Ingredient Research
L-Tyrosine
L-Tyrosine
Tyrosine use in summer was associated with no change in mood and a 30% decline in TSH, while in winter there was a 47% improvement in mood and TSH decreased by 28%. [...] Administration of tyrosine leads to a significant reduction in serum TSH and improvement in mood in winter compared with placebo.
Read the Abstract
Zhihua W, Jinghua L, Zhiming W, Lingyan X, Yi Z, Yingjie C, Jun S, and Zhongming L. Neural Regen Res. 2012 Jun 25; 7(18): 1413–1419.
Read the AbstractSarne D. Endotext. 2016 Sep 27.
Read the AbstractGreen WL. J Clin Invest. 1971 Dec; 50(12): 2474–2484.
Read the AbstractKostoglou-Athanassiou I, Ntalles K. Hippokratia. 2010 Apr-Jun; 14(2): 82–87.
Read the AbstractKhaliq W, Andreis DT, Kleyman A, Gräler M, and Singer M. Intensive Care Med Exp. 2015 Dec; 3(Suppl 1): A686.
Read the AbstractBladderwrack
Bladderwrack
Seaweed ingestion increased I/C concentrations [...] and serum TSH. [...] Seven weeks of [...] seaweed supplementation was associated with a small but statistically significant increase in TSH.
Read the Abstract
Zava TT, Zava DT. Thyroid Res. 2011; 4: 14.
Read the AbstractCatarino MD, Silva AMS, Cardoso SM. Mar Drugs. 2018 Aug; 16(8): 249.
Read the AbstractAquaron R, Delange F, Marchal P, Lognoné V, Ninane L. Cell Mol Biol (Noisy-le-grand). 2002 Jul;48(5):563-9.
Read the AbstractShokri Z, Khoshbin M, Koohpayeh A, Abbasi N, Bahmani F, Rafieian-Kopaei M, Beyranvand F. International Journal of Green Pharmacy. July-Sep 2018 (Suppl). 12 (3) | S474.
Read the AbstractKelp
Kelp
In the present study, we tested a commercially available encapsulated edible [kelp] for its acceptability to consumers and iodine bioavailability and investigated the impact of a 2-week daily seaweed supplementation on iodine concentrations and thyroid function. [...] The concentrations of thyroid-stimulating hormone increased. [...] The seaweed was palatable and acceptable to consumers as a whole food or as a food ingredient and effective as a source of iodine in an iodine-insufficient population.
Read the Abstract
Takeuchi T, Kamasaki H, Hotsubo T, Tsutsumi H. Clin Pediatr Endocrinol. 2011 Jul; 20(3): 51–55.
Read the AbstractClark CD, Bassett B, Burge MR. Endocr Pract. 2003 Sep-Oct;9(5):363-9.
Read the AbstractKey TJ, Thorogood M, Keenan J, Long A. Journal of Human Nutrition and Dietetics, 5: 323-326.
Read the AbstractTurmeric
Turmeric
Curcumin is a potent antioxidant that works through several mechanisms. The aim of the present study was to demonstrate the hormonal, histological, and ultrastructural changes occurred in the thyroid gland [...] and study the possible protective effect of curcumin on [these] effects. [...] [The study found that] curcumin was protective against toxic effects [to the thyroid gland].
Read the Abstract
Jawa A, Jawad A, Riaz SH, Assir MZ, Chaudhary AW, Zakria M, Akram J. Indian J Endocrinol Metab. 2015 May-Jun;19(3):347-50. doi: 10.4103/2230-8210.152768.
Read the AbstractDeshpande UR, Joseph LJ, Patwardhan UN, Samuel AM. Indian J Exp Biol. 2002 Jun;40(6):735-8.
Read the AbstractMishra P, Paital B, Jena S, Swain SS, Kumar S, Yadav MK, Chainy GBN, Samanta L. Sci Rep. 2019 May 15;9(1):7408. doi: 10.1038/s41598-019-43320-5.
Read the AbstractPapiez MA, Kaja M, Gebarowska A. Folia Histochem Cytobiol. 2008;46(2):205-11. doi: 10.2478/v10042-008-0031-6.
Read the AbstractBioperine®
Bioperine®
Piperine supplementation [...] improved the plasma levels of [T3 and T4], and significantly reduced [TSH] to near normal levels. [...] The data presented here provide evidence that piperine possesses thyrogenic activity.
Read the Abstract
Shoba G, Joy D, Joseph T, Majeed M, Rajendran R, Srinivas PS. Planta Med. 1998 May;64(4):353-6.
Read the AbstractJäger R, Lowery RP, Calvanese AV, Joy JM, Purpura M, Wilson JM. Nutr J. 2014; 13: 11.
Read the AbstractHewlings SJ, Kalman DS. Foods. 2017 Oct 22;6(10). pii: E92. doi: 10.3390/foods6100092.
Read the AbstractHewlings SJ, Kalman DS. Foods. 2017 Oct; 6(10): 92.
Read the AbstractPrasad S, Tyagi KA, Aggarwal BB. Cancer Res Treat. 2014 Jan; 46(1): 2–18.
Read the Abstract