Studies from the Netherlands show that patients who’ve died from Covid-19, and those who survived after being admitted to intensive care, were deficient in vitamin K. Could the vitamin, which is found in blue cheese, eggs and spinach, could help combat the disease? Vitamin K, which is absorbed through the gastrointestinal tract when we eat, produces proteins that help us regulate clotting, and can protect us against lung disease.
Unfortunately, so far, the notion that vitamin K can help ward of Covid-19 is just a theory. The researchers from Holland have not yet sourced enough money to begin clinical trials. That hasn’t stopped Dr Rob Janssen, one of the scientists, from encouraging us to add a healthy dose of vitamin K to our daily diet. However, if you’re on a blood-thinning medicine like warfarin, you should not take vitamin K.
While there’s no evidence to back up the theory, taking vitamin supplements is no bad thing for most of us. In fact, it’s good for your blood vessels, bones and your lungs. If you’d rather find this vitamin in your food, you can get vitamin k1 from blueberries, broccoli, green vegetables and spinach. You’ll find k2 in French and Dutch cheeses. If you want something more exotic, a Japanese delicacy of fermented soya beans called natto is high in both types of vitamin K.
Japan’s number of Covid-19 sufferers are low. They’ve used voluntary rather than strict lockdown rules to drive the number down. It worked so well that Japan was able to lift the state of emergency during the middle of May. Could natto with its high vitamin K content have helped the Japanese to beat the virus quicker than western nations? During the early days of the pandemic, Nexer, a research company in Japan, found that nearly 40 per cent of Japanese people they surveyed ate it regularly to boost their immune system. Although there’s no scientific proof that it works, there’s enough anecdotal evidence to suggest it can help.
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