# Vitamins

## What Are Vitamin Supplements?

Vitamin supplements are dietary products that provide concentrated amounts of essential vitamins to complement the normal diet and support overall health. They can contain single vitamins, such as vitamin C or vitamin D, or a combination of several vitamins in one formula. Vitamins play important roles in energy metabolism, immune function, bone health, vision, skin condition and many other processes in the body. Vitamin supplements are usually available as tablets, capsules, softgels, liquids, sprays or gummies with clearly defined daily dosages. They are intended to support a balanced lifestyle and help cover potential nutrient gaps that may occur due to busy schedules, limited food choices or specific life stages.

## Benefits of Vitamin Supplements

Vitamin supplements help support many different body functions, depending on which vitamins they contain. B-group vitamins contribute to normal energy-yielding metabolism and the reduction of tiredness and fatigue, while vitamin C supports the normal function of the immune system and helps protect cells from oxidative stress. Vitamin D plays a key role in maintaining normal bones, teeth and muscle function, and vitamin A supports normal vision and the condition of skin and mucous membranes. Vitamins E and C are important antioxidants, and certain vitamins also support psychological function and the normal functioning of the nervous system. When used correctly as part of a varied diet, vitamin supplements can help maintain vitality and long-term wellbeing.

## Uses of Vitamin Supplements

Vitamin supplements are widely used by people of different ages and activity levels who want simple daily support for their health. They can be taken as general multivitamins or as targeted single vitamins such as vitamin D, vitamin C or B-complex, depending on individual needs and recommendations. Many people turn to vitamin supplements during periods of increased workload, stress, seasonal changes, limited sun exposure or recovery. Vitamin sprays and liquids are popular for those who prefer alternatives to tablets, while gummies can be a convenient and tasty option. On our category page you can explore a wide range of vitamin supplements and choose products that best match your lifestyle, goals and dietary preferences.

## Vitamin Supplements: Side Effects and Overdose

Vitamin supplements are generally well tolerated when taken as directed, but excessive intake of certain vitamins can cause unwanted effects. Very high doses of fat-soluble vitamins such as A, D, E and K can accumulate in the body, while too much of some water-soluble vitamins may cause digestive discomfort or other symptoms in sensitive individuals. It is important not to exceed the recommended daily dose stated on the packaging and to consider total intake from food and other supplements. People with chronic illnesses, those taking prescription medications, as well as pregnant and breastfeeding women should consult a doctor or healthcare professional before starting new vitamin supplements.

## Where to Buy Vitamin Supplements in Estonia?

In Estonia, **vitamins** can be purchased from our e-shop fits.ee.

