Tag Archives: vitamin D

Sunbathing for mushrooms; a recipe for vitamin D

Mushroom skin, like human skin, produces vitamin D when exposed to sunlight. Mushrooms are naturally rich in ergosterol (provitamin D, or D2) and you can greatly increase the amount they contain by leaving them to soak up the sun.

Shitake mushrooms have the highest natural levels of vitamin D of all mushrooms. For a rough idea of how much you can increase their potency by leaving them to dry in the sun, if the vitamin D starting point is about 100IU/100g before exposure, leaving them in the sun for about 12 hours (6 hours per day for two days when the sun is strongest) will increase the amount to about 46,000IU/100g. Pretty impressive.

For some time, epidemiologists have shown that people living near the equator are less likely to suffer from so many of the diseases that plague the higher latitudes. Living in equatorial regions means you are less likely to suffer from cancer, diabetes, depression, arthritis and heart disease, as well as upper respiratory-tract infections such as flu and tuberculosis.

The sun, and its by-product, vitamin D are as vital to life as a roof over your head, food and water; a big deficiency can have disastrous results.

In the context of Covid-19, I keep hearing people say ‘how can a vitamin D deficiency be significant when sunny countries like Iran, Spain and Italy have been so affected?’

The answer is, even if you enjoy the sun during the winter, in mid-latitude countries (ie between the 35th-50th parallel North or South) where Tehran, Madrid, Bordeaux and Milan are situated, you will make no vitamin D whatsoever from November to February. In the higher latitudes, where London, Berlin, Brussels, Moscow and the Scandinavian countries are situated, you make no vitamin D from the sun between October and March. In either case, unless you supplement, by the end of winter, your levels will be low, and you will be more vulnerable to disease.

Recipe for vitamin D-rich mushrooms

Use fresh organic shitake, maitake, button, oyster or other mushrooms. Slice the mushrooms and place them evenly on a tray, which you should expose to direct sunlight, preferably during the summer months – June, July or August – between 10am and 4pm. Cover the mushrooms before nightfall to protect from dew condensation. Repeat the process the next sunny day. And again, until the mushrooms are totally dried (crispy).

Once thoroughly dry, the mushrooms may be stored in a glass jar, to which you have added a tablespoon of uncooked rice to prevent moisture, for up to a year. To serve, use about 10g person, rehydrate in water for an hour, and cook as desired.

Gin and tonic and have I found my calling?

I am writing today in my capacity as a biomedical research scientist. I think I may have found the perfect antidote to Covid-19:

Gin ‘n tonic with a slice of lemon, enjoyed in the sun and accompanied by a bowl of cashew nuts, and a cigarette.

Gin is made from juniper berries, which are full of inflammation-fighting antioxidants. The oils contained in juniper berries are expectorant, which helps reduce lung congestion. Gin and tonic was found in a study to be the best, or at least the least toxic, drink for diabetics. Ergo gin is practically a superfood, innit.

On to tonic water: The quinine in tonic is a zinc ionophore, which means that it helps zinc pass the cell membrane barrier and enter the cell where it becomes extremely busy and useful fighting the virus.

The lemon slice is not only a good source of vitamin C, but also potassium and magnesium.

Cashew nuts are packed with protein, zinc, potassium and magnesium, and also contain B vitamins and vitamin C. Cashews are basically an antiviral nut!

The benefits of nicotine are currently being studied at the Pitié Salpêtrière Hospital in Paris after it was noticed that smokers were four times less affected by Covid-19 than non-smokers. It is thought that nicotine might attach to cell receptors, blocking the coronavirus from spreading. In the meantime, sales of nicotine patches in pharmacies in France are being rationed. Watch this space!

Last, but by no means least, enjoy your drink in the sun, if you can. Sun exposure (without burning) is the best and fastest way to increase your vitamin D levels, which are absolutely crucial when it comes to fighting viruses.

Admit it – I’ve nailed it haven’t I?