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Spirulina FAQS: Your Questions Answered


What is Spirulina?

Spirulina is a blue-green algae that grows naturally in warm, fresh water-bodies around the world. It is considered a superfood due to it’s powerful health benefits. It is often sold in powder or pill form as a nutritional supplement and many people add it to smoothies and green drinks. It is especially ideal for a vegan diet due to it’s high protein content.

What is the best spirulina to buy?

We’ve looked far and wide to find and review the best spirulina supplements for you. Check out the top 5 here and here:

Where did Spirulina come from?

Spirulina has been around for centuries and is well-known as a superfood of the ancient civilizations. The Aztecs harvested it from Lake Texococo as did the people of Chad, Afica. It was a good source of protein and other vitamins.

Where is Spirulina grown?

Wild spirulina grows in the alkaline lakes of Mexico and on the African continent, although it is commercially grown and harvested all over the world. Spirulina grows in warm, fresh water-bodies where there is abundant sunlight.

Is Spirulina good for you?

Spirulina is one of nature’s near-perfect foods. Many studies have shown that spirulina is a very healthy nutritional supplement. It helps your immune system, provides a boost of energy almost immediately , and is a natural detoxifier as it helps cleanse your body of toxins and impurities.


What are the Spirulina nutrition facts?

Spirulina is 50-75% protein by weight, including all essential amino acids, 15-30% carbohydrates, and 5-10% fat. There are about 30 calories in 10g of spirulina.

What are Spirulina’s main health benefits?

  • Better nutrition – Spirulina is a good source of protein, vitamins, minerals, and essential fatty acids, especially rich in beta-carotene and vitamin K
  • Boost Immune Function – Studies show that spriulina may improve your immune system.
  • Boost energy – After one smoothie packed with spirulina, you’ll see that you get an energy boost.
  • Natural detoxification – Spirulina attaches itself to metals in your body and so that the metals exit your body as waste.

What nutrients are in Spirulina?

Spirulina is packed with protein and amino acids including the essential fatty acid gamma linolenic acis (GLA), omega 3, 6, and 9s, chlorphyll, iron, vitamins B-1(thiamine), B-2 (riboflavin), B-3(nicotinamide), B-6 (pyridoxine), B-9 (folic acid), vitamin C, vitamin D, vitamin A and vitamin E. It is also a source of potassium, calcium, chromium, copper, iron, magnesium, manganese, phosphorus, selenium, sodium and zinc.

Is Spirulina safe?

Studies on humans and animals have shown no toxic side affects directly due to spirulina. There have been no negative side-effects found in studies on animals. Spirulina may not be safe if it is contaminated with other toxix blue-green algae. Because it is a dietary supplement in the US, there is on active regulation of spirulina, but it is considered safe, as long as its not contaminated with other toxins. Each brand of spirulina will give you detail on the safety of its products, but there is generally no need for concern.

Is Spirulina safe during pregnancy?

Yes! Many women even increase dosage during pregnancy.

Does spirulina heal radiation exposure?

According to, a Polysaccharide found in spirulina shows chemo-protective and radio-protective capabilities in laboratory animals. And Spirulina reduced urine radioactivity by 50% in only 20 days in children who were exposed to radiation by the Chernobyl nuclear meltdown. It appear to have detoxifying effects for radiation exposure.

Why is spirulina a good source of protein?

Spirulina is rich in protein, between 50-70 percent by weight. It contains ALL of the essential amino acids. The protein in Spirulina is also highly usable and has net protein utilization rate of between 50-61%. An ounce of spirulina powder (which is about 3 tablespoons) would add a significant amount of protein, similar to two jumbo eggs or a half a serving of chicken breast.

How do people take Spirulina?

You can take Spirulina in table, powder, or flake form. It is recommened to take between 1tsp and 2 tbsp per day, but you can take more or less as you like. People often add spirulina to smoothies or green drinks, especailly since the taste of spirulina is not very appealing by itself.


Should I eat organic spirulina?

It is always a good idea to eat natural, organic food whenever possible. However, don’t be scared of inorganic spiurlina without exploring the details. In fresh water ponds, spirulina is naturally grown among inorganic fertilizer from nature with phosphorus, nitrogen, and natrium.

How is Spirulina differernt from Chlorella, another blue-green algae?

Spirulina and chlorella are both micro-algae and both considered superfoods. Technically, spirulina is a spiral-shaped, multi-cellurlar plant with no nucleus and chlorella is a spherical-shaped single-celled plant with a nucleus. Chrorella is much larger and therefore more difficult to harvest. While they both provide many health benefits, Spirulina has a higher concentration of protein and iron, as well as all 8 amino acids, and a higher percentage of beta-carotene. Chlorella has a greater level of chlorophyll, hence the darker green color.

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