Spirulina: Learn the Health Benefits of Spirulina

Spirulina: Learn the Health Benefits of Spirulina
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What is Spirulina?

Spirulina is a microscopic blue-green algae that flourishes in warm alkaline water and warm climates. Most spirulina consumed in the U.S. is grown in a laboratory. There are many different species but the most popular are spirulina platensis (grown in California) and spirulina maxima (grown in Mexico). Spirulina is available in powder or pill form, or as flakes.

Health Benefits of Spirulina

Spirulina is rich in valuable nutrients:

Protein. Spirulina contains all the amino acids our bodies need to build strong muscle.

Carotenoids. Spirulina has 10 times the amount of beta carotene than carrots. Beta carotene is a powerful antioxidant that helps prevent and repair cell damage.

Gamma linolenic acid (GLA). Spirulina is one of the few sources of GLA. GLA (an essential fatty acid) is an anti-inflammatory, helps prevent heart disease, and benefits those who suffer from arthritis.

Vitamins. Spirulina contains high amounts of B vitamins, which help maintain a healthy heart, and vitamin E, another powerful antioxidant.

Minerals. Important minerals in spirulina include iron, zinc, manganese, copper, and selenium (also an antioxidant).

Studies on the health benefits of spirulina involving humans are rare and more research is needed to show its effectiveness.

In one study involving people who chewed tobacco, spirulina was shown to significantly reduce precancerous lesions in the mouth (leukoplasia).[1]

A number of test tube and animal studies suggest spirulina can:

  • boost the immune system by increasing the production of antibodies and cytokines (infection fighting proteins)
  • protect against allergic reaction by preventing the release of histamines
  • enhance the growth of good bacteria (probiotics)
  • can fight viruses, including influenza, herpes, and HIV.

Danger of Spirulina

Contamination of toxic substances (microcystins) is one danger of spirulina. Heavy metals present in the water can also be absorbed into spirulina and be harmful to the body. It is important to buy only trusted brands of spirulina.

Precautions of Spirulina

Spirulina appears safe, but as with any supplement, excessively high doses should be avoided.

Because very few studies have been done on humans, it is best to consult with your doctor before taking if:

  • under the age of 18
  • pregnant or breastfeeding
  • taking medications
  • you have an autoimmune disease.

Because spirulina contains all amino acids, including phenylalanine, people with phenylketonuria (PKU) should avoid taking.

References

[1] Nutr Cancer. 1995;24:197-202.

Disclaimer

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