# Antioxidants

## What Are Antioxidant Supplements?

Antioxidant supplements are dietary products that provide vitamins, minerals and plant compounds which help protect cells from oxidative stress. Oxidative stress is caused by free radicals – unstable molecules that are naturally formed in the body and can increase due to factors such as pollution, stress, intense exercise or an unbalanced diet. Antioxidant supplements may contain vitamin C, vitamin E, selenium, zinc, coenzyme Q10, alpha-lipoic acid, resveratrol, green tea extract and other phytonutrients. They are usually available as capsules, tablets, softgels, powders or liquid forms with clearly defined daily dosages and are designed to complement a varied diet rich in fruit and vegetables.

## Benefits of Antioxidant Supplements

Antioxidant supplements help support the body’s natural defence system by neutralising free radicals and protecting cells from oxidative damage. Vitamins C and E, together with minerals such as zinc and selenium, contribute to the protection of cells and support normal immune function. Coenzyme Q10, alpha-lipoic acid and certain plant extracts are often used to support energy metabolism and overall vitality. As part of a healthy lifestyle, antioxidant supplements may help maintain skin health, support cardiovascular and eye health and contribute to long-term wellbeing, especially during periods of increased physical or emotional stress.

## Uses of Antioxidant Supplements

Antioxidant supplements are often chosen by adults who want to support their immune system, skin, general health or recovery after demanding periods. They can be used alongside a diet rich in colourful fruit, vegetables, nuts and seeds, during seasonal changes, intense training blocks or times of high workload. Many antioxidant formulas combine several nutrients in one product, while others focus on a single ingredient such as vitamin C or resveratrol. On our category page you can explore a wide range of antioxidant supplements and choose products that best match your goals, lifestyle and daily routine.

## Antioxidant Supplements: Side Effects and Overdose

Antioxidant supplements are generally well tolerated when used according to the instructions, but, as with any dietary supplement, individual reactions are possible. Some people may experience mild digestive discomfort, headache or allergic symptoms depending on personal sensitivity and the product’s full ingredient list. Excessive intake of certain antioxidants, especially fat-soluble vitamins such as vitamin A or very high doses of vitamin E, may cause unwanted effects or interfere with the action of medications. 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 medicines, as well as pregnant and breastfeeding women should consult a doctor or healthcare professional before starting antioxidant supplements.

