Blog Nutrition Nutrition Facts Blue Spirulina Facts, Health Benefits And Side Effects

Blue Spirulina Facts, Health Benefits And Side Effects

Algae might not sound like the most appetizing food group, but blue spirulina could make you a believer. This extraterrestrial-like food is rich in protein and nutrients – plus it has a very cool color!

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What Is Blue Spirulina?

“Spirulina” is actually the name of a genus of blue-green algae that belongs to the phylum cyanobacteria. This microorganism is about 2 to 4 micrometers wide and has a cylindrical shape. It is spiral-shaped, which is where blue spirulina got its name.

Difference Between Blue And Green Spirulina

Green spirulina is also a form of algae, but it is actually a species within the Arthrospira genus. This species thrives in warm climates and higher temperatures. Meanwhile, blue spirulina lives in colder waters and prefers colder temperatures.

Blue Spirulina Nutrition Facts

It’s impossible to talk about blue spirulina without mentioning its nutritional benefits. A single tablespoon (7 grams) of dried spirulina powder contains (7):

  • Calories: 20
  • Digestible carbs: 1.7 grams
  • Protein: 4 grams
  • Vitamin B1 (thiamine): 11% of the RDA
  • Vitamin B2 (riboflavin): 15% of the RDA
  • Vitamin B3 (niacin): 4% of the RDA
  • Copper: 21% of the RDA
  • Iron: 11% of the RDA

It also contains decent amounts of magnesium, potassium, and manganese, and small amounts of almost every other nutrient that you need.

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Benefits Of Blue Spirulina

Blue spirulina is loaded with various nutrients and antioxidants that may benefit your body. Some of the blue spirulina health benefits include:

Powerful Antioxidant And Anti-Inflammatory Properties

Oxidative damage  and chronic inflammation is the root of many diseases and health conditions, including obesity, heart disease, diabetes, arthritis, and even cancer. Eating foods that fight these processes may help prevent the development of these conditions (8).

Blue spirulina contains high concentrations of powerful antioxidants such as phycocyanin and chlorophyll. These two substances have been shown to have powerful antioxidant and anti-inflammatory effects (8).

Can Lower “Bad” LDL And Triglyceride Levels

Heart disease is  the number one cause of death in the United States. One of the major risk factors for heart disease is high LDL cholesterol levels and low HDL cholesterol levels. Spirulina contains compounds that have been shown to help lower total cholesterol, LDL cholesterol, and triglycerides while increasing HDL levels (8).

Blue spirulina may also fight atherosclerosis by reducing oxidative stress and reducing inflammatory markers (8).

Can Help You Lose Weight

People have been using spirulina for weight loss. It’s not exactly clear why spirulina has this effect, but it may be due to its high fiber content. Fiber can help you feel full for longer periods of time, making it easier to stick with a sensible eating plan (5).

Read More: B12 Foods Vegetarian: What To Eat To Prevent Deficiency

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Can Improve Digestion And Gut Health

With about 20 percent of your immune system in your digestive tract, it’s no wonder that certain foods can have a big impact on your immune function and health. Spirulina has been shown to significantly improve the health of the gastrointestinal tract by increasing levels of “good” bacteria like Lactobacillus and Bifidobacterium (10).

The blue-green color of spirulina is a good indication that it contains high concentrations of phycocyanin, which has been shown to improve the health and function of the cells in your intestinal lining. This can help you fight digestive problems such as bloating, constipation, and diarrhea (10).

Can Help Fight Infections And Diseases

Blue spirulina contains compounds such as phycocyanin, and polysaccharides that can help fight infection. These compounds may also work against specific types of cancer cells, such as those found in the prostate or breast. The immune-boosting effects of blue spirulina may also contribute to the prevention and treatment of other conditions, such as autoimmune disorders (8).

May Have Anti-Cancer Properties

Early studies have shown that spirulina may help prevent and fight cancer, particularly when used alongside chemotherapy. It’s believed that this is due to its ability to protect tissues from oxidative damage while simultaneously promoting the regeneration of new cells (8).

May Reduce Blood Pressure

High blood pressure  is a major risk factor for many diseases and health conditions, such as heart disease and stroke. A few studies suggest that spirulina may be able to lower blood pressure by improving your circulation and reducing inflammation. Increased production of nitric oxide may also help lower blood pressure by widening blood vessels and improving the function of your heart (4).

