Seagreens® Information Service  0845-0640040 / +44-1444-400403

Practitioners listed in our database are likely to have a good understanding of Seagreens nutrition products and their uses.

Please click here to seach the list and if you would like to discuss any matter with Seagreens please contact Seagreens Information Service.



Thyroid health 
Jules Chandler Dip CNM, mBANT, CHNC, MTI Nutritional Therapist - Bristol centrral, Keynsham, and Knowle.
Jules is a registered Nutritional Therapist providing evidence-based nutritional therapy with a naturopathic, person-centred approach.
She is a member of BANT, CHNC, MTI, The World Health Heroes and is a Clinical Supervisor at The College of Naturopathic Medicine and facilitates free monthly thyroid support groups and holds quarterly talks on ‘all things thyroid’. Appointments and enquiries Tel 07921 617623

So…what is a thyroid condition? 
Thyroid dysfunction, in my humble opinion, is the most undertreated condition in the UK at this time. Hypothyroid (underactive), hyperthyroid (overactive), Hashimoto’s (autoimmune), Graves’s Disease (overactive), toxic nodules, viral thyrotoxicosis, postpartum thyroid, the list of thyroid diseases is endless, but the symptoms are similar with most types, whatever the causation.

Symptoms will manifest in the body either metabolising too quickly or too slowly. An underactive client will typically present with weight gain, constipation, tiredness and hair loss and the doctors seem to be at a loss when symptoms other than this present in clinic; e.g. there are slim underactive thyroiders, there are overweight overactive thyroiders and vice versa. There are thyroid clients who can function mentally extremely well and there are others existing in a constant battle sea of brain fog or debilitating anxiety. For some, muscle pain is an issue, whilst for others, there is not even a hint of post-exercise malaise or lack of recovery. 

What is the thyroid? 
If the body is the orchestra then the thyroid is definitely the conductor, keeping pace and noting when things need to slow down or pick up speed. Thyroid hormones control many of our major cellular metabolic processes via the synthesis, storage and release of thyroid hormones (T4, T3, T2, T1, T0 and calcitonin). Is it any wonder that when we see a thyroid client who is struggling, the symptoms lay within all of the systems; brain fog, muscle pain or weakness, constipation, fatigue, the list is endless.

The synthesis of a thyroid hormone begins when the hypothalamus responds to sensory input from the environment (e.g. the modern tiger aka 6012 emails!). The pituitary gland is prompted to release thyroid stimulating hormone (TSH) in order to synthesise thyroxine in the thyroid gland. Then, the biochemical magic really begins…. Wiith the help of thyroid peroxidase enzyme (TPO), tyrosine is joined by an iodine atom, creating a compound, known as monoiodotyrosine (MIT). It continues to add further iodine atoms together until reaching four in total thus becoming thyroxine (also known as T4!).

The thyroid gland will release 80% as t4, 16% as t3 and the remainder as t2 and t1 hormones (Peatfield, 2006). T4 is a storage hormone travelling on its merry little way via the bloodstream to peripheral conversion sites, mainly in the liver, where an iodine atom is cleaved by a selenoenzyme to become T3 (triiodotyrosine). T3, the true hormone, four times more potent than T4, then enters every cell in the body enabling every wonderful metabolic process that most of us take for granted. 

Where does it all go wrong? 
I see more autoimmune cases than anything else in clinic. A classic case of gut permeability and the immune system going totally haywire, at (Campbell, 2014) tacking the TPO or TSI receptors and creating havoc. Add a ton of stress as a driver, a predisposition to autoimmunity and some foods that give our client little nutrient density and it’s a recipe for disaster. (Vanderpump, M 2011).

There is much success in implementing the 4R protocol and I have seen astonishing results where antibodies hit the floor after just a few months with gut healing work. This simple protocol involves a four-stage gut healing process; REMOVE foods, pathogens, bacteria or parasites that may be damaging the gut, REPLACE any digestive components that may be missing; stomach acid, digestive enzymes, REPOPULATE with probiotics and REPAIR with specific supplements and foods to rebuild intestinal lining. (Rapin, Wiernsperger, 2010).

