About Us


Seagreens® is a British company and Europe’s leading Organic seaweed food brand. It was founded 1997 by an Englishman, Simon B. Ranger who determined “to make it easy to get at least a gram of the best seaweed into our daily diet”.

Among Norway’s remote Arctic islands and more recently in the British Isles, Seagreens developed proprietary methods to select, harvest and process the most nutritious wild species to retain very high nutritional values (Patent Pending GB1205419.3) and comply with international food, health and safety standards.

In the United States, Seagreens is distributed by International Nutrition, a Maryland based company which has been responding to special dietary needs for over XX years. Together we aim to deliver the corporate ethos “to deliver goodness and value in all our relationships”.


Seagreens’ ground-breaking research in food and health includes the world’s first government-led project to incorporate natural, whole food seaweed in manufactured foods in place of sodium chloride (salt). An additional award-winning project on obesity was published in the peer-reviewed Journal of Appetite in 2012.

A series of weight management studies using Seagreens’ Human Food SeaweedTM in weight management demonstrated reduced calorie intake with no loss of nutrient uptake. There was also a slower release of sugars into the blood, which promises to reduce the glycaemic index of food as well as help consumers feel fuller for longer.

To further research in the public interest, Ranger has set up the Seaweed Health Foundation for standards, research and education. An inaugural conference was held at the Natural History Museum in London in 2012 followed by a public exhibition at the Royal Botanic Gardens in Edinburgh in 2013. It is the first initiative of its kind in the world.

Studies involving 3 British Universities at Sheffield, Glasgow and Newcastle have shown that all Seagreens species are rich sources of nutrients which could be more effective free radical scavengers than green teas. Seagreens’ antioxidant capacity survives the initial stages of digestion, indicating that a high concentration of antioxidants will be released within the gut lumen to provide protection from oxidative damage.

Current projects focus on Seagreens’ proven nutritional integrity, prebiotic support for beneficial bacteria in the lower intestine, iodine supplementation, and the replacement of unnatural food ingredients. Iodine contributes to normal thyroid, nervous system and cognitive function.


Above all, Seagreens products ensure a comprehensive balance of nutrients in the everyday diet. Especially, they provide a sustainable, natural source of all the micronutrients and minerals depleted in our soils and imbalanced in many manufactured foods. Unchanged since the dawn of the vegetable kingdom, Seagreens are our nutritional link with our own physical origins.

Defeated in the Presidential election of 1801 in favor of Thomas Jefferson, John Adams returned to the solace of his homestead, wife and family at Braintree, Massachusetts. “I found about a hundred loads of seaweed in my barnyard,” he wrote in his dairy. “I thought I had made a good exchange, of honors and virtues for manure.”


At the inauguration of Seagreens in the late 1990s, Simon B. Ranger, CEO of International Partnership, vocalized his vision of Seagreens as “an international brand of integrity to deliver goodness and value in all our relationships”, and went on to say “we want everyone to benefit from a teaspoonful of Seagreens in their daily diet so as to achieve a dietary foundation for today’s nutritionally challenged population.”


Seagreens will continue to research and develop sustainable products with a message for consumers, health care practitioners, other manufacturers in the health and food sectors, and with application elsewhere in the food chain.  Each of the products promotes balance in everyday life and makes it easier than ever to include the most nutritious seaweed in an ordinary daily diet.  The company fosters educated partnerships in all aspects of its business to further these aims.


Seagreens contributes more than 10% of its manufacturing output to those less fortunate.  These include low-income consumers in healthcare; homeless people in Scotland; an outreach clinic in a deprived urban setting in England; children affected by radiation in the Ukraine;and malnourished women with children in and around Moscow.  The company does not inflate its prices to pay for these activities.

  • Funding and Seagreens products to The Children’s Clinic at The Dolphin House Trust in the UK.
  • Seagreens to children in the Ukraine whose families were affected by radiation from Chernobyl, through UK charity The Dandelion Trust.
  • Seagreens Food Capsules to 3000 malnourished women with children in and around Moscow through an outreach of the Russian Orthodox church.


Seagreens are also keen to obtain research assistance and sponsorship especially in autistic spectrum disorders, hyperactivity, inflammatory disorders, neurological degenerative disorders, metabolic disorders and other areas where there is already good research and anecdotal evidence for the efficacy of Seagreens products.


If my patients are taking Seagreens they are getting the nutrients they might have been getting in their normal food 50 years ago, such as the trace minerals, and that makes a huge difference. It ...