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

Vita D 2.500 Bétula, embalagem de 90 cápsulas vegetais de vitamina D3 2500 UI
Vita D 2500 90 Caps Bétula — vista lateral
Vita C 500 Bétula, embalagem de 90 cápsulas vegetais de vitamina C com rosa mosqueta e gengibre
Vita C 500 90 Caps Bétula — vista lateral
Vita D3 + K2 Bétula, vitamina D3 2000 UI e vitamina K2 MK-7, frasco de 90 comprimidos
Vita D3 + K2 90 Comp Bétula — vista lateral
Vitabet ACDE Bétula, vitaminas A, C, D e E com zinco e selénio, frasco de 90 cápsulas
Vitabet ACDE 90 Caps Bétula — vista lateral
Omega 3 + D Bétula, óleo de peixe com EPA, DHA e vitamina D3, embalagem de 60 cápsulas
Omega 3 + D 60 Caps Bétula — vista lateral
Optiven Bétula, embalagem de 30 cápsulas vegetais com castanha-da-índia, gilbardeira e vitamina C
Optiven 30 Caps Bétula — verso com tabela nutricional e ingredientes
Inmunis Bétula, equinácea com cogumelos, vitamina C, D3 e zinco, frasco de 30 cápsulas
Inmunis 30 Caps Bétula — verso com tabela nutricional e ingredientes
Kalmazinc Bétula, magnésio, potássio e zinco em comprimidos, frasco de 100 comprimidos
Kalmazinc 100 Comp Bétula — vista lateral
Energo Vital Bétula, frasco de 30 cápsulas com rhodiola rosea, eleuterococo, cordyceps e vitamina C
Energo Vital 30 Caps Bétula — verso com tabela nutricional e ingredientes
Fos-Caps Bétula, frasco de 100 cápsulas com FOS, psyllium, juba-de-leão, Bacillus coagulans e vitamina C
Fos-Caps 100 Caps Bétula — verso com tabela nutricional e ingredientes
Florabet 20 Bétula, frasco de 30 cápsulas de libertação retardada com 14 estirpes de microrganismos
Florabet 20 30 Caps Bétula — verso com tabela nutricional e ingredientes
Cran-D-Max Bétula, frasco de 60 cápsulas vegetais com cranberry, D-manose, bétula e vitamina C
Cran-D-max 60 Caps Bétula — vista lateral
Condrobet Bétula, frasco de 90 comprimidos com glucosamina, condroitina, MSM e vitamina C
Condrobet 90 Comp Bétula — vista lateral
Frasco de Óleo de Orégãos Bétula com 100 cápsulas moles de óleo essencial de orégãos e azeite virgem extra
Óleo de Orégãos 100 Caps Bétula — vista lateral

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.