Obsah
Obsah
Spirulina is considered a superfood by many. It is an easily digestible nutritional supplement, which belongs to a family of blue-green algae and can be taken in a pill or powder form. Spirulina comes from a type of bacteria scientists call cyanobacterium, specifically arthrospira platensis.
Traditionally, spirulina grew in the warm alkaline lakes of Africa, Hawaii and Mexico among other places. Spirulina was used centuries ago by the Aztecs according to Spanish records from the conquistadors—it grew in Lake Texcoco, Mexico, where the Aztecs called it tecuilati. European explorers observed locals near Africa's Lake Chad using it as food. In our modern era, spirulina has gained the attention of NASA scientists, who have used it as a wholesome nutritional supplement for astronauts in outer space.
Spirulina contains a complete source of protein, vitamins, minerals and phytonutrients. In addition, spirulina has anti-inflammatory and antioxidant properties. For those attempting to maximize their nutritional status, adding spirulina is a good place to start.
Spirulina acts as a prebiotic and helps the growth of other beneficial bacteria in the gut. Spirulina contains chlorophyll, which helps alkalinize (optimize pH levels) the body.
Seasonal allergies can cause sneezing along with itchy eyes, ears and nose and much discomfort for those afflicted. Many take anti-allergy medication such as loratadine (Claritin), diphenhydramine (Benadryl) or sometimes use nasal steroid sprays, such as fluticasone (Flonase). For those wanting to avoid pharmaceutical drugs, spirulina may provide you with another option. Studies have shown that spirulina can help reduce allergic rhinitis symptoms when compared to a placebo (sugar) pill. Spirulina does this by “calming down” the cell’s response to allergens—substances like pollen—which create an allergic response. There are no known studies, however, that compare spirulina to prescription medications.
Spirulina contains compounds, including chlorophyll, beta-carotene, zeaxanthin and phycocyanin, which are potent antioxidants that can neutralize oxidation damage caused by free radicals. Examples of oxidation include rust on metal or the browning that occurs when a cut avocado or apple is left out on the kitchen counter. Internally, oxidation can cause damage to tissues and arteries while increasing risk for cancers and vascular disease. Finding a way to allow the body to protect itself from this process is crucial in disease prevention.
High cholesterol is a risk factor for heart disease. If diet changes and increased exercise are not enough to lower cholesterol, most doctors will prescribe statin drugs, such as atorvastatin (Lipitor), simvastatin (Zocor) and lovastatin among others to help lower cholesterol levels. Many who are concerned about the side effects either avoid these drugs altogether or sometimes consider a more natural approach and use red yeast rice.
Spirulina provides another weapon in the cholesterol-lowering arsenal. A 2008 study of the Mexican population showed spirulina could lower cholesterol values and blood pressure in test subjects.
A more recent study from 2014 showed that 1 gram of spirulina taken daily could lower total cholesterol by 16 percent when taken for 12 weeks. It also lowered triglycerides and LDL (bad) cholesterol. A 2015 study confirmed spirulina’s cholesterol-lowering benefits.
Type 2 diabetes is a leading contributor to heart disease, strokes, kidney disease and memory impairment. Diabetes occurs when the body is unable to use the sugar that is circulating in the blood. A person with type 2 diabetes can control their glucose levels by watching their diet and exercising, and oral medications are frequently prescribed to an individual who needs further assistance. Spirulina may also be a useful addition to one’s daily routine.
Studies using animal models show spirulina can be helpful in controlling blood sugar and preventing complications from diabetes, such as diabetic kidney disease. Another study showed spirulina used topically may be useful in the treatment of diabetic wounds. However, more research needs to be conducted before it becomes commonly used.
"Arthritis" comes from the Greek word arthron, which means "joint" and the Latin word itis, which mean "inflammation". Therefore, arthritis means “inflammation of the joint”. In general, there are two main types of arthritis. The first is osteoarthritis (~95%) and the second is rheumatoid arthritis (~5%).
A 2006 study showed that spirulina has anti-inflammatory properties and could help with all arthritis-related pain. A more recent study in 2015 showed similar findings, indicating that spirulina decreased inflammation by lowering blood levels of COX-2, an enzyme targeted by drugs like ibuprofen and naproxen, without the pharmaceutical side effects.
Spirulina can help detoxify the body from heavy metals. Arsenic, which is associated with increased risk for neurological disease and diabetes can be detoxified from the body using spirulina’s health properties according to a study from India, where the water supply had high levels of arsenic.
As the population ages, neurodegenerative diseases become more common. They affect not only the patient but also the caregiver. A healthy diet, physical exercise, and brain puzzles such as word searches and crossword puzzles, can all be used as part of an integrative approach in optimizing brain health.
Spirulina may also play a role. A 2010 study in the Journal of Alzheimer’s Disease showed that spirulina, in addition to a few other supplements like curcumin, may prevent the formation of amyloid plaques, which are believed to be the cause of Alzheimer’s disease. More research, however, is needed.
As a person ages, they are at increased risk for cataract formation, which occurs when the lens of the eye becomes cloudy due to oxidation. Studies from 2013 and 2014 show that phycocyanin, the active ingredient in spirulina, can help prevent cataracts from forming. Prevention is the best medicine!
The FDA considers Spirulina to be “Generally Regarded As Safe” (GRAS), and most experts would recommend a daily dose no greater than 50 grams per day, which is well below common supplement daily doses of 3 to 5 grams/day. There is no evidence of any toxicity at usual doses, and spirulina has been shown to be very safe as a nutritional supplement.
Spirulina can be used as a supplement, and many manufacturers sell it in a pill or powder form. The powder formulation is best when adding to foods. If using spirulina powder, I recommend adding it to a smoothie or perhaps adding it to pancake mix, cookies, brownies, guacamole, popcorn or homemade bread.
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