THE PLANT FORM OF VITAMIN K,

WHERE THE MENAQUINONE, DOWN HERE YOU CAN SEE THIS,

THIS IS THE ANIMAL FORM OF VITAMIN K AND THAT'S K2.

NOW, VITAMIN K2 IS ACTUALLY MADE IN THE INTESTINES

WHAT YOU'LL FIND IN YOUR BOOK IS YOU'RE NOT GOING TO

SEE THE BOTH VITAMIN K1 AND K2 MENTIONED.

AND YOU'RE ALSO GOING TO SEE THAT VITAMIN K IS

PRODUCED IN THE INTESTINES, AND THEREFORE WE DON'T NEED ANY.

INTESTINES BUT THIS IS NOT WELL-ABSORBED.

WE APPARENTLY DON'T DO IT EFFICIENTLY ENOUGH

SO WE DO NEED FOOD SOURCES OF VITAMIN K2.

THE BODY HAS A VERY GOOD ABILITY TO RECYCLE IT OR

TO REUSE THIS TYPE OF VITAMIN K. AND IF YOU THINK ABOUT IT,

IF THERE AREN'T A LOT OF PEOPLE AROUND YOU WHO ARE,

YOU KNOW, FALLING DEAD OF UNCONTROLLABLE BLEEDING.

AND THEN, ALSO VITAMIN K, AND I'LL TALK ABOUT THIS NEXT,

K1 TENDS TO BE MORE IN COMMON FOOD SOURCE AND

MOST PEOPLE ARE GETTING ENOUGH OF VITAMIN K1.

IF THERE'S A DEFICIENCY THEN FRACTURES CAN DEVELOP.

WE THINK OF OSTEOPOROSIS, BUT ALSO HEART DISEASE.

YOU WOULDN'T THINK OF IT BECAUSE I JUST SAID

THAT IT WAS INVOLVED IN FORMING BONE PROTEINS.

BUT I'M GOING TO TALK ABOUT WHAT I MEAN BY THIS NEXT.

AND THIS IS AN ANALOGY THAT, IT'S ACTUALLY NOT MY ANALOGY.

I DIDN'T COME UP WITH THIS BUT I READ THIS ANALOGY.

AND I THINK IT'S A GREAT ONE TO USE BECAUSE

VITAMIN K2 AND VITAMIN D ACTUALLY WORK TOGETHER.

THE ROLE OF VITAMIN D, IT HAS MANY ROLES.

BUT THE MAIN ONE IS TO CONTROL HOW MUCH CALCIUM IS ABSORBED.

WE'LL LET MORE CALCIUM INTO THE BLOODSTREAM.

REMEMBER WHEN I TALKED ABOUT IF THERE'S TWO MUCH VITAMIN

D YOU WOULD GET SOFT TISSUE CALCIUM DEPOSIT,

AND THAT THEY COULD END UP IN THE ARTERIES.

AND THAT'S WHAT HAPPENS IS IF THERE IS NO

K2 THEN CALCIUM DOES NOT KNOW WHERE TO GO.

AN INTERSECTION WHERE THE POWER IS OUT AND

AND YOU MIGHT END UP TAKING THE WRONG TURN.

OR YOU MIGHT END UP, SAY, IN A TRAFFIC JAM.

WELL, THAT'S WHAT CAN HAPPEN WITH CALCIUM.

IF VITAMIN K2 IS THERE THE BONE PROTEINS,

ACTUALLY HELP DIRECT CALCIUM TO THE RIGHT PLACE.

BUT YOU MIGHT END UP WITH OSTEOPOROSIS AND HEART

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9.4 ビタミン：ビタミンK (9.4 Vitamins: Vitamin K)

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