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Ideal for children or adults wishing merely to ‘top up’ a diet that may only sometimes be iodine sufficient.

90 Capsules :: 3 Months Supply



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Seagreens Iodine Lite+

Iodine contributes to:

  • The normal production of thyroid hormones and normal thyroid function
  • The normal growth of children
  • The maintenance of normal skin
  • Normal energy yielding metabolism
  • Normal cognitive function
  • Normal functioning of the nervous system
  • Ideal for Vegans who can be lacking in iodine

Seagreens® Iodine Lite+ Capsules

Iodine Lite+ is Seagreens’ new blend for children, or adults wishing merely to ‘top up’ a diet that may only sometimes be iodine sufficient.

They “would not exceed the recommended daily intake even if consumed by those with sufficient iodine” says researcher, Emily Combet. This is because the iodine is bound to protein ions and can be ‘unbound’ as needed, or excreted.

Associated research shows Seagreens® to be an effective prebiotic, which helps stabilize and prolong the absorption of its iodine. Iodine Lite+ contains four of Seagreens® NFS certified, organic wild seaweed species (and nothing else) providing a lower level of 150 micrograms of iodine per capsule than Seagreens Iodine+ within a well-documented balance of all the other nutrients.

The vegetable capsules slide open, so the content can be added to a juice, soup or smoothie.

Seagreens has published data on its award-winning research, the total composition of its seaweeds, and typical iodine levels across a range of native species.

What's in it

Iodine Lite+ Capsules contain pure finely milled Seagreens® native wild seaweeds Fucus vesiculosus, Ascophyllum nodosum, Palmaria palmata and Alaria esculenta whose composition and health benefits Seagreens has studied and documented for over two decades. Vegetable capsules. Nothing added or extracted. Non-allergenic.

What it does

Iodine contributes to the normal production of thyroid hormones, normal thyroid function, nervous system and cognitive function, the normal growth of childrn, normal energy-yielding metabolism, and the maintenance of normal skin. Plus each capsule contains natural vitamins such as B9 and B12, minerals such as magnesium, selenium and zinc - all the other nutrients the body needs for the effective transport and metabolism of iodine - and contributes a small balance of micronutrients to a normal daily diet. Independent thyroid iodine research on Seagreens® Ascophyllum was published in the British Journal of Nutrition in 2014.

How to use

For sufficiency in iodine, wherever there is a known deficiency, one capsule each morning (400mg or 0.014oz). The capsule may be emptied into any food or cold drink, simply by pulling apart. Iodine Lite+ has been developed specifically for children, or to 'top up' daily iodine intake. For a higher intake use Iodine+ Capsules. All Seagreens® nutrition products contain varying levels of natural iodine. The uptake of iodine in the body* has been shown to be approximately 1/3rd of intake, illustrated in the following table. Safe in permanent daily use for all ages.


British Isles and Nordic region. The best seaweed species are found in different locations. Seagreens has developed 5 food certified remote harvesting locations and production facilities in England, Iceland, Ireland, Norway and Scotland.

Iodine deficiency

Half the population and 76% of girls in the UK lack dietary iodine1; 80% of women are deficient in pregnancy, associated with congenital abnormalities and low intelligence from an early age in their offspring2. The WHO regards iodine insufficiency as the greatest cause of preventable brain damage in children worldwide.

More broadly, iodine contributes to normal thyroid hormone production and thyroid, nervous system and cognitive function, normal energy yielding metabolism, and the maintenance of normal skin.

Seaweed is the richest source of bioavailable iodine, yet one of the least available minerals in our agricultural soils. Unlike other food sources – eggs, dairy, meat, fish and shellfish - it is vegetable, with a comprehensive nutritional profile.

Certain species contain all the minerals and co-factors needed for the proper transport and metabolism of iodine, including iron, selenium, zinc, copper, and vitamins A, B2, B3, B6 and C. There is a plethora of iodine supplements, from common potassium iodide to liquid solutions, and tablets and capsules which incorporate various levels of seaweed or ‘kelp’. Seagreens® has distinguished itself over the past 20 years, pioneering the production of our native seaweeds for human nutrition, and conducting independent research on iodine and the thyroid, published in the British Journal of Nutrition.

There was no adverse effect on the thyroid, normalisation of TSH (thyroid stimulating hormone), and a known safe level of iodine uptake at about 33% of the total content3.

Seagreens® Iodine+ Capsules have over 10 years’ safe use among practitioners and consumers providing at least the dietary 250 micrograms per day (µg/day) recommended during pregnancy and lactation, within a safe WHO upper limit of 17µg/kg body weight or 1000µg/day2.

