Comments on: 7 Vitamin K2 Health Benefits + Foods & Deficiency Risks

By: Debbie

Debbie — Fri, 06 Dec 2019 20:38:41 +0000

Hi, I take Cartia (tiny asprin pills) – one pill a day. Will this be a problem if I start taking K2 supplementation?

By: Diane Martinson

Diane Martinson — Wed, 07 Nov 2018 19:38:40 +0000

Joe, do you take Mk 4 or 7? I know their doses differ, 7 in milligrams and 4 in micrograms, how much do you take? Have you ever had any side effects, I’ve had insomnia and a lot of people say they also have had that problem with K 2.

By: Kelly

Kelly — Wed, 10 Oct 2018 03:50:44 +0000

In reply to Will Schlinsog. Emu oil is higher than all of them.

By: donnagail

donnagail — Sun, 30 Sep 2018 19:35:51 +0000

I’m using extra aged dutch gouda for my k2 mk4…i eat an ounce a day…should i eat it all at once or spread throughout the day so it will be in my bloodstream over time? I don’t have a gallbladder so i’m not sure bile will be present exactly when i eat it…should i take a bile acid supplement together with my gouda? is an ounce too much? I also chose gouda to try to reach my calcium needs as a postmenopausal woman, for CLA, and for some animal-sourced Vit A. Is this a good plan? I have clogged arteries and I’m also using raw cacao powder and serrapeptase to try to help unclog them.

By: Wal

Wal — Sun, 26 Aug 2018 10:23:53 +0000

Any thoughts on how K2 would effect ADHD would love any kind of feedback on it

By: ROB

ROB — Tue, 05 Jun 2018 01:02:57 +0000

Be careful with MK7. I find it builds up in the system and once it gets to a certain level I experience severe anxiety. This is not a problem with MK4. If you react this way only take MK7 every third or fourth day.

By: Jennifer Cowan

Jennifer Cowan — Thu, 10 May 2018 08:36:26 +0000

what the heck are MK4 and MK7? Were we talking about K2? I am confused. I am wondering if I even need K2. I am 57 and working. Father has had a 5-way heart bypass and corroded op. Brother had a stroke recently 53yr and one corroded is 100% blocked the other about 80%blocked, too risky to operate. my other brother and sister have very high cholesterol. mine is 6.1

By: ruth kogon

ruth kogon — Mon, 27 Nov 2017 05:50:22 +0000

it is surprising that the article says that there is no known toxicity with taking K2 . I and many otheres have quite a severe skin reaction.
I would like to keep taking K2 for its benefits but how can i avoind the skin reaction?

By: John hayword

John hayword — Tue, 19 Sep 2017 20:07:48 +0000

Vitamin k2 also boost testosterone by bypassing the HTPA loop. It boost testosterone through “osteocalcin” which activates the G proteins in the testis. The leydig cells in testis through the activation of the G protein GRPC6a cause the leydig cells to release testosterone. This is actually one of the only ways to activate testosterone without the HTPA axis. I use Vitamin K2 as a bonus with my weightlifting stack and the results are great.

By: NehaShah

NehaShah — Sat, 02 Sep 2017 09:10:28 +0000

Great article! I have just recently learned about k2 and have been curious about it. K2 seems to be a bit of a mystery to a lot of people. From my knowledge base, K2 can still affect coagulation to some extent even though k1 and k2 are very different. However, K2 can also aid in preventing artery calcification from Warfarin (the main anti-clotting med). I would advise people to speak to their doctor regarding the use of K2 if they are prescribed anti-coagulants…it may be totally safe and I believe it is beneficial but these anti-coagulants are extremely sensitive and I would make sure its safe.

By: Phil Alcoceli

Phil Alcoceli — Sun, 02 Jul 2017 18:07:06 +0000

The best source of MK4 I’ve found is from Relentless Improvement. I have received many of the benefits listed here. It’s truly a “sleeper” supplement! (not very impressive on the outside but excellent inside)

By: Jeff

Jeff — Tue, 06 Jun 2017 05:19:18 +0000

I’m 79 years old and have two cardiac stents to keep my heart working. I take one baby aspirin each day as a blood thinner. I have spinach salads three or four times a week. How dangerous is it for me to take Vitamin K-2? Should I avoid it?

By: Nattha Wannissorn

Nattha Wannissorn — Fri, 17 Feb 2017 16:30:54 +0000

In reply to Samantha. Competes for absorption and also when it changes gene expression, but it works together inside the cells. These things often come together in foods anyway so make sure you have enough of each.

By: Samantha

Samantha — Fri, 17 Feb 2017 16:08:08 +0000

I’m a little confused regarding the vitamin A.. It states that it competes with vitamin K and vitamin D in one section and then in another section it says it works synergistically with vitamin K and vitamin D. So, do I take my vitamin A along with my vitamin K2 and vitamin D?

By: Will Schlinsog

Will Schlinsog — Fri, 09 Dec 2016 02:56:23 +0000

Have you heard that there is a naturally occurring Vitamin K2 MK4 source which is higher than goose liver and way better than natto.
Walkabout Health Products CFO Dr. Will Schlinsog

By: Joseph M. Cohen

Joseph M. Cohen — Thu, 20 Oct 2016 02:21:31 +0000

In reply to CM. See CSM post

By: CM

CM — Wed, 12 Oct 2016 17:13:36 +0000

I have been taking Cholestyramine. So K2 is absorbed by it? I wonder what else that CSM is absorbing? Hmmmmm. Any other stuff I should know about?

By: Joseph M. Cohen

Joseph M. Cohen — Tue, 30 Aug 2016 20:16:57 +0000

In reply to Alan. Anything is possible, but that's unlikely

By: Alan

Alan — Tue, 30 Aug 2016 02:35:10 +0000

Is it possible that vitamin K2 can cause insomnia by directing calcium from the brain to the bones?

By: Joseph M. Cohen

Joseph M. Cohen — Sun, 15 May 2016 02:01:50 +0000

In reply to Jake. Yes, I'm Ashkenazic, I should check...

By: zmkd

zmkd — Sat, 14 May 2016 23:09:43 +0000

I like that you prefer MK-4 over MK-7. I’ve never been convinced that MK-7 is preferable, even though the vast majority of health bloggers say it is. They say that MK-7 has a longer half-life in the blood… but what if that’s because the body is greedily using up the MK-4 first?

By: Jake

Jake — Sat, 14 May 2016 01:42:39 +0000

In reply to Joseph M. Cohen.

Considering you’re Jewish, you should check your genome if possible for any heterozygous Ashkenazi mutations.

I’m really curious if you have any.

By: Joseph M. Cohen

Joseph M. Cohen — Sat, 14 May 2016 00:47:03 +0000

Interesting!