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The Defense We Deserve

The immune system is a body-wide network that relies on targeted nutrition for optimal function. It’s responsible for keeping us healthy, and it’s essential for helping us live life to the fullest.

Order from a Practitioner

Weak vs. Strong Immune System

Some of the many lifestyle factors that impact the way the body responds to challenges.

Immune System Supplements from Standard Process® and MediHerb® Can Help Support a Strong Immune System

Immuplex® 

Immuplex® is a daily supplement supporting a healthy immune system response through a blend of essential micronutrients & minerals. It also contains specialized extracts.*

Echinacea Premium

Echinacea Premium combines the roots of Echinacea angustifolia and Echinacea purpurea to enhance healthy immune system function.*

SP Children’s® Immune

SP Children’s® Immune is a chewable supplement for kids ages 4 and older that delivers key nutrients for proper immune system functioning and development.*

Vitamin C, Vitamin D, and Zinc: Where Immune Systems Get Their StrengthImportant for all life stages, including childhood10



Vitamin C helps support immune system defense by enhancing innate immune pathways. It also supports adaptive immunity through differentiation and proliferation of B- and T- lymphocytes.11 

Vitamin D assists immune function by serving as a regulator while promoting phagocytosis and superoxide synthesis.10 Low vitamin D status has been identified as a risk factor for compromised immune function and may contribute to the chances of a poor immune response to environmental challenges.12,13 

Zinc plays a role in immune responses, and adequate status helps the body during immune system challenges.14 It also assists in immune cell function.15-20 It’s especially important for children, where adequate status helps the body during immune system challenges.14

1. Milani C, Duranti S, Bottacini F, Casey E, Turroni F, Mahony J, et al. MMBR. 2017;81(4):e00036-17. doi: 10.1128/MMBR.00036-17. 

2. Underwood MA, Gaerlan S, De Leoz MLA, Dimapasoc L, Kalanetra KM, Lemay DG, et al. 2015;78(6):670.

 3. Elison E, Vigsnaes LK, Rindom Krogsgaard L, Rasmussen J, Sorensen N, McConnell B, et al. Br J Nutr. 2016;116(8):1356-68. Epub 2016/10/22. doi: 10.1017/S0007114516003354. 

4. Iribarren C, Törnblom H, Aziz I, Magnusson MK, Sundin J, Vigsnæs LK, et al. 2019;156(6):S-242. doi: 10.1016/S0016-5085(19)37409-8. 

5. Elison E, Vigsnaes LK, Rindom Krogsgaard L, Rasmussen J, Sorensen N, McConnell B, et al. 2016;116(8):1356-68. Epub 2016/10/22. doi: 10.1017/S0007114516003354. 

6. Bai Y, Tao J, Zhou J, Fan Q, Liu M, Hu Y, et al. 2018;3(6):e00206-18. doi: 10.1128/ mSystems.00206-18. 

7. Sela DA, Mills DA. 2010;18(7):298-307. Epub 04/19. doi: 10.1016/j.tim.2010.03.008. 

8. Matsuki T, Yahagi K, Mori H, Matsumoto H, Hara T, Tajima S, et al. 2016;7:11939-. doi: 10.1038/ ncomms11939. 

9. Asakuma S, Hatakeyama E, Urashima T, Yoshida E, Katayama T, Yamamoto K, et al. 2011;286(40):34583-92. Epub 08/09. doi: 10.1074/jbc.M111.248138.

10. Calder PC. Proc Nutr Soc. 2013 Aug;72(3):299-309. doi: 10.1017/S0029665113001286.

 11. Carr AC, Maggini S. 2017;9(11):1211. doi: 10.3390/nu9111211. 

12. Esposito S, Lelii M. 2015;15(1):487. doi: 10.1186/s12879-015-1196-1. 

13. Wayse V, Yousafzai A, Mogale K, Filteau S. 2004;58(4):563-7. Epub 2004/03/26. doi: 10.1038/ sj.ejcn.1601845. 

14. Bhatnagar S, Natchu UCM. 2004;71(11):991-5. doi: 10.1007/BF02828114.

 15. Shankar AH, Prasad AS. 1998;68(2 Suppl):447s-63s. Epub 1998/08/13. doi: 10.1093/ ajcn 68.2.447S. 

16. Rink L, Gabriel P. 2000;59(4):541-52. Epub 2000/01/11. doi: 10.1017 s0029665100000781. 

17. Gao H, Dai W, Zhao L, Min J, Wang F. 2018;2018:6872621. Epub 2019/01/10. doi: 10.1155/2018/6872621. 

18. Maywald M, Wessels I, Rink L. 2017;18(10). Epub 2017/10/25. doi: 10.3390/ijms18102222. 

19. Wessels I, Maywald M, Rink L. 2017;9(12). Epub 2017/12/01. doi: 10.3390/nu9121286. 

20. Maggini S, Pierre A, Calder PC. 2018;10(10):1531. doi: 10.3390/nu10101531.