Alginate, Alginate de Sodium, Alginates, Alginato, Algine, Algue Géante, Ascophylle Noueuse, Ascophyllum nodosum, Goémon Noir, Laminaire Digitée, Laminaria digitata, Macrocystis pyrifera, Pacific Kelp, Sea Whistle, Sodium Alginate, Varech Palmé, Varech Porte-Poire.<br/><br/>


Overview Information

Algin is a chemical taken from brown seaweeds. It is used to make medicine.

Algin is used to lower cholesterol levels and to reduce the amount of heavy chemicals including strontium, barium, tin, cadmium, manganese, zinc, and mercury that are taken up by the body. Algin is also used for the prevention and treatment of high blood pressure.

In foods, algin is used in candy, gelatins, puddings, condiments, relishes, processed vegetables, fish products, and imitation dairy products.

In manufacturing, algin is used as a binding agent in tablets, as a binding and soothing agent in throat lozenges, and as a film in peel-off facial masks.

How does it work?

Algin forms a gel that may lower cholesterol levels by reducing the amount of cholesterol entering the body.


Uses & Effectiveness?

Insufficient Evidence for

  • Lowering cholesterol.
  • Lowering blood pressure.
  • Decreasing the amount of the certain heavy chemicals taken up (absorption) by the body. These chemicals include strontium, barium, tin, cadmium, manganese, and zinc.
  • Other conditions.
More evidence is needed to rate the effectiveness of algin for these uses.

Side Effects

Side Effects & Safety

Algin seems to be LIKELY SAFE when used in food amounts. However, the safety of larger medicinal amounts is not known.

Special Precautions & Warnings:

Pregnancy and breast-feeding: Dried algin is LIKELY UNSAFE when inserted into the cervix to induce labor, as it has been linked with serious adverse effects. Not enough is known about the use of algin during pregnancy when taken by mouth or when used in any form during breast-feeding. Stay on the safe side and avoid use.



Moderate Interaction

Be cautious with this combination

  • Medications taken by mouth (Oral drugs) interacts with ALGIN

    Algin is a thick gel. Algin can stick to medications in the stomach and intestines. Taking algin at the same time as medications that you take by mouth can decrease how much medication your body absorbs, and decrease the effectiveness of your medication. To prevent this interaction, take algin at least one hour after medications you take by mouth.



The appropriate dose of algin depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for algin. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.

View References


  • Calafiore R, Calcinaro F, Basta G, et al. A method for the massive separation of highly purified, adult porcine islets of Langerhans. Metabolism 1990;39(2):175-181. View abstract.
  • Petrov AP, Molodtsov NV. [Effect of acid polysaccharides on the corticosteroid biosynthesis]. Probl Endokrinol (Mosk) 1978;24(3):99-103. View abstract.
  • Rubin B. Laminaria digitata: a checkered career. Econ Bot 1977;31(1):66-71. View abstract.
  • Stevens RA, Levin RE. Viscometric assay of bacterial alginase. Appl Environ Microbiol 1976;31(6):896-899. View abstract.
  • von Riesen VL. Digestion of algin by Pseudomonas maltophilia and Pseudomonas putida. Appl Environ Microbiol 1980;39(1):92-96. View abstract.
  • Hou X, Yan X, Chai C. Chemical species of iodine in some seaweeds. II. Iodine-bound biological macromolecules. J Radioanalyt Nuclear Chem. 2000;245(3):461-467.
  • Leid JG, Willson CJ, Shirtliff ME, Hassett DJ, Parsek MR, Jeffers AK. The exopolysaccharide alginate protects Pseudomonas aeruginosa biofilm bacteria from IFN-gamma-mediated macrophage killing. J Immunol. 2005;175(11):7512-7518. View abstract.
  • Skjak-Bræk G. Alginates: biosynthesis and some structure-function relationships relevant to biomedical and biotechnological applications. Biochem Soc Trans 1992;20(1):27-33. View abstract.
  • US Department of Health and Human Services, Public Health Service. Agency for Toxic Substances and Disease Registry. Toxicological profile for strontium. April 2004. Available at: (Accessed 8 August 2006).

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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

This copyrighted material is provided by Natural Medicines Comprehensive Database Consumer Version. Information from this source is evidence-based and objective, and without commercial influence. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version.
© Therapeutic Research Faculty 2018.