Another common puzzle is when client’s labs present with a high T4 and low T3 - a suggestion that there is a lack of conversion between T4 and T3. Many times, there is an oestrogen or cortisol dominance, preventing the T3 reaching the cell receptors. Lifestyle management and stress reduction can help hugely and often there is insufficient nutrient density and a lack of nutrient co-factors to achieve conversion so its back again to the classic 4R. A polymorphism of the D102 gene may be a factor, disabling the client’s ability to convert Levothyroxine to T3 resulting in a high T4 and low T3 (Wartofsky L, 2013). 

Reverse T3 can be an issue for some people with extreme stress. The body will not accept and convert T4 so easily in times of challenge and in this case, the T4 will convert to reverse T3 thus showing classic hypothyroid symptoms with euthyroid lab work.

Then, there are those without a thyroid, like myself. Clients who have had Graves’s disease and a total thyroidectomy, atrophied thyroids; reliant on levothyroxine, the 1960’s one-size-fits-all wonder drug meant to replace endogenous T4. For many people, it works and others have had to find ways around it. Get the permeable gut tight, efficient, ‘ship shape and Bristol fashion’ as we say here in the South West! Reducing any stress load is next, hyped adrenals are not good with a dysfunctional thyroid function. They are best buddies and bounce off each other, altruistically helping each other out in times of need yet compromising and damaging themselves in the process. Adrenal recovery is key here (Seck-Gassama, 2000) alongside optimisation of conversion of the synthetic T4 to T3 with selenium and zinc.

If you still have a thyroid, I believe you’re in with more of a chance, encouraging it to make its own endogenous thyroxine again. Making sure the gut is tight is still number one on the list as nutrient density is essential, particularly tyrosine (Palinkas, Reedy, Smith, 2007). The most bioavailable source comes from fermented kefir milk. Phenylalanine is useful as a pre-cursor to tyrosine and can be found in avocado, banana, brown rice, cheese, eggs, lentils, meat, nuts, fish and soy beans. 

Controversially, iodine is number two on the list. If a client is deficient in this, they will not produce enough T4 or T3 (Hye Rim Chung, 2014). When there isn’t enough iodine in the body, the thyroid will swell in order to trap any spare iodine floating about the place resulting in a goitre. This does not mean that each goitre is due to there not being enough iodine. Remember there are lots of reasons why a thyroid creates havoc. Placing an iodine supplement into your client’s eager hands is not always the 
best idea.

It needs to be done in a certain way; too much or the wrong type of iodine can create just as much havoc as too little. Food sources should still be moderated and can include seafood, sea salt and sea vegetables.

The UK NHS range for the TSH (thyroid stimulating hormone) testing is extremely broad (0.4-4.6). Many clients present as euthyroid with bloodwork presenting as 4.6 and there is no further NHS testing of T4 or T3 unless the TSH is out of range. Therefore, private testing is easily available and thoroughly encouraged. I hope this article has helped a little with the complexity of thyroid conditions and that you have come to believe that whatever a client’s symptoms, a thyroid disease is rarely a diseased thyroid. 

