Antioxidants are essential to fighting against cancer causing agents called free radicals. Spirulina contains phycocyanin, an antioxidant that can help to reduce oxidative cell damage. Phycocyanin is responsible for the blue-green color of spirulina. Phycocyanin works by inhibiting the production of inflammatory signaling molecules, providing impressive antioxidant and anti-inflammatory effects. When spirulina is exposed to light for long periods of time, polyphenolic compounds are increased. There is evidence supporting the role of polyphenols in disease prevention through fighting free radicals and oxidative damage.

Spirulina can be digested easily because of its structure where the cells do not have tough, fibrous walls. But can consuming it improve gut health? More research on humans is needed, but animal studies indicate spirulina may support gut health as people age. A 2017 study on older mice suggests that spirulina may preserve healthy gut bacteria during the aging process. Spirulina does not contain much fiber, so it is essential to include other gut-healthful, high-fiber foods in the diet.

Zeaxanthin is a predominant xanthophyll in human eyes and may reduce the risk of cataracts and age-related macular degeneration. Spirulina is an algal food that contains a high concentration of zeaxanthin hence reducing the risk of cataracts and other optical related degeneration.

When a person has allergies to pollen, dust, or pets, the inside of their nose may swell. This reaction is called allergic rhinitis. There is some evidence that spirulina could help improve the symptoms of this condition. A 2013 study states that spirulina can relieve nasal inflammation and reduce histamine in the body. Compared to a placebo, it may reduce the symptoms of allergic rhinitis, including: runny nose, sneezing, nasal congestion, itching. A 2011 review notes that there is a reasonable amount of evidence for the positive effects of spirulina on allergic rhinitis, but that larger trials are needed before researchers know the true impact.

Cisplatin is thought to affect the liver by reacting with vital compounds such as proteins or DNA in the organ. A recent study published in Food and Function revealed that spirulina may be able to reverse the liver damage caused by cisplatin. Tests revealed that when combined with vitamin C, spirulina also prevented elevated levels of liver enzymes, a signal of cell death. Spirulina, a protein and antioxidant-rich algae may benefit cancer patients whose immune systems are compromised by intensive chemotherapy.

Many elderly individuals suffer from immunological dysfunction, which is characterized by the aging of the immune system – resulting in a reduced ability to fight off infections. It is often a result of a lack of adequate nutritional intake into the body. As we age the amount of food one requires and eats does begin to decrease, therefore it is very prevalent that proper dietary choices are made. Consuming processed, nutrient-poor and acidifying foods takes a negative toll on the body. Low hemoglobin counts (such as anemia – various types -the main reason is that red blood cells do not mature properly and cannot, as a result, carry oxygen throughout the body) is linked to immunological dysfunction. Spirulina not only provides the necessary nutrients to boost energy and immune function but also aids in restoring B12 and Iron levels in the body.

The main cause of AIDS (acquired immunodeficiency syndrome – it is the last stage of HIV infection) is by an infection of HIV (human immunodeficiency virus). HIV does not kill, however it does deplete and wear down the immune system to the point that it cannot protect the individual infected. A dosage of between 5-10g a day can aid in inhibiting HIV-1 virus. It aids the suffering of HIV/AIDS patients, by aiding them to positively gain weight and move through life with more ease. Moreover, when the virus attacks cells in the body it will attach itself to the cell’s cell membrane or cell wall in hopes of penetrating it. The regular consumption of spirulina will prevent this from happening. The virus will not be able to replicate itself and the body’s natural defense mechanisms will overtime be able to eliminate it. Whole raw spirulina has most of the nutrients in it that are beneficial for individuals with HIV/AIDS; vitamin A, Beta-carotene, folic acid, vitamin B6, B12, vitamin C, E as well as magnesium

The consumption of spirulina aids in reducing the toxicity load on kidneys which is caused by heavy metals such as mercury and lead (ed. Gershwin, M.E., & Belay, A., 2008). It is also protective against pharmaceutical damage to the kidneys, which can cause renal toxicity, such as para-aminophenol, gentamicin, and cisplatin.

Spirulina is an amazing source of linoleic acid also known as GLA. GLA has been shown to aid in reducing inflammation on the skin and within the body, being very beneficial for individuals with eczema and psoriasis. Spirulina, when used as a topical face mask, has been shown to improve skin moisture and bring strength to the skin’s immunity. It was also shown to improve one’s complexion and reduce the appearance of wrinkles. Furthermore, the supplementation of spirulina on a daily basis has been shown to tighten skin, combat signs of early aging and protect against sun damage

High blood pressure or hypertension, are often a result of vessel constriction or the viscosity of blood. It leaves an individual at a greater risk of a heart attack or stroke. It is often a result of dietary choices, though genetics and environmental factors, as well as stress and psychological factors, come into play as well. Spirulina reduces blood pressure (both systolic and diastolic) in hypertensive individuals.