## Where to Buy Antioxidant Supplements in Estonia?

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

## Products in this collection

- [Soya Isoflavones, Kudzu Root and Red Clover 60 capsules](https://fits-supplements.com/products/soya-isoflavones-kudzu-root-and-red-clover-tablets) - 9.9 EUR
- [Turmeric 2500mg and Black Pepper 10mg 60 tablets](https://fits-supplements.com/products/turmeric-2500mg-and-black-pepper-10mg-tablets) - 12.9 EUR
- [Turmeric Strong 2500mg with Ginger and Black Pepper 60 tablets](https://fits-supplements.com/products/turmeric-strong-2500mg-with-ginger-and-black-pepper-tablets) - 15.9 EUR
- [Coenzyme Q10 100mg 30 capsules](https://fits-supplements.com/products/coenzyme-q10-100mg-30-capsules) - 8.9 EUR
- [Turmeric Strong 2500mg 60 tablets](https://fits-supplements.com/products/turmeric-strong-2500mg-tablets) - 9.9 EUR
- [Moringa Strong 12000mg 60 capsules](https://fits-supplements.com/products/moringa-strong-12000mg-60-capsules) - 10.9 EUR
- [Coenzyme Q10 100mg 90 capsules](https://fits-supplements.com/products/coenzyme-q10-100mg-90-capsules) - 19.9 EUR
- [NAC N-Acetyl L-Cysteine 150mg 90 capsules](https://fits-supplements.com/products/nac-n-acetyl-l-cysteine-150mg-90-capsules) - 7.8 EUR
- [Organic Spirulina 1000 tablets](https://fits-supplements.com/products/organic-spirulina-1000-tablets) - 24.9 EUR
- [NMN Strong 800mg 60 capsules](https://fits-supplements.com/products/nmn-strong-800mg-60-capsules) - 49.0 EUR
- [Astaxanthin Strong 12mg 90 softgels](https://fits-supplements.com/products/astaxanthin-strong-12mg-90-softgels) - 30.0 EUR
- [Cranberry Strong 14,400mg 60 capsules](https://fits-supplements.com/products/cranberry-strong-14-400mg-60-capsules) - 7.9 EUR
- [Lutein 40mg 60 capsules](https://fits-supplements.com/products/lutein-40mg-60-capsules) - 9.9 EUR
- [Bacopa Monnieri 400mg 60 capsules](https://fits-supplements.com/products/bacopa-monnieri-500mg-capsules) - 6.9 EUR
- [Milk Thistle 13000mg 60 capsules](https://fits-supplements.com/products/milk-thistle-13000mg-60-capsules) - 15.0 EUR
- [Vitamin E 400IU 90 softgels](https://fits-supplements.com/products/vitamin-e-400iu-90-softgels) - 12.9 EUR
- [Spirulina 500mg 180 tablets](https://fits-supplements.com/products/spirulina-500mg-180-tablets) - 12.9 EUR
- [Cranberry extract & D-mannose 60 capsules](https://fits-supplements.com/products/cranberry-extract-d-mannose-60-capsules) - 11.9 EUR
- [Shilajit Fulvic acid 600mg 60 capsules](https://fits-supplements.com/products/shilajit-fulvic-acid-600mg-60-capsules) - 16.9 EUR
- [Apple Cider Vinegar 500mg 30 tablets](https://fits-supplements.com/products/apple-cider-vinegar-500mg-tablets) - 6.6 EUR
- [Vision Care 60 capsules](https://fits-supplements.com/products/vision-care-tablets) - 12.9 EUR
- [Pumpkin Seed Oil 500mg 60 capsules](https://fits-supplements.com/products/pumpkin-seed-oil-500mg-capsules) - 7.5 EUR
- [Acai Berry 2000mg and Green Tea 1350mg 60 tablets](https://fits-supplements.com/products/acai-berry-2000mg-and-green-tea-1350mg-tablets) - 15.0 EUR
- [Cat's claw Strong 2000mg 60 capsules](https://fits-supplements.com/products/cat-s-claw-strong-2000mg-capsules) - 13.8 EUR
- [Cinnamon 3000mg 60 tablets](https://fits-supplements.com/products/cinnamon-3000mg-tablets) - 9.9 EUR
- [Pomegranate Extract 4000mg 60 capsules](https://fits-supplements.com/products/pomegranate-extract-4000mg-capsules) - 8.7 EUR
- [Apple Cider Vinegar Complex 4 in 1 60 capsules](https://fits-supplements.com/products/apple-cider-vinegar-complex-4-in-1-capsules) - 11.7 EUR
- [Algae Oil 500mg DHA 200mg 60 softgels](https://fits-supplements.com/products/algae-oil-500mg-dha-200mg-60-softgels) - 14.9 EUR
- [Quercetin 400mg 90 capsules](https://fits-supplements.com/products/quercetin-400mg-90-capsules) - 15.9 EUR
- [Castor Oil 500mg 90 softgels](https://fits-supplements.com/products/castor-oil-500mg-90-softgels) - 12.9 EUR
- [Astaxanthin 4mg 90 softgels](https://fits-supplements.com/products/astaxanthin-4mg-90-softgels) - 19.9 EUR
- [Green Tea 1000mg 30 tablets](https://fits-supplements.com/products/green-tea-1000mg-tablets) - 8.7 EUR
- [Grape Seed Extract 6000mg 60 tablets](https://fits-supplements.com/products/grape-seed-extract-6000mg-tablets) - 9.0 EUR
- [Oregano Oil 25mg 60 capsules](https://fits-supplements.com/products/oregano-oil-25mg-capsules) - 7.5 EUR
- [Green Tea 850mg 60 capsules](https://fits-supplements.com/products/green-tea-850mg-capsules) - 8.1 EUR