• Campbell, (2014) ‘Autoimmunity and the Gut’, Dis. 2014; 2014: 152428. Published online 2014 May 13. doi: 10.1155/2014/152428, PMCID: PMC4036413, The Wellness Center, 23144 Emerson Way, Land O Lakes, FL 34639, USA. Available at:
• Hye Rim Chung, (2014) ‘Iodine and Thyroid Function’. Ann Pediatr Endocrinol Metab. 2014 Mar; 19(1): 8–12. Published online 2014 Mar 31. doi: 10.6065/apem.2014.19.1.8 PMCID: PMC4049553 PMID: 24926457. Department of Pediatrics, Seoul National University Bundang Hospital, Seongnam, Korea. Address for correspondence: Hye Rim Chung, MD. Department of Pediatrics, Seoul National University Bundang Hospital, 82 Gumi-ro 173 beon-gil, Bundang-gu, Seongnam 463-707, Korea. Tel: +82-31-787-7292, Fax: +82-31-787-4054. Available at: 
• Palinkas LA1, Reedy KR, Smith M, (2007) ‘Psychoneuroendocrine effects of combined thyroxine and triiodothyronine versus tyrosine during prolonged Antarctic residence.’ International Journal of Circumpolar Health, 66(5):401-17. Available at: 
• Peatfield (2006) Your Thyroid and How to Keep it Healthy: The Great Thyroid Scandal and How to Survive It, 2nd Edition, London, Hammersmith Press Limited. 
• Rapin, Wiernsperger (2010) ‘Possible Links between Intestinal Permeablity and Food Processing: A Potential Therapeutic Niche for Glutamine’ Clinics (Sao Paulo). 2010 Jun; 65(6): 635–643, doi: 10.1590/S1807-59322010000600012, PMCID: PMC2898551. Available at: 
• Seck-Gassama, (2000) ‘Serum cortisol level variations in thyroid diseases’. Dakar Med 2000;45(1):30-3, Seck-Gassama, Ndoye O, Mbodj M, Akala A, Cisse F, Niang M, Ndoye R. Laboratoire de Biophysique et Médecine Nucléaire-Faculté de Médecine-Université Cheikh Anta Diop de Dakar-Sénégal. 
• Vanderpump, M (2011), ‘The epidemiology of thyroid disease’. Oxford Journals, Medicine & Health , British Medical Bulletin, Volume 99, Issue 1, Pp. 39-51, Department of Endocrinology, Royal Free Hampstead NHS Trust, Pond Street, London NW3 2QG, UK. Available at: 
• Wartofsky L (2013), ‘Combination L-T3 and L-T4 therapy for hypothyroidism’. Current Opinion in Endocrinology, Diabetes and Obesity. Oct;20(5):460-6. doi: 10.1097/ Department of Medicine, Washington Hospital Center, Georgetown University, Washington, District of Columbia, USA. Available at: 

Seagreens®: Independent research demonstrates superior performance of Seagreens iodine in nutrition
Independent research at Glasgow University, published in the British Journal of Nutrition (2014) addressed the different behaviour of Seagreens Ascophyllum (~700mg/kg iodine) in the body compared to potassium iodide, a widely used iodine supplement. The study found that potassium iodide is highly bioavailable and quickly excreted, whereas the Seagreens Ascophyllum is less bioavailable and remains in the body for longer, being excreted in higher amounts from the body over a prolonged period. The body uses what it needs and gets rid of the rest. Approximately 33% of the natural seaweed iodone was absorbed in iodine deficient female trial subjects achieving iodine sufficiency with no adverse effect on the thyroid. Click here for more about Seagreens nutrition research.
Combet et al., 2014. Low level seaweed supplementation improves iodine status in iodine-insufficient women. British Journal of Nutrition. View or download this paper.

View or download Seagreens® booklet 'Iodine sufficiency from nutritious food seaweed'.


Practitioners trained in the GAPS diet can be found via the GAPS Training website.

Please click here for an introductory video by Dr Natasha Campbell-McBride.



These orgnisations may be able to help you locate a qualified nutritional therapist or related clinic, or provide training to become a practitioner.
Click at the top of the page for our list of qualified practitioners who are familiar with the application and use of Seagreens® nutrition products.

College of Naturopathic Medicine - colleges throughout the UK and overseas
1 Bullrushes Farm, Coombe Hill Road, East Grinstead, West Sussex RH19 4LZ
+44 (0)1342 410505

Naturopathic Nutrition Association
2 Uffcott Farm, Uffcott, Wiltshire SN4 9MB
01908 616543

British Association of Nutritional Therapists
27 Old Gloucester Street, London WC1N 3XX
01425 462532