Being aware of vitamin D: why, when and how to choose the right supplement?

Living in Estonia, we are used to the fact that from autumn to spring, the sun becomes an increasingly rare guest. Although it may seem that this only affects our mood, in reality the contribution is much deeper – the lack of sunlight is the main reason why many of us develop a vitamin D deficiency .

But why is vitamin D so important and how do you find the most suitable supplement among the many? Let’s take a closer look.

What is vitamin D and why is it needed?

Vitamin D is not just a vitamin, but also a hormonally active compound that has several functions in the body. It is best known as a regulator of bone and calcium metabolism , but in fact its effects extend far beyond:

• Contributes to the normal functioning of the immune system

• Supports muscle function and nervous system function

• Participates in the process of cell division

• Maintains the normal condition of bones and teeth

Modern research also links vitamin D levels to mood, cardiovascular health, and metabolism, but further studies are needed to confirm these connections.

How does vitamin D deficiency occur?

The body produces vitamin D when exposed to UVB radiation from the sun. However, in our latitudes, especially from October to March , sunlight is too weak to synthesize enough vitamin D.

Groups at risk for vitamin D deficiency include:

• Elderly people

• Toddlers

• People with dark skin tones

• People with limited mobility or staying indoors

• Pregnant and nursing mothers

To assess your vitamin D levels, you can take a blood test to measure your 25(OH)D level. A value above 75 nmol/l is considered optimal, but in Estonia, many people’s levels are below this.

Which vitamin D supplement to choose?

🧠 Choose the right dosage – less is not necessarily more

• 20–50 µg per day is suitable for general strengthening use and prevention of moderate deficiency

• 100 µg per day may be appropriate in cases of higher need or confirmed deficiency (e.g. based on blood test), but should be used with caution

🌿 Animal or plant-based?

Traditionally, vitamin D₃ is derived from sheep’s wool (lanolin), but vegan-friendly D₃ vitamins are made from algae (lichen extract) . They are 100% plant-based and proven effective.

Pure+ Vitamin D Selection – an informed choice for every need

Vegan D3 capsules 50 µg and 100 µg – plant-based, stronger dose, suitable for daily use as well as for covering increased needs in autumn and winter.

Vitamin D3 50 µg and 100 µg (from lanolin) – a classic form of D3 in highly absorbable capsules. Suitable for those who are not necessarily looking for vegan products.

All Puhdas+ D vitamins:

• Does not contain artificial additives

• Are lactose and gluten free

• Made in Finland with a focus on quality

Vitamin D is much more than the “sunshine vitamin” – it is important for daily health support, especially in Nordic climates. When choosing the right product, it is worth considering your lifestyle, diet and needs. If necessary, ask your doctor or pharmacist for advice and remember that a dietary supplement is not a substitute for a varied diet and a healthy lifestyle.