• Supports a healthy thyroid gland‡
  • Supports a healthy immune system‡

$24.00 or Original price was: $24.00.Current price is: $21.60. / month

(Subscriptions can be managed in your account and cancelled at any time without penalty.)

SKU 421 Categories ,


Tri-40™ utilizes glandular concentrates from porcine and Argentinian bovine (non-BSE and thyroxin free) sources, in addition to iodine from Atlantic sea kelp to provide support for the thyroid gland and support the immune system.‡



Warning:  If you are pregnant or lactating woman, have any health conditions, or are taking any medication, make sure to consult your healthcare provider prior to use.

‡ These statements have not been evaluated by the Food and Drug Administration.
These products are not intended to diagnose, treat, cure or prevent any disease.



One capsule daily.


90 Capsules


Choudhry H, Nasrullah M. Iodine consumption and cognitive performance: Confirmation of adequate consumption. Food Sci Nutr. 2018 Jun 1;6(6):1341-1351. doi: 10.1002/fsn3.694. Erratum in: Food Sci Nutr. 2021 Jan 19;9(2):1256. PMID: 30258574; PMCID: PMC6145226.

Chaker L, Bianco AC, Jonklaas J, Peeters RP. Hypothyroidism. Lancet. 2017 Sep 23;390(10101):1550-1562. doi: 10.1016/S0140-6736(17)30703-1. Epub 2017 Mar 20. PMID: 28336049; PMCID: PMC6619426.

Promoting Healthy Thyroid Function with Iodine. Published 2012. Biology, Medicine

Pearce EN. Iodine deficiency in children. Endocr Dev. 2014;26:130-8. doi: 10.1159/000363160. Epub 2014 Aug 29. PMID: 25231449.

Zimmermann MB, Jooste PL, Pandav CS. Iodine-deficiency disorders. Lancet. 2008 Oct 4;372(9645):1251-62. doi: 10.1016/S0140-6736(08)61005-3. PMID: 18676011.

Zimmermann MB. Iodine deficiency. Endocr Rev. 2009 Jun;30(4):376-408. doi: 10.1210/er.2009-0011. Epub 2009 May 21. PMID: 19460960.

Zimmermann MB. The role of iodine in human growth and development. Semin Cell Dev Biol. 2011 Aug;22(6):645-52. doi: 10.1016/j.semcdb.2011.07.009. Epub 2011 Jul 23. PMID: 21802524.

Patrick L. Iodine: deficiency and therapeutic considerations. Altern Med Rev. 2008 Jun;13(2):116-27. PMID: 18590348.