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Improves Symptoms Of Allergic Rhinitis

Allergic rhinitis, also called hay fever, is a common condition that can cause many annoying symptoms, such as sneezing and sniffling. Some studies suggest that spirulina may be able to reduce the severity of these symptoms because of its anti-inflammatory effects. This supplement may be especially beneficial for people who experience allergic reactions due to pollen exposure (11).

Spirulina may help manage other allergic reactions as well, such as those associated with food allergies, bug bites, and certain medications (11).

May Help Keep Your Eyes Healthy

Eyesight is one of the most important aspects of your overall health. Unfortunately, many people experience vision problems as they get older. Blue spirulina may help protect against these problems by fighting oxidative stress and reducing inflammation, which can damage your eyes (9).

May Be Effective Against Anemia

The most common form of anemia  is due to a lack of iron. Spirulina is rich in the mineral iron, which your body needs to make hemoglobin and red blood cells. Consuming this supplement may help treat anemia by increasing the absorption of nonheme iron in your diet (12).

May Improve Muscle Strength And Endurance

Exercise-induced oxidative damage is a major contributor to muscle fatigue. Luckily, spirulina may be able to help fight this damage by reducing oxidative stress and improving your strength and endurance. By decreasing the amount of free radicals in your system, spirulina can reduce muscle soreness after exercise (13).

May Boost Your Energy Levels

There are many factors that contribute to fatigue, such as lack of sleep, anemia, an underactive thyroid, poor diet, and stress. Spirulina appears to have anti-fatigue effects that can help fight these factors by boosting energy levels. It’s thought that spirulina may also improve the body’s ability to produce ATP by increasing the availability of oxygen in your cells (6).

Spirulina helps get rid of symptoms of the common cold, such as fatigue and irritability.

May Aid Blood Sugar Control

There are many factors that contribute to insulin resistance, which can lead to type 2 diabetes . Studies have shown that spirulina may help decrease your risk of developing diabetes by improving insulin secretion and sensitivity. It’s thought that this supplement increases the production of adiponectin, a hormone that plays a role in blood sugar regulation (2).

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Blue Spirulina Side Effects

Spirulina is generally very safe to consume in average recommended food amounts: usually a few tablespoons each day.

Exceeding these limits could mean overdosing on specific vitamins and minerals which come with their own sets of negative side effects.

Before you start taking blue spirulina supplements or foods that contain the ingredient, it’s important to consider any possible side effects. They include:

Possible Vitamin B-12 Overdose

Vitamin B-12 plays many important roles in the body, including (14):

  • Helping maintain strong bones, good vision, and healthy nerve cells
  • Helping produce red blood cells
  • Helping prevent anemia
  • Maintaining the health of your nervous system

It’s vital for your health and well-being. Unfortunately, this vitamin can be difficult to get from food sources alone — especially if you’re vegetarian or vegan. Since spirulina contains high levels of vitamin B-12, eating it regularly may cause toxicity, which can have negative side effects.

Excess vitamin B-12 in your system is typically eliminated through urine. However, too much of this supplement can lead to a number of symptoms, including (14):

  • Dizziness
  • Blurry vision
  • Insomnia
  • Depression
  • Loss of appetite
  • Sore tongue and mouth
  • Stomach pain and bloating
  • Increased heart rate.

If you experience any of these symptoms after taking spirulina, it’s best to seek medical attention right away.

blue spirulina benefits

Blue Spirulina Pregnancy And Breastfeeding

Spirulina is generally regarded as safe during pregnancy. It’s important to note that not enough research has been conducted on the safety of spirulina when breastfeeding. Avoid taking it if you’re pregnant or breastfeeding unless your doctor recommends otherwise.

May Cause Allergies

Spirulina is a type of blue-green algae. Because it’s a natural food source, some people assume that spirulina is entirely safe to eat. However, allergies to blue-green algae can cause serious reactions in sensitive individuals. If you’re allergic to algae, it’s important to avoid foods like spirulina. It may cause itching, swelling, shortness of breath, and nausea (1).

If you experience these or any other reactions after eating spirulina or similar supplements, stop use immediately and speak with your doctor. Your allergist can run tests to find out what specific type of algae you’re allergic to so that you can avoid it in the future.

Blue Spirulina General Interaction

There aren’t any known drug or supplement interactions associated with spirulina. However, it is always a good idea to speak with your doctor before taking this supplement.