Iodine Lite+ is Seagreens’ new blend for children, or adults wishing merely to ‘top up’ a diet that may only sometimes be iodine sufficient.


1 Vanderpump MPJ, et al. The Lancet, Vol. 377, 9782:2007-2012, 2011.
2 Bath SE, et al. Environ Geochem Health, 37:619–629, 2015.
3 Combet E, et al. British Journal of Nutrition, 9:1-9, 2014.

Recommended daily intake:

Children should take one Iodine Lite+ tablet per day, or the contents in a juice, and move to Iodine+ at about 10 years of age.

Adults who wish merely to top up their daily diet with an Iodine Lite+ capsule rather than have a full 350 µg provided by Iodine+ should also take one capsule per day.

A pure, natural, assimilable source of Iodine

Iodine is one of the most important elements and a vital food for the thyroid gland, where most of our body's iodine is stored. The thyroid in turn regulates our hormone system, which controls all the key biological functions.

Thyroid hormones, with iodine as an essential ingredient, control normal growth and development, and many other functions including immunity and fertility. Thyroxine and triiodothyromine are necessary for metabolic rate, cellular metabolism, and the integrity of connective tissue.

During the first 3 months of pregnancy iodine is particularly important to the fetus for development of the nervous system.

In the UK, 76% of school aged girls and 66% of adult women are iodine deficient**

Seagreens® is authorised by the European Food Standards Agency to claim the following health benefits:

  • Iodine contributes to the normal production of thyroid hormones and normal thyroid function
  • Iodine contributes to the normal growth of children
  • Iodine contributes to normal cognitive function
  • Iodine contributes to normal energy-yielding metabolism
  • Iodine contributes to normal functioning of the nervous system
  • Iodine contributes to the maintenance of normal skin

** Download the Seaweed Health Foundation Iodine Fact Sheet  for more information and for references to the studies which revealed the above results.

Nutritional Profile - Seagreens® Iodine Lite+ Capsules

Iodine Lite+ Capsules (1 x 400mg capsule) provides:

Amino acids:

Alanine 0.61 mg, Arginine 0.15 mg, Asparagine 0.20 mg, Aspartic acid 0.19 mg, Cystine and Cysteine* 0.17 mg, Cystathionine 0.20 mg, Glutamic acid 0.92 mg, Glutamine 0.34 mg, Glycine 0.16 mg, Histidine 0.14 mg, Homocysteine 0.2 mg, Hydroxyproline 0.2 mg, Isoleucine 0.15 mg, Leucine 0.17 mg, Lysine 0.16 mg, Methionine 0.17 mg, 1- Methylhistidine 0.2 mg, 3-Methylhistidine 0.2 mg, Ornithine 0.25 mg, Phenylalanine 0.19 mg,, Phosphoserene 1.83 mg, Proline 1.47 mg, Sarcosine 0.2 mg, Serine 0.16 mg, Taurine 0.2 mg, Threonine 0.17 mg, Tryptophan 0.17 mg, Tyrosine 0.15 g, Valine 0.16 mg. *Cysteine is a non-essential methionine amino acid derivative formed in collaboration with vitamins B6 and B12 whereas cystine, a compound formed when two amino acids form a disulfide bond, is a more stable semi-essential amino acid. Both are important in protein synthesis, detoxification and metabolism and cystine is a substrate for the cystine-glutamate cell transport by which it is readily broken down to cysteine in the cell. Normal human hair and skin contains 10-14% cystine.

Antioxidant capacity - principal antioxidant nutrients:

Alpha-linolenic acid (ALA) 122.74 µg, Calcium 2,620 µg, Copper 1.36 µg, Magnesium 2,046 µg,, Manganese (part of the antioxidant enzyme Superoxide dismutase) 129.24 µg, Polyphenols (gallic acid equivalent) 5,081.46 µg, Polyphenols (tannins) 6,064.2 µg, Potassium 27,070 µg, Selenium 0.12 µg, Vitamin A (carotenoid precursors) 0.95 µg, Vitamin C 30.66 µg, Vitamin E (alpha-tocopherol) 9.79 µg, Zinc 9.94 µg.


Glycine Betaine trace, Gamma Amino Butyric Acid Betaine trace, Delta Amino Valeric Acid Betaine trace, TML (Laminine) trace, L-Carnitine trace, Trigonelline trace.


