Natural Defenses

Viva Saudável's Natural Defenses collection brings together food supplements from brands such as Thorne Research, NOW Foods, Lamberts, Klaire Labs, Nutergia, Be-Life, Hifas da Terra, Healthy Origins and Zeinpharma. You can find vitamin C, vitamin D3, zinc, selenium, vitamin A, B complex vitamins, multi-nutrient formulas, plant extracts and live cultures, in capsules, tablets, powder and liquid formats, with several vegan options.

What nutrients to choose for Natural Defenses


 Vitamin C, vitamin D, zinc, selenium, vitamin A, vitamin B6, vitamin B12, folic acid, iron and copper contribute to the normal functioning of the immune system. Vitamin C, vitamin E, selenium, zinc and manganese contribute to the protection of cells against undesirable oxidation. Vitamin D also contributes to the normal absorption and utilization of calcium and phosphorus.

How to choose from the collection

Compare the dose per serving and the percentage of the nutrient reference value (NRV) indicated on the label, because the difference between formulas is significant — for zinc, for example, you can find from 15 mg up to 30 mg per capsule. Use the side filters to narrow down by ingredient, brand, price or availability. The collection also includes products with live cultures, propolis, plant extracts, mushrooms, N-acetylcysteine and L-glutamine. If you are taking medication, are pregnant or breastfeeding, talk to your doctor or pharmacist before starting any supplementation.

333 products

L-Ornithine 500mg
L-Ornithine 500mg
Zeinpharma
L-Ornithine 500mg
Price: 24,83€
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Vitamina D3 2000 U.I. - Viva Saudável
Vitamina D3 2000 U.I. - Viva Saudável
Zeinpharma
Vitamin D3 2000 IU
Price: 17,52€
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Biotina Complexo 10mg
Biotina Complexo 10mg
Zeinpharma
Biotin Complex 10mg
Price: 26,32€
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Oleo de Onagra (Nachtkerzen) 500mg
Oleo de Onagra (Nachtkerzen) 500mg
Quercetina 250mg
Quercetina 250mg
Zeinpharma
Quercetin 250mg
Price: 40,52€
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Vitamin C 500mg
Zeinpharma
Vitamin C 500mg
Price: 17,86€
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L-Glutathiona 250mg - Viva Saudável
L-Glutathiona 250mg - Viva Saudável
Zeinpharma
L-Glutathione 250mg
Price: 63,52€
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Magnésio Di- Malato 500mg
Magnésio Dimalato 100mg 60 Cápsulas Zeinpharma – verso da embalagem
Magnésio Acetil Taurinato 750mg
Magnésio Acetil Taurinato 750mg
Abobora Sementes (Kurbiskern) 400mg
Abobora Sementes (Kurbiskern) 400mg
Taurina 1000mg 120 Cápsulas Zeinpharma
Zeinpharma
Taurine 1000mg
Price: 27,20€
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Astragalus 500/50mg
Astragalus 500/50mg
Zeinpharma
Astragalus 500/50mg
Price: 35,31€
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NAC (N-acetil L-Cisteína) 750mg - Viva Saudável
NAC (N-acetil L-Cisteína) 750mg - Viva Saudável
Folato (Quatrefolic) 400mcg
Folato (Quatrefolic) 400mcg
Oregano 450 mg 100 VCaps Now - Viva Saudável
L-Glutamine 100 Caps Klaire Labs - Viva Saudável

Perguntas frequentes

Which nutrients are associated with immune system function?
The European Union authorises the claim "contributes to the normal functioning of the immune system" for vitamin C, vitamin D, vitamin A, vitamin B6, vitamin B12, folic acid, zinc, selenium, iron and copper. This is the complete list regarding vitamins and minerals. Other ingredients in this collection, such as plant extracts, mushrooms or live cultures, have no authorised claims in the EU and are therefore not attributed any function here.
What is the difference between vitamin D2 and vitamin D3?
D2 (ergocalciferol) has a plant or fungal origin; D3 (cholecalciferol) is synthesised in the skin through sunlight exposure and, in supplements, is traditionally obtained from lanolin or, in vegan versions, from lichens. D3 is the most commonly used form in supplements and the one found in most products in this collection. Both are converted in the body, but D3 maintains serum levels more stably.
Can I take several of these supplements at the same time?
It is possible, but it is advisable to sum the doses. A multivitamin usually already includes vitamin C, vitamin D, and zinc, and adding isolated products on top of that can easily exceed the maximum limits, especially for zinc and fat-soluble vitamins A and D. Sum what is on each label before combining, and talk to a healthcare professional if you are taking medication.

Food supplements are not a substitute for a varied and balanced diet or a healthy lifestyle. If you are pregnant or breastfeeding, consult your doctor before taking this supplement. Not recommended in case of hypersensitivity or allergy to any of the ingredients in the formulation, or when interactions between another product and any of its constituents are described. The recommended daily dose should not be exceeded. Keep out of the reach and sight of children. Store in a cool, dry place, away from light.