site map


Privacy policy About

Health blog:
January 2020

Is your child under toxic stress? Are you?

Kaylee Dixon - between (forced) surgery and cannabis oil

June 2010 - Dec 2013

Minimizing breast cancer risk

May 2010

Time to move beyond salt ?

Salt hypothesis vs. reality

Is sodium bad?

April 2010

Salt studies: the latest score

From Dahl to INTERSALT

Salt hypothesis' story

March 2010

Salt war

Do bone drugs work?

Diabetes vs. drugs, 3:0?

February 2010

The MMR vaccine war: Wakefield vs. ?

Wakefield proceedings: an exception?

Who's afraid of a littl' 1998 study?

January 2010

Antibiotic children

Physical activity benefits late-life health

Healthier life for New Year's resolution


December 2009

Autism epidemic worsening: CDC report

Rosuvastatin indication broadened

High-protein diet effects


November 2009

Folic acid cancer risk

Folic acid studies: message in a bottle?

Sweet, short life on a sugary diet


October 2009

Smoking health hazards: no dose-response

C. difficile warning

Asthma risk and waist size in women


September 2009

Antioxidants' melanoma risk: 4-fold or none?

Murky waters of vitamin D status

Is vitamin D deficiency hurting you?


August 2009

Pill-crushing children

New gut test for children and adults

Unhealthy habits - whistling past the graveyard?


July 2009

Asthma solution - between two opposites that don't attract

Light wave therapy - how does it actually work?

Hodgkin's lymphoma in children: better alternatives


June 2009

Hodgkin's, kids, and the abuse of power

Efficacy and safety of the conventional treatment for Hodgkin's:
behind the hype

Long-term mortality and morbidity after conventional treatments for pediatric Hodgkin's


May 2009

Late health effects of the toxicity of the conventional treatment for Hodgkin's

Daniel's true 5-year chances with the conventional treatment for Hodgkin's

Daniel Hauser Hodgkin's case: child protection or medical oppression?

April 2009

Protection from EMF: you're on your own

EMF pollution battle: same old...

EMF health threat and the politics of status quo

March 2009

Electromagnetic danger? No such thing, in our view...

EMF safety standards: are they safe?

Power-frequency field exposure

February 2009

Electricity and health

Electromagnetic spectrum: health connection

Is power pollution making you sick?

January 2009

Pneumococcal vaccine for adults useless?

DHA in brain development study - why not boys?

HRT shrinks brains


Bookmark and Share



Vitamin K and your health

Fairly neglected as an essential nutrient, vitamin K was for a while known mostly as a skin cream ingredient that was supposedly making tiny unsightly veins in the upper skin layer disappear. However, its body function is much more serious, and recent research suggest that there are still important thing to learn about this somewhat obscure nutrient.

Till recent, it was officially considered that food supply of vitamin K comfortably exceeds average human needs. Estimated average daily intake was 0.3mg-0.5mg, with the estimated adequate intake set at ~0.1mg. Current data suggests considerably lover average intake, roughly at the level of what is considered adequate.

Also, previous estimates of about half of the body's supply of vitamin K coming from friendly intestinal bacteria, now seems to be reduced to only a fraction of what is available from food sources. Most Americans have their vitamin K intake almost exclusively in the plant form of vitamin K (K1, or phylloquinone), and almost no bacteria-produced K2 (menaquinone).

Since those are only the estimates of averages, chances are that good portion of the population has sub-optimal intake of vitamin K. Possible deficiency symptoms are compromised blood clotting, bruising, osteoporosis, cardiovascular disease, calcification, delayed development in infants17, and others.

Toxicity from vitamin K overdose, or excessive intake occurs only with its synthetic form (K3), and includes liver impairment, hemolytic (red blood cell) anemia and brain damage in infants. Excessive doses of the natural form of vitamin K can cause jaundice in infants.

Vitamin K DRI (Dietary Reference Intakes, the most recent set of dietary recommendations set by the government) for an average healthy adult female is 0.09mg (90mcg) a day, and 0.12mg (120mcg) for a male.

Best natural vitamin K food sources are green leafy vegetables, followed by cheese, yogurt, fish liver oils, etc.