Collection: Vitamin D

What Is Vitamin D Supplements?

Vitamin D is a fat-soluble vitamin that plays an essential role in bone health, immune function and muscle performance. The body can produce vitamin D when the skin is exposed to sunlight, and smaller amounts are obtained from food such as oily fish, egg yolks and fortified products. However, in northern climates and during darker seasons, natural synthesis from sunlight can be limited. Vitamin D supplements provide a precisely measured dose of this important vitamin and are available as capsules, tablets, sprays and drops, usually in the forms vitamin D3 (cholecalciferol) or sometimes vitamin D2.

Benefits of Vitamin D Supplements

Vitamin D supplements help support many key processes in the body. Vitamin D contributes to the normal absorption and use of calcium and phosphorus, which is crucial for maintaining normal bones and teeth. It also supports the normal function of the immune system and helps keep muscles working properly, which is important for balance and everyday movement. For many people, especially in regions with limited sunlight or during autumn and winter, vitamin D supplements are a convenient way to help maintain adequate levels of this vitamin as part of a balanced lifestyle.

Uses of Vitamin D Supplements

Vitamin D supplements are commonly used by adults and children who want to support their bones, teeth, immune system and muscle function throughout the year. They are often recommended during periods of low sun exposure, when spending a lot of time indoors or when the diet contains few natural sources of vitamin D. Supplements can be taken as daily capsules or tablets, or as drops and sprays that allow flexible dosing for different age groups. On our category page you can explore a variety of vitamin D products – from simple single-ingredient formulas to combinations with calcium, vitamin K2 or other nutrients – and choose options that best match your age, lifestyle and wellness goals.

Vitamin D Supplements: Side Effects and Overdose

Vitamin D supplements are generally well tolerated when used as directed, but, as with any supplement, excessive intake can cause unwanted effects. Because vitamin D is fat-soluble, very high doses over a long period may lead to too much calcium in the blood, which can cause nausea, stomach discomfort, thirst or other symptoms in sensitive individuals. It is important not to exceed the recommended daily dose stated on the packaging unless advised by a healthcare professional, and to consider total intake from all sources. People with kidney problems, certain medical conditions, those taking prescription medications, as well as pregnant and breastfeeding women should consult a doctor or healthcare professional before using higher-dose vitamin D supplements.

Where to Buy Vitamin D in Estonia?

In Estonia, vitamin D can be purchased from our e-shop fits.ee.