## Products in this collection

- [Vitamin D3 4000IU with Vitamin K2 90 tablets](https://fits-supplements.com/products/vitamin-d3-4000iu-with-vitamin-k2-90-tablets) - 14.9 EUR
- [Vitamin B Complex 60 tablets](https://fits-supplements.com/products/vitamin-b-complex-60-tablets) - 8.9 EUR
- [Myo inositol 800mg 90 capsules](https://fits-supplements.com/products/myo-inositol-800mg-90-capsules) - 10.9 EUR
- [Vitamin C 1000mg with Rosehip and Bioflavonoids 90 tablets](https://fits-supplements.com/products/vitamin-c-1000mg-with-rosehip-and-bioflavonoids-90-tablets) - 12.0 EUR
- [Multivitamin and Mineral 100% 120 tablets](https://fits-supplements.com/products/multivitamin-and-mineral-strong-90-tablets) - 14.9 EUR
- [Choline and Myo Inositol 90 capsules](https://fits-supplements.com/products/choline-and-myo-inositol-90-capsules) - 8.9 EUR
- [Vitamin B12 1000mcg 90 tablets](https://fits-supplements.com/products/vitamin-b12-1000mcg-90-tablets) - 8.7 EUR
- [Biotin 5000mcg 90 tablets](https://fits-supplements.com/products/biotin-5000mcg-90-tablets) - 6.6 EUR
- [Vitamin K2 MK7 100 mcg 90 tablets](https://fits-supplements.com/products/vitamin-k2-mk7-100-mcg-90-tablets) - 12.9 EUR
- [Vitamin D3 4000IU 90 softgels](https://fits-supplements.com/products/vitamin-d3-4000iu-90-softgels) - 19.8 EUR
- [Neuro Vitamin 90 tablets](https://fits-supplements.com/products/neuro-vitamin-90-tablets) - 7.8 EUR
- [Biotin 10,000mcg 90 tablets](https://fits-supplements.com/products/biotin-10-000mcg-90-tablets) - 12.9 EUR
- [Vitamin C 500mg Orange with Betacarotene chewable 60 tablets](https://fits-supplements.com/products/vitamin-c-500mg-orange-with-betacarotene-chewable-tablets) - 12.9 EUR
- [PQQ 20mg 60 capsules](https://fits-supplements.com/products/pqq-20mg-60-capsules) - 16.9 EUR
- [Vitamin E 400IU 90 softgels](https://fits-supplements.com/products/vitamin-e-400iu-90-softgels) - 12.9 EUR
- [Folic acid 400mcg 90 tablets](https://fits-supplements.com/products/folic-acid-400mcg-90-tablets) - 6.9 EUR
- [Multivitamin 100% Complex 90 tablets](https://fits-supplements.com/products/multivitamin-100-complex-90-tablets) - 10.8 EUR
- [Multivitamin for Women Over 50 Years 60 tablets](https://fits-supplements.com/products/multivitamin-for-women-over-50-years-tablets) - 13.8 EUR
- [Vitamin A 5000IU 90 tablets](https://fits-supplements.com/products/vitamin-a-5000iu-90-tablets) - 12.0 EUR
- [Vitamin B1 100mg (Thiamin) 90 tablets](https://fits-supplements.com/products/vitamin-b1-100mg-thiamin-90-tablets) - 9.9 EUR
- [Vitamin D3 2000IU with Vitamin K2 90 tablets](https://fits-supplements.com/products/vitamin-d3-2000iu-with-vitamin-k2-90-tablets) - 12.0 EUR
- [Vitamin B2 100mg (Riboflavin) 60 tablets](https://fits-supplements.com/products/vitamin-b2-100mg-riboflavin-90-tablets) - 9.9 EUR
- [Selenium and ACE 90 tablets](https://fits-supplements.com/products/selenium-and-ace-90-tablets) - 12.9 EUR
- [Multivitamins for 11-18 Years Old 60 tablets](https://fits-supplements.com/products/multivitamins-for-11-18-years-old-tablets) - 13.8 EUR
- [Vitamin K1 100mcg 30 tablets](https://fits-supplements.com/products/vitamin-k1-100mcg-tablets) - 7.8 EUR
- [Potassium 200mg and Vitamin C 90 tablets](https://fits-supplements.com/products/potassium-200mg-and-vitamin-c-90-tablets) - 6.9 EUR
- [Vitamin D3 2000IU 90 softgels](https://fits-supplements.com/products/vitamin-d3-2000iu-90-softgels) - 18.0 EUR
- [Vitamin B3 16mg (Niacin) 90 tablets](https://fits-supplements.com/products/vitamin-b3-16mg-niacin-90-tablets) - 7.8 EUR
- [Vitamin B12 Strong 5000mcg 90 tablets](https://fits-supplements.com/products/vitamin-b12-strong-5000mcg-90-tablets) - 24.9 EUR
- [Vitamin C powder 50g](https://fits-supplements.com/products/vitamin-c-powder-50g-1) - 6.9 EUR
- [Vitamin K2 MK4 100 mcg 90 tablets](https://fits-supplements.com/products/vitamin-k2-mk4-100-mcg-90-tablets) - 9.9 EUR
- [Vitamin B6 12mg 90 tablets](https://fits-supplements.com/products/vitamin-b6-12mg-90-tablets) - 11.9 EUR
- [Liquid Womens Multivitamin sugar free 500ml](https://fits-supplements.com/products/liquid-womens-multivitamin-sugar-free-500ml) - 24.9 EUR
- [Vitamin K2 MK7 500 mcg 90 tablets](https://fits-supplements.com/products/vitamin-k2-mk7-500-mcg-90-tablets) - 34.9 EUR
- [Vitamin D3 2000IU 30 softgels](https://fits-supplements.com/products/vitamin-d3-2000iu-softgels) - 7.8 EUR
- [Vitamin D3 4000IU 30 softgels](https://fits-supplements.com/products/vitamin-d3-4000iu-softgels) - 8.7 EUR
- [Liquid Biotin 10000 mcg sugar free 500ml](https://fits-supplements.com/products/liquid-biotin-10000-mcg-sugar-free-500ml) - 24.9 EUR
- [Liquid Kids Multivitamin sugar free 500ml](https://fits-supplements.com/products/liquid-kids-multivitamin-sugar-free-500ml) - 19.9 EUR
- [Liquid Mens Multivitamin sugar free 500ml](https://fits-supplements.com/products/liquid-mens-multivitamin-sugar-free-500ml) - 24.9 EUR
- [Inositol powder 200g](https://fits-supplements.com/products/inositol-powder-200g) - 19.0 EUR
- [Vegan Vitamin D3 1000IU 90 tablets](https://fits-supplements.com/products/vegan-vitamin-d3-1000iu-90-tablets) - 9.9 EUR
- [Vitamin B Complex Strong 60 tablets](https://fits-supplements.com/products/vitamin-b-complex-strong-60-tablets) - 7.8 EUR
- [Vitamin B6 100mg 90 tablets](https://fits-supplements.com/products/vitamin-b6-100mg-90-tablets) - 11.9 EUR

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> Source: [FITS Dietary Supplements](https://fits-supplements.com/collections/vitamins)
> Updated: 2026-07-21