Importance of Vitamin D in Immunity Building
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Importance of Vitamin D in Immunity Building

Jan 15, 2021

Why is Vitamin D Important?

Vitamin D is involved in a wide array of functions in the body, more so than any other vitamin. Originally understood for its importance in supporting bone health, there is now extensive global research showing that Vitamin D extends well beyond this. Vitamin D supports normal muscle function, normal blood Calcium levels, and the absorption and utilization of Calcium and Phosphorus, as well as the process of cell division. Whilst Vitamin C and Zinc are commonly used to support the normal functioning of the immune system, fewer people know of the important role Vitamin D plays in this.

How to Maintain Levels?

Three ways you can get Vitamin D: exposure of the skin to sunlight, food (it is present in small amounts in foods such as mushrooms, eggs, and fatty fish), and Vitamin D supplements.


Vitamin D from Sun Exposure

The body naturally produces Vitamin D when directly exposed to sunlight containing UVB radiation, which is how most people keep their Vitamin D status topped up in the spring and summer months. Since UVB radiation does not penetrate through glass, it is important for everyone to have exposure to sunlight outdoors.

For most people, the current stay at home advice will mean being indoors for much of the day, which could result in not getting enough Vitamin D from exposure to sunlight. Where possible, it is important to take advantage of sunny days by getting out in the garden and for regular exercise when we can. The best way to do this is by exposing the forearms, hands, or lower legs to the sun, without sunscreen, for a short time between 11 am and 3 pm. This will help keep Vitamin D status topped up. If you do not have access to your own outside space, going out once a day for a walk or run, or some other form of regular exercise is particularly important.

Vitamin D from Food

Vitamin D can be found in many different foods and drink groups, albeit in relatively modest amounts. These include fish, such as salmon and sardines, fish liver oils, egg yolks, butter, and mushrooms. Certain foods and drinks have been fortified with added Vitamin D, such as milk (cow’s milk, almond milk, and soymilk), fortified fruit juices, and some fortified cereals. That said, it is unlikely you will be able to get enough Vitamin D from diet alone, as the levels found in food are generally quite small and many people are not consuming large amounts of such foods.

Vitamin D Supplements

Vitamin D supplements come in a variety of different forms including tablets, liquids, and drops so they are suitable for all age groups. During these times, where the majority of people are spending most of their time indoors, taking a Vitamin D supplement can be a convenient way to safeguard your intake.

Ultra Vitamin D, the UK’s number one Vitamin D brand, is a premium-quality supplement, produced to GMP quality control. It contains Vitamin D3, the preferred form of Vitamin D, naturally produced by the body on exposure to sunlight.

As Vitamin D is such a key nutrient for the body, it is important to ensure you are getting a sufficient intake. Exposure to sunlight is typically the best way to top up your Vitamin D levels but, in the current circumstances, this is not always possible. Where you can, try to get outside and expose your skin to the sun for around 15 minutes a day. A Vitamin D supplement can give you a convenient way to safeguard your Vitamin D intake if you feel you are not getting enough direct exposure to sunlight.


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