The most well-known brand of spirulina is Marcus Rohrer. This brand uses only Hawaiian spirulina that is not genetically manipulated and is grown without pesticides or herbicides. It?s also specially packaged in violet glass to ensure that it remains fresh for longer, as it is sensitive to light.

According to the manufacturer, Marcus Rohrer Spirulina contains 60 different nutrients, which boost your overall health, immune system and energy levels. These include vitamins, minerals, such as calcium, iron, potassium and magnesium, trace elements, all of the essential amino acids, chlorophyll, enzymes and antioxidants, as well as high levels of solar energy.

Because spirulina is a natural supplement, the measured values of these nutrients can change.

?Marcus Rohrer Spirulina, a ?super food?, is one of the richest sources of nutrition in the world? and is the perfect supplement to everyone?s diet. Marcus Rohrer Spirulina provides users with energy, helps promote a healthy immune system, increases stamina and also acts as nutritional support while slimming,? reads a press release.

The distribution company for Marcus Rohrer Spirulina in South Africa says the supplement has three principal benefits:

• Cleansing: Spirulina helps the body cleanse itself naturally. Users feel fitter, more cheerful, and have more energy.
• Restoring: Spirulina compensates for deficiencies in the diet and stimulates metabolism.
• Fortifying: Spirulina boosts resistance and activates the body?s natural defence systems. It makes users stronger and better able to cope with the pressures of everyday life.

Spirulina is supposed to speed up recovery time after illness, acts as a natural slimming aid when dieting, and improves the condition of hair, skin and nails.

Extravagant claims indeed. Can spirulina live up to them?

Untested claims

There is a lot of hype about spirulina, but many of the claims regarding its use still have to be tested. Spirulina has been touted as a slimming aid, but according to Harvard Medical School and the Natural Standard, there is no evidence that it was any more effective than a placebo. (Read their article)

There is inconclusive evidence that spirulina may be able to lower cholesterol levels, but more studies are needed to confirm this. Claims have also been made regarding spirulina?s efficacy for cancer and HIV/Aids, but these are still unproven.

Headaches, muscle pain, flushing, sweating and skin reactions have been reported as side effects.

"Although spirulina has been suggested for many conditions, there is not enough evidence to support its use for treatment of any medical condition. It should be avoided in pregnant or breast-feeding women and in children. Spirulina is also best avoided by those with phenylketonuria. Spirulina appears to be well-tolerated with few adverse effects when used at recommended doses. Spirulina may have additive effects when taken with certain vitamins. Consult your health care provider immediately if you experience side effects," concludes the renowned medical school.

Like other herbal supplements and natural remedies, spirulina is not regulated by the US Food and Drug Administration, so there is no guarantee of purity or safety when using natural products.

Always exercise caution when using a slimming aid ? the best way to lose weight is to eat healthily and work out regularly. Remember that no medicine is a "cure-all". If you?re already on prescription medication, check with a health professional that a natural remedy will be safe for you to use. This is especially important if you have a serious condition.