- [Dandelion 3000mg 60 capsules](https://fits-supplements.com/products/dandelion-3000mg-capsules) - 9.0 EUR
- [Organic Turmeric powder 300g](https://fits-supplements.com/products/bio-organic-turmeric-300g-powder) - 9.6 EUR
- [OPC Grape Seed Extract 500mg 90 capsules](https://fits-supplements.com/products/opc-grape-seed-extract-500mg-90-capsules) - 16.9 EUR
- [NAC N-Acetyl L-Cysteine powder 100g](https://fits-supplements.com/products/nac-n-acetyl-l-cysteine-100g-powder) - 17.9 EUR
- [Quercetin Complex 90 capsules](https://fits-supplements.com/products/quercetin-complex-90-capsules) - 15.9 EUR
- [Potassium Chloride powder 100g](https://fits-supplements.com/products/potassium-chloride) - 10.0 EUR
- [NAD+ and Resveratrol 60 capsules](https://fits-supplements.com/products/nad-and-resveratrol-60-capsules) - 39.0 EUR
- [Resveratrol 450mg 60 capsules](https://fits-supplements.com/products/resveratrol-450mg-60-capsules) - 19.9 EUR
- [NAD+ Strong 500mg 60 capsules](https://fits-supplements.com/products/nad-strong-500mg-60-capsules) - 39.0 EUR
- [Organic Chlorella 500mg 180 tablets](https://fits-supplements.com/products/chlorella-bio-500mg-180-tablets) - 19.9 EUR
- [Astaxanthin 4mg 30 softgels](https://fits-supplements.com/products/astaxanthin-4mg-30-softgels) - 7.8 EUR
- [Asparagus (Shatavari) 600mg 60 capsules](https://fits-supplements.com/products/asparagus-shatavari-600mg-capsules) - 9.9 EUR
- [Quercetin and Bromelain Complex 90 capsules](https://fits-supplements.com/products/quercetin-and-bromelain-complex-90-capsules) - 17.9 EUR
- [NAD+ powder 50g](https://fits-supplements.com/products/nad-powder-50g) - 34.9 EUR
- [Testo Booster Strong 90 capsules](https://fits-supplements.com/products/longjack-tongkat-ali-150mg-90-capsules-copy) - 11.9 EUR
- [Dandelion extract powder 100g](https://fits-supplements.com/products/dandelion-extract-100g-powder) - 11.9 EUR
- [Hesperidin 600mg 60 capsules](https://fits-supplements.com/products/hesperidin-600mg-60-capsules) - 11.9 EUR
- [Antioxidant Boost 60 tablets](https://fits-supplements.com/products/antioxidant-boost-tablets) - 9.9 EUR
- [Organic Chlorella powder 300g](https://fits-supplements.com/products/bio-organic-chlorella-300g-powder) - 19.9 EUR
- [Organic Chlorella 500mg 1000 tablets](https://fits-supplements.com/products/chlorella-bio-500mg-1000-tablets) - 39.0 EUR
- [Kudzu Root 500mg 40% Isoflavones 60 capsules](https://fits-supplements.com/products/kudzu-root-500mg-40-isoflavones-capsules) - 9.9 EUR
- [Longjack Tongkat Ali 150mg 90 capsules](https://fits-supplements.com/products/longjack-tongkat-ali-150mg-90-capsules) - 24.9 EUR
- [Organic Brahmi (Bacopa Monnieri) powder 100g](https://fits-supplements.com/products/bio-organic-brahmi-bacopa-monnieri-100g-powder) - 11.9 EUR
- [Cat's Claw powder 50g](https://fits-supplements.com/products/cat-s-claw-50g-powder) - 9.0 EUR
- [Vegan Vitamin D3 1000IU 90 tablets](https://fits-supplements.com/products/vegan-vitamin-d3-1000iu-90-tablets) - 9.9 EUR
- [Organic Spirulina powder 300g](https://fits-supplements.com/products/bio-organic-spirulina-300g-powder) - 13.9 EUR
- [Organic Shatavari (Asparagus) powder 200g](https://fits-supplements.com/products/bio-organic-shatavari-asparagus-200g-powder) - 11.9 EUR
- [Organic Triphala powder 200g](https://fits-supplements.com/products/bio-organic-triphala-200g-powder) - 11.9 EUR
- [Triphala 800mg 60 capsules](https://fits-supplements.com/products/triphala-800mg-capsules) - 9.9 EUR
- [Citrus Bioflavonoids 650mg 90 capsules](https://fits-supplements.com/products/citrus-bioflavonoids-650mg-90-capsules) - 12.9 EUR
- [Sunflower Lecithin 400 mg 60 gummies](https://fits-supplements.com/products/sunflower-lecithin-gummies) - 19.9 EUR
- [Alpha Lipoic Acid Strong 700mg 60 capsules](https://fits-supplements.com/products/alpha-lipoic-acid-strong-700mg-60-capsules) - 12.9 EUR
- [Coenzyme Q10 300mg 90 capsules](https://fits-supplements.com/products/coenzyme-q10-300mg-90-capsules) - 34.9 EUR
- [Coenzyme Q10 300mg 30 capsules](https://fits-supplements.com/products/coenzyme-q10-300mg-30-capsules) - 12.9 EUR
- [Andrographis Extract 480mg 60 capsules](https://fits-supplements.com/products/andrographis-extract-480mg-60-capsules) - 11.9 EUR
- [OPC Grape Seed Extract powder 200g](https://fits-supplements.com/products/opc-grape-seed-extract-powder-200g) - 34.9 EUR

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> Source: [FITS Dietary Supplements](https://fits-supplements.com/collections/antioxidants)
> Updated: 2026-07-24