Spirulina Benefits
Posted by admin on May 6th, 2009Spirulina is the popular term that identifies Arthrospira platensis and Arthrospira maxima, two types of blue-green algae. They grow in tropical and subtropical lakes with a high level of pH and high levels of carbonate and bicarbonate. A. platensis is native of Asia, Africa and South America, while A. maxima grows in Central America. Spirulina’s benefits were already known by the Aztecs more than 500 years ago.
Composition and Properties
Spirulina contains the following nutrients and chemicals:
* High amount of proteins (between 55 and 77% by dry weight).
* Carbohydrates (among which rhamnose that helps the assimilation of glucose); fiber.
* Vitamins (B1, B2, B3, B6, B9, B12, biotin, pantothenic acid, inositol, A, D, alpha-tocopherol, K).
* Essential and non essential amino acids (among which methionine, cysteine and lysine).
* Essential fatty acids (such as gamma-linolenic acid (GLA), alpha-linolenic acid (ALA), linoleic acid (LA), stearidonic acid (SDA), eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and arachidonic acid (AA)).
* Minerals (Ca, K, P, Na, Mg, S, Cl, Fe, Zn, Mn, Cu, Co, Ni, Mo, Cr).
* Photosynthetic pigments, such as chlorophyll-a, xanthophyll, beta-carotene.
Spirulina health benefits
* Nutritional, antianemic, and tonic
* Detoxifying, antioxidant, antiradical. antiviral
* Immune system booster (read my immune system boosters post for additional info on more natural immune system boosters)
* Hypolipemic; hepatoprotective
* Anti-inflammatory
* Vasodilative; anticoagulant
Nutritional, antianemic and general tonic properties
Spirulina has proven to be particularly useful in low calorie diets, because of its high nutritional values combined with its low calories (390 Cal for each 100 g of dry product). It helps therefore in contributing with important nutrients during weight loss diets. The essential amino acid phenylalanine (3%) is able to reduce hunger and helps people while following low calorie diets as it determines a feeling of satiety. In such cases it is recommended to take the spirulina supplements around 30 minutes before the main meals. The presence of vitamin B12 is precious especially for vegans. Spirulina is also particularly useful as a supplement for persons involved in sport activities, supplying a good amount of ergogenic vitamins and minerals that help the energetic metabolism, complex amino acids (leucine, isoleucine and valine), essential and non essential amino acids, proteins, antioxidants, carnitine and creatine. Furthermore, the presence of iron, in biochelated form, and of the essential amino acids help the synthesis of hemoglobin and of red blood cells, preventing or reducing some anemic forms. The dietary supplements of spirulina are particularly indicated for pregnant women and during convalescence.
Fighting mental and physical stress (antioxidant and antiradical activity)
In case of stress, the system needs to assimilate a high quantity of antioxidants, with radical scavenger properties. In spirulina it is particularly useful the presence of phycocyanin, for which there are studies that show an antioxidant activity against peroxyl radicals. The antioxidant properties of spirulina are also due to chlorophyllin, derived from chlorophyl, to carotenes, to xanthophylls, to cysteine, to methionine, and to vitamins A and E, to zinc and manganese.
Immune system boosting and antiviral activities
Spirulina strengthens the immune system and has antiviral effects. The gamma-linolenic acid (GLA), and linoleic acid (LA) activate the production of prostaglandins (PGE1) with immune system boosting, anti-inflammatory, and vasodilative properties. The presence of beta-glucans in spirulina might promote the stimulation of the immune system, thanks to an increase of lymphocytes and macrophages. Immune system boosting effects are also attributed to phycocyanins. Studies on animals have shown a relationship between the consumption of Spirulina platensis and the increase of the activity of macrophages and a higher production of nitric oxide (NO), with an hypothetical immunoprotective role. The nitric oxide (NO) acts as a physiological messenger between cells that helps stimulating the phagocytic activity of the cell. The consumption of aqueous extracts of Spirulina platensis in man activates the immune system in the 50% of the subjects, through an increase in the production of interferon-gamma and in the cytolytic activity of the natural killer cells (NK).
Indications
As we have seen, spirulina has many health benefits and, as a dietary supplement, is particularly indicated in the following cases:
* Sport activities (it integrates the nutritional values needed, preventing losses in the muscular mass).
* Psychic and physical stress, or highly stressful situations.
* Vegetarian and vegan diets.
* Low calorie diets and unbalanced diets.







