Collection: Immune System

What Are Immune System Supplements?

Immune system supplements are dietary products formulated to support the normal function of the immune system and the body’s natural defences. These formulas often contain a combination of vitamins, minerals and plant extracts such as vitamin C, vitamin D, zinc, selenium, vitamin A, B-group vitamins, elderberry, echinacea, beta-glucans and probiotics. Immune support supplements are usually available as capsules, tablets, powders, syrups, gummies or effervescent tablets with clearly defined daily dosages. They are designed to complement a balanced diet, good sleep and a healthy lifestyle, not to replace them.

Benefits of Immune System Supplements

Immune system supplements help provide key nutrients that support the body’s defence mechanisms, especially during demanding periods or seasonal changes. Vitamin C, vitamin D, zinc and selenium contribute to the normal function of the immune system and help protect cells from oxidative stress. Some immune formulas also include plant extracts such as elderberry or echinacea, which are traditionally used to support the upper respiratory tract and overall resilience. When taken regularly as part of a varied diet, immune support supplements can help maintain vitality, energy and readiness to cope with everyday challenges.

Uses of Immune System Supplements

Immune system supplements are often chosen during autumn and winter, in times of increased workload or stress, or whenever additional immune support is desired. They can be used daily as part of a morning routine, taken with meals or used in short courses according to the manufacturer’s recommendations. Some people prefer simple combinations such as vitamin C and zinc, while others choose complex immune formulas with added vitamin D, selenium, plant extracts or probiotics. On our category page you can explore a wide range of immune system supplements and select products that best match your age, lifestyle and wellness goals.

Immune System Supplements: Side Effects and Overdose

Immune system supplements are generally well tolerated when used according to the instructions, but individual reactions are possible, as with any dietary supplement. 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 vitamins and minerals – for example vitamin A, vitamin D or zinc – may cause unwanted effects, so it is important not to exceed the recommended daily dose stated on the packaging and to consider total intake from all sources. 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 immune support supplements.

Where to Buy Immune System Supplements in Estonia?

In Estonia, immune system supplements can be purchased from our e-shop fits.ee.