0
en
US
X
× SuperSmart Learn by health topic New articles Popular articles Visit our shop My account Smart Prescription Blog Loyalty scheme Language: English
Immune system, fatigue and infections Advice

The 6 best vitamins for the immune system

The European Food Safety Authority (EFSA) has compiled a list of vitamins that support normal immune system function. Discover these 6 unquestionably effective vitamins, and the foods that contain them.
Foods rich in immune-boosting vitamins
Discover the 6 most important vitamins for immunity.
Rédaction Supersmart.
2020-11-02 (blog.publication: 2020-11-05)Comments (0)

Vitamin A

Vitamin A is a fat-soluble vitamin which plays a key role in the process of cell specialisation. Important for the production of certain eye pigments, it helps maintain normal vision. It also supports the health of the skin and mucous membranes.

Vitamin A and immunity

Vitamin A is also known for its role in regulating cellular immune responses and humoral immune processes (1). It is thus recognised by the EFSA as directly supporting the normal function of the immune system (2).

Which foods are rich in vitamin A?

Vitamin A or retinol is found in animal-source foods, such as cod liver oil, cooked chicken livers, butter, crème fraîche, eggs ... But we also get vitamin A from plant-source foods rich in beta-carotene (a compound which is converted into retinol in the body): cooked sweet potatoes, carrots, pumpkin, apricots... You also have the option of taking a natural carotenoid complex with a high beta-carotene content (such as Carottol™).

Vitamin C

The famous vitamin C, also known as L-ascorbic acid, is a water-soluble vitamin . It too is involved in numerous physiological reactions. It supports normal formation of the collagen necessary for healthy blood vessels, cartilage, skin, bones and teeth. It also plays a role in ensuring normal nervous system function and energy metabolism.

Vitamin C and immunity

Vitamin C plays a key role in our immune defences, too. In particular, it appears to both support the function of the epithelial barrier and help scavenge oxidants and eliminate spent neutrophils. Conversely, deficiency in vitamin C is associated with a decrease in immunity (3). Thus according to the EFSA, ascorbic acid supports the normal function of the immune system function (4).

Which foods are rich in vitamin C ?

To ensure a good intake of vitamin C, you need to eat plenty of fruits and vegetables such as guava, kiwi fruit, oranges, red peppers and broccoli... You can also take a vitamin C supplement, preferably liposomal vitamin C, the form best absorbed by the body (for example, the product Liposomal Vitamin C).

Vitamin B12

One of the 8-strong group of B vitamins,vitamin B12, or cobalamin, is also a water-soluble vitamin. Essential for cell renewal, it plays a role in the formation of red blood cells, the normal metabolism of homocysteine and in helping to reduce fatigue.

Vitamin B12 and immunity

B12 also appears to act as an immunomodulator for cellular immunity, with a particular effect on lymphocyte levels (5). The EFSA thus recognises this vitamin as contributing to normal immune system function (6).

Which foods are rich in vitamin B12?

Vitamin B12 is found mainly in animal-source foods: offal, seafood, meat, fish... That’s why vegans and vegetarians in particular (but not exclusively!), are advised to supplement with B12. The most active form of vitamin B12 is called methylcobalamin (try, for example, the product Methylcobalamine).

Vitamin D

Another star nutrient, vitamin D or calciferol is a fat-soluble vitamin. As well as being present in the diet, it is produced by the body from cholesterol or ergocholesterol, when the skin is exposed to the sun’s rays. Vitamin D plays a role in maintaining normal muscle function and healthy teeth. It also helps ensure normal development of bones in children.

Vitamin D and immunity

Vitamin D also works at another level: it plays a role in modulating innate and adaptive immune responses, and stimulating the defensive capacity of mucous membranes (7). It is therefore classified by the EFSA as one of the compounds that support normal immune system function (8).

Which foods are rich in vitamin D?

Oils and oily fish are the foods that contain most vitamin D. They include salmon, mackerel, sardines, tuna, cod liver oil, olive oil … Dark chocolate and cooked button mushrooms are also good sources. To ensure an adequate vitamin D intake, make sure you also expose your skin to the sun on a regular basis - even if you work indoors and the weather sometimes makes this difficult. In terms of supplements, it’s best to choose a form with high bioavailability like vitamin D3, (for example Vitamin D3 5000 IU).

Vitamin B9, or folic acid

What exactly is it?

Vitamin B9, also known as folic acid or folate, is a water-soluble vitamin which plays a key role in many of the body’s functions, including normal production of amino acids and normal psychological function. It also contributes to maternal tissue growth during pregnancy.

Folic acid and immunity

Involved in the process of cell division, folic acid also influences immunity. Folate deficiency has a direct effect on cell-mediated immunity (11). According to the EFSA, therefore, this is another vitamin that supports normal immune system function (12).

Which foods are rich in vitamin B9?

