Biomedical Nutrition Limited

DUTCH RESEARCHERS ARE RECOMMENDING THAT PEOPLE SUPPLEMENT WITH VITAMIN K TO PROTECT AGAINST COVID-19 AFTER DISCOVERING A LINK BETWEEN DEFICIENCY AND THE WORST CORONAVIRUS OUTCOMES.

The researchers made the discovery after studying data on patients who were admitted to the Canisius Wilhelmina hospital in the Dutch city of Nijmegen.

They say that vitamin K could combat two dangerous feature of Covid-19 – blood clotting, and degradation of elastic fibres in the lungs. Vitamin K, ingested through food or in supplement form and absorbed in the gastrointestinal tract, is vital in the production of proteins that regulate clotting and can protect against lung disease.

The Dutch research, undertaken in partnership with the Cardiovascular Research Institute Maastricht, one of Europe’s largest heart and vascular research institutes, studied 134 patients hospitalised for Covid-19 between 12 March and 11 April, alongside a control group of 184 age-matched patients who did not have the disease.

The researchers now want to secure funding for a clinical trial in which very sick Covid-19 patients were randomised to receive either a placebo or a vitamin K supplement as sufficient dose to activate the protective protein.

Dr Rob Janssen, a scientist working on the project, said: “We are in a terrible, horrible situation in the world. We do have an intervention which does not have any side effects, even less than a placebo. There is one major exception: people on anti-clotting medication. It is completely safe in other people.  “My advice would be to take those vitamin K supplements. Even if it does not help against severe Covid-19, it is good for your blood vessels, bones and probably also for the lungs.” Source: Natural Products Global.com

Vitamin K found in some cheeses could help fight Covid-19, study suggests

Scientists in Netherlands explore possible link between deficiency and Covid-19 deaths

Daniel Boffey in Brussels

Patients who have died or been admitted to intensive care with Covid-19 have been found to be deficient in a vitamin found in spinach, eggs, and hard and blue cheeses, raising hopes that dietary change might be one part of the answer to combating the disease.

Researchers studying patients who were admitted to the Canisius Wilhelmina hospital in the Dutch city of Nijmegen have extolled the benefits of vitamin K after discovering a link between deficiency and the worst coronavirus outcomes.

Covid-19 causes blood clotting and leads to the degradation of elastic fibres in the lungs. Vitamin K, which is ingested through food and absorbed in the gastrointestinal tract, is key to the production of proteins that regulate clotting and can protect against lung disease.

The Dutch researchers are now seeking funding for a clinical trial, but Dr Rob Janssen, a scientist working on the project, said that in light of the initial findings he would encourage a healthy intake of vitamin K, except to those on blood-thinning medications such as warfarin.

He said: “We are in a terrible, horrible situation in the world. We do have an intervention which does not have any side effects, even less than a placebo. There is one major exception: people on anti-clotting medication. It is completely safe in other people.

“My advice would be to take those vitamin K supplements. Even if it does not help against severe Covid-19, it is good for your blood vessels, bones and probably also for the lungs.”

Janssen added: “We have [vitamin] K1 and K2. K1 is in spinach, broccoli, green vegetables, blueberries, all types of fruit and vegetables. K2 is better absorbed by the body. It is in Dutch cheese, I have to say, and French cheese as well.”

A Japanese delicacy of fermented soya beans called natto is particularly high in the second type of vitamin K and there may be cause for further studies into its health benefits, Janssen said.

“I have worked with a Japanese scientist in London and she said it was remarkable that in the regions in Japan where they eat a lot of natto, there is not a single person to die of Covid-19; so that is something to dive into, I would say.”

The research, undertaken in partnership with the Cardiovascular Research Institute Maastricht, one of Europe’s largest heart and vascular research institutes, studied 134 patients hospitalised for Covid-19 between 12 March and 11 April, alongside a control group of 184 age-matched patients who did not have the disease.

Jona Walk, a second researcher on the study, which was submitted for peer review on Friday, said: “We want to take very sick Covid-19 patients and randomise so that they get a placebo or vitamin K, which is very safe to use in the general population. We want to give vitamin K in a significantly high enough dose that we really will activate [the protein] that is so important for protecting the lungs, and check if it is safe.”

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