Read More: 1-Day Detox Guide To Kick-Start A Healthy Lifestyle

How To Use Spirulina

There are several ways to incorporate blue spirulina into your diet. They include:

In A Smoothie Bowl

Smoothie bowls are delicious, nutritious smoothie-like desserts made with fresh fruit and superfoods like spirulina. Simply blend together your favorite fruit (fresh or frozen), with plant-based milk,  a handful of leafy greens, and a scoop or two of spirulina. If you want to add extra sweetness, fresh fruit like bananas works well. Top with granola, nuts, seeds, and additional fruit for an incredibly balanced treat. 

In Soup

If you prefer your blue spirulina in soup form, it’s easy to make at home! Simply stir together your favorite soup stock or broth with mixed veggies, finely chopped fresh herbs (like cilantro or parsley), and a scoop of blue spirulina powder. Whisk until fully incorporated, then simmer to allow the flavors time to meld.

blue spirulina benefits

In Salad Dressing

If you’re looking for a way to add spirulina powder to your favorite salad dressing, simply blend together olive or avocado oil with Dijon mustard, fresh lemon juice a scoop of blue spirulina. If you prefer a thinner consistency, add more oil. Pour over any green leafy salad for an extra boost of vitamin B-12.

In Baked Goods

Spirulina is a great way to add some extra nutrition into your favorite baked goods. Simply substitute in 2 tablespoons of spirulina powder for every 1 tablespoon called for in your recipe. If you want blue bread, cookies, or cakes, simply add liquid and more flour until the consistency you want is reached.

In Noodles And Pasta

Spirulina is great for adding a nutrient boost to your favorite cooked noodles and pasta dishes. Add it to your pasta sauce or sprinkle it over your cooked dish for an extra boost of Vitamin B-12.

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blue spirulina benefits

Blue Spirulina Precautions For Food Safety

Spirulina grows in ponds where it could be susceptible to runoff contamination and heavy metals. Spirulina harvested from natural sources could potentially contain contaminants like arsenic, mercury, and lead (3). It’s important to purchase only non-GMO organic spirulina supplements that have been tested for heavy metal content.

Make sure to check ingredient labels for added dyes, fillers, and flavorings to ensure that you’re getting an effective supplement.

The best blue spirulina is organic, free from any dyes, and harvested from a clean environment without heavy metal contaminants.

Final Thought

Blue spirulina is a rich source of vitamin B-12, which can be difficult to obtain through food alone. It is also rich in antioxidants and a number of other nutrients, including iron and calcium. However, consuming too much of it can lead to symptoms like dizziness and an increased heart rate. Because of this, it’s important to speak with your doctor before incorporating blue spirulina into your daily routine. As always, it’s best to avoid taking any supplements without first consulting a doctor or pharmacist.

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DISCLAIMER:

This article is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional advice or help and should not be relied on to make decisions of any kind. Any action you take upon the information presented in this article is strictly at your own risk and responsibility!

SOURCES:

  1. Anaphylaxis to Spirulina confirmed by skin prick test with ingredients of Spirulina tablets (2014, researchgate.net)
  2. Antidiabetic potential of phycocyanin: effects on KKAy mice (2013, nih.gov)
  3. Blue-Green Algae (2021, medlineplus.gov)
  4. Effects of spirulina consumption on body weight, blood pressure, and endothelial function in overweight hypersensitive Caucasioans: a double-blind, placebo-controlled randomized trial (2016, pubmed.gov)
  5. Effects of spirulina on weight loss and blood lipids: a review (2020, nih.gov)
  6. Ergogenic and antioxidant effects of spirulina supplementation in humans (2010, pubmed.gov)
  7. Seaweed, spirulina, dried (2019, usda.gov)
  8. Spirulina in Clinical Practice: Evidence-Based Human Applications (2010, nih.gov)
  9. Spirulina is an effective dietary source of zeaxanthin to humans (2012, pubmed.gov)
  10. Spirulina platensis alleviates chronic inflammation with modulation of gut microbiota and intestinal permeability in rats fed a high-fat diet (2020, nih.gov)
  11. The effects of spirulina on allergic rhinitis (2008, pubmed.gov)
  12. The effects of Spirulina on anemia and immune function in senior citizens (2011, nih.gov)
  13. The Effects of Spirulina Supplementation on Redox Status and Performance Following a Muscle Damaging Protocol (2021, nih.gov)
  14. Vitamin B12 (2019, nih.gov)
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