185.88 mg of which total dietary fibre is 163.77 mg including non-starch polysaccharides Algin, Fucose, Fucoidan, Mannitol, Methylpentosans, Laminarin, Mannuronic acid and Chlorophyll (antioxidant). Soluble fibre is approximately 20% of total dietary fibre, insoluble 80%.


Lipase 7.38 units, Protease 65.83 units, Uronic acid 1.69 units.

Essential fatty acids:

Alpha amino-n-butyric acid 2.12 µg, Alpha-linolenic acid (ALA) 122.74 µg, Beta aminoisobutyric acid 2.12 µg, Docosadienoic acid 5.07 µg, Docosapentaenoic (DPA) 5.96 µg, Docosahexaenoic acid (DHA) 2.24 µg, Eicosapentenoic acid (EPA) 1,068.57 µg, EPA and DHA Omega-3 1,070.81 µg, Gamma amino-n-butyric acid 2.12 µg, Oleic acid 1,184.08 µg, Omega-3 1,306.43 µg, Omega-6 829 µg*, Omega 9 1,602.44 µg, Monounsaturated fatty acids 1,776 µg, Polyunsaturated fatty acids 2,136 µg, Saturated fatty acids 1868 µg, Trans fatty acids (mono- and poly-unsaturates) 0.62 µg. *Omega 3:6 ratio 157.6%.


Calcium (antioxidant) 2.62 mg, Magnesium (antioxidant) 2.05 mg, Nitrogen 9.89 mg, Phosphorus 1.41 mg, Potassium (antioxidant) 27.07 mg, Sodium 22.87 mg, Sulphur 22.86 mg.


5,081.46 µg (gallic acid equivalent).


61.37 mg.

Trace elements:

Antimony 0.01 µg, Barium 2.89 µg, Beryllium trace, Bismuth trace, Boron 75.03 µg, Bromine 49.12 µg, Cerium 0.24 µg, Caesium trace, Chromium 0.05 µg, Cobalt 0.06 µg, Copper 1.36 µg, Dysprosium 0.01 µg, Erbium 0.01 µg, Europium 3.44 µg, Flouride (acid soluble) 2.62 µg, Gadolinium 0.02 µg, Gallium 0.01 µg, Germanium trace, Gold 0.03 µg, Hafnium trace, Holmium trace, Iodine 150 µg*, Iridium trace, Iron 119.45 µg, Lanthanum 0.09 µg, Lithium 0.21 µg, Lutetium trace, Manganese 129.24 µg, Molybdenum 0.34 µg, Neodymium 0.07 µg, Nickel 0.11 µg, Niobium trace, Osmium trace, Palladium 0.01 µg, Platinum trace, Praeseodymium 0.02 µg, Rhenium 0.01 µg, Rubidium 13.65 µg, Ruthenium trace, Samarium 0.01 µg, Scandium 0.01 µg, Selenium 0.12 µg, Silicon** 76.66 µg, Silver 0.07 µg, Strontium 70.64 µg, Tantalum trace, Tellurium 0.01µg, Terbium trace, Thallium trace, Thorium trace, Thuliam trace, Tin trace, Titanium trace, Tungsten trace, Uranium trace, Vanadium 8.69 µg, Ytterbium 0.01 µg, Yttrium 0.07 µg, Zinc 9.94 µg, Zirconium 0.02 µg.


A (carotenoids) 0.95 µg, B1 (thiamin) 0.19 µg, B2 (riboflavin) 0.25 µg, B3 (niacin or vitamin PP) 13.57 µg, B5 (pantothenic acid and calcium pantothenate) 0.002 µg, B6 (pyridoxine) 0.12 µg, B9 (folate) 1.43 µg, B12 (cobalamin) 0.06 µg, C 30.66 µg, E (alpha-tocopherol) with all the isomers of wheat germ 9.79 µg, D2 0.001 µg, D3 trace, H (biotin or vitamin B8) 0.07 µg, K (K3 phytomenadione, K1 phylloquinone, K2 menaquinone-4 and menaquinone-7) 0.69 µg.


Iodine levels in Seagreens® nutrition products

Uptake of iodine in the body has been shown to be approximately 1/3rd of intake. Figures are average iodine levels in micrograms over two decades harvesting Seagreens®. Iodine levels fluctuate according to natural variances in species and individual uptake.

Iodine levels in Seagreens® nutrition products
Product nameIntake (daily use or portion)Uptake
Iodine Lite+ Capsules x 1 (400g)150µg50µg

Note: 1g (gram) = 1000mg (milligram) = 1,000,000µg (microgram)

Nutritional data reproduced by permission of the Copyright holder, Seagreens Ltd, Great Britain.