Folic acid is found in liver, egg yolk, nutritional yeast, nuts (walnuts, hazelnuts, almonds...), green leafy vegetables, (spinach, salad ...), etc. You can also take a folate supplement (such as SuperFolate, voted ‘Product of the Year’ at the 2016 NutraIngredients Awards).

Vitamin B6

Vitamin B6 is a water-soluble vitamin of which there are 6 different forms (pyridoxal, pyridoxine, etc.) In the body, vitamin B6 is always converted into an active form called pyridoxal 5-phosphate. B6 plays a role in the normal metabolism of proteins and glycogen, in reducing fatigue, in normal nervous system function ...

Vitamin B6 and immunity

Several studies have shown that deficiency in vitamin B6 has an effect on humoral and cell-mediated immune responses (9). Once again, this is a vitamin judged by the EFSA to support normal immune system function (10).

Which foods are rich in vitamin B6?

Good dietary sources of B6 include offal, pork, lamb, grilled swordfish, bananas, pulses, canned prune juice ... Pyridoxamine, a natural form of vitamin B6 that’s particularly stable and absorbable, is available as a dietary supplement (such as the product Pyridoxamine).


To obtain the benefits of the majority of these vitamins from a single supplement, you may prefer to take a multivitamin product. We’d mention in particular the well-known multivitamins Daily 3® (taken 3 times a day) and Daily 1® (taken just once a day). Both contain vitamins A, B6, B12, C and D, as well as minerals that also support normal function of the immune system.

References

  1. Huang Z, Liu Y, Qi G, Brand D, Zheng SG. Role of Vitamin A in the Immune System. J Clin Med. 2018;7(9):258. Published 2018 Sep 6. doi:10.3390/jcm7090258
  2. https://www.efsa.europa.eu/fr/efsajournal/pub/4028
  3. Carr AC, Maggini S. Vitamin C and Immune Function. Nutrients. 2017;9(11):1211. Published 2017 Nov 3. doi:10.3390/nu9111211
  4. https://www.efsa.europa.eu/fr/efsajournal/pub/1815
  5. Tamura J, Kubota K, Murakami H, Sawamura M, Matsushima T, Tamura T, Saitoh T, Kurabayshi H, Naruse T. Immunomodulation by vitamin B12: augmentation of CD8+ T lymphocytes and natural killer (NK) cell activity in vitamin B12-deficient patients by methyl-B12 treatment. Clin Exp Immunol. 1999 Apr;116(1):28-32. doi: 10.1046/j.1365-2249.1999.00870.x. PMID: 10209501; PMCID: PMC1905232.
  6. https://www.efsa.europa.eu/fr/efsajournal/pub/1223
  7. Aranow C. Vitamin D and the immune system. J Investig Med. 2011;59(6):881-886. doi:10.2310/JIM.0b013e31821b8755
  8. https://www.efsa.europa.eu/en/efsajournal/pub/1468
  9. Rall LC, Meydani SN. Vitamin B6 and immune competence. Nutr Rev. 1993 Aug;51(8):217-25. doi: 10.1111/j.1753-4887.1993.tb03109.x. PMID: 8302491.
  10. https://www.efsa.europa.eu/en/efsajournal/pub/1759
  11. Dhur A, Galan P, Hercberg S. Folate status and the immune system. Prog Food Nutr Sci. 1991;15(1-2):43-60. PMID: 1887065.
  12. https://www.efsa.europa.eu/en/efsajournal/pub/3893
SharePinterest

Comments

You must be connected to your account to leave a comment
Be the first to review this article
Our selection of articles

Products which must be of interest

AHCC 500 mgAHCC 500 mg

The perfect supplement of AHCC®

83.00 €(101.05 US$)
+
Organic MycoComplexOrganic MycoComplex

Super-complex of 7 medicinal mushrooms – Shiitake, Chaga, Reishi, Maitake, Cordyceps, Polypore and Agaricus

38.00 €(46.26 US$)
+
Green Propolis 400 mgGreen Propolis 400 mg

Natural antibiotic with an incredible range of biological activities

47.00 €(57.22 US$)
+
Bacillus subtilisBacillus subtilis

Probiotic bacteria strain with confirmed immunostimulant capacity

16.00 €(19.48 US$)
+
Organic Defense MixOrganic Defense Mix

The most effective blend of essential oils for fighting infection

22.00 €(26.78 US$)
+
-5%
Organic Royal jelly 4 % 10-HDAOrganic Royal jelly 4 % 10-HDA

Mother Nature’s vitality gem - 100% organic

25.65 €27.00 €(31.23 US$)
+
Neem Extract 500 mgNeem Extract 500 mg

Azadirachta indica extract 10:1, antiseptic, antibacterial, antiviral, anti-inflammatory and detoxifying applications !

20.00 €(24.35 US$)
+
PP 40PP 40

40 mg rare and potent extracts of Pao Pereira, prolonged release

73.00 €(88.87 US$)
+
© 1997-2021 Supersmart.com® - All rights reserved
© 1997-2021 Supersmart.com®
All rights reserved
Nortonx
secure
Warning
ok