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  1. $9.99/lb
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  3. $7.99/lb (bulk - not individually packaged)
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Certified: Gluten-Free

Spirulina is a vivid blue-green algae that commonly grows in freshwater lakes and ponds. It's considered a complete protein, containing an ideal balance of all 9 essential amino acids. And its protein is more digestible than other rich protein sources such as red meat and even soy.

Spirulina's whopping protein content isn't the only asset that gives it its superfood status—it's naturally loaded with vitamins A through E, iron, potassium, calcium, and antioxidants. All it takes is one to two teaspoons per day, mixed into virtually any food or liquid, to add a major boost of protein, vitamins and minerals to your everyday diet.

What is Spirulina and Where Does It Come From?

Our spirulina is a blue-green algae that is grown in open-channel, shallow, man-made raceway ponds. Paddle wheels move the water to accelerate growth while growers continually add clean, fresh water and nutrients to the ponds to keep the spirulina thriving. When ready, the spirulina is harvested with filters, washed in fresh water, and then dried by spray drying machines. Our spirulina is non-irradiated and non-GMO (Genetically Modified Organism).

How to Eat Spirulina

To enjoy this superfood, mix 1 teaspoon of the powder in liquids, smoothies, salad dressings, guacamole, or sprinkle it in food. It'll blend right in with the smoky taste of seaweed and give your meal superpowers! Blend the superpowder with fruits and yogurt for a spirulina smoothie, or combine it with avocados for a guacamole dip. On the right-hand side of the page, you can find even more delicious spirulina recipes.

Our Registered Dietitian's Top Pick

Our Registered Dietitian and Health Nut likes to add spirulina to guacamole to boost protein content of the heart-healthy dip. Spirulina is about 55-77% protein by weight compared with 27% of meat and 34% of soy. This means that one ounce boasts 16 grams of protein.

Spirulina Health Benefits

1. Because its cell walls have no cellulose, spirulina's protein is 85%-95% digestible. This percentage is higher than that of any other common plant!

2. Spirulina has an Oxygen Radical Absorbance Capacity (ORAC) of over 24,000, which is four times the ORAC score of blueberries! The ORAC score measures the antioxidant concentration in foods.

3. Spirulina also contains a wide range of minerals, ranging from calcium to potassium to zinc. Amino acids play a key role in our body's ability to efficiently use these minerals - and spirulina contains all 9 essential amino acids!

4. Spirulina has 26 times the calcium of milk, which makes it a more potent alternative to common calcium sources such as dairy and cheeses.

5. Spirulina may lower cholesterol and blood pressure. Its anti-inflammatory properties stem from the presence of gamma linolenic acid. A 2007 study published in the Journal of Agricultural and Food Chemistry found that spirulina consumption protected hamsters from developing atherosclerosis, the build-up of plaque inside arteries.

6. Spirulina can help manage blood glucose levels in diabetic patients. A 2001 study published in the Journal of Medicinal Food observed the effect of spirulina consumption in patients with type 2 diabetes mellitus. The diabetic patients experienced lower blood glucose levels, triglyceride levels, and LDL "bad" cholesterol levels.

What Experts Say

SHAPE Magazine:"A daily 4,500mg dose of this blue-green algae can help relax artery walls and normalize blood pressure. It may also help your liver balance your blood fat levels-decreasing your LDL cholesterol by 10% and raising HDL cholesterol by 15 percent."

Dr. Oz from the Dr. Oz Show:"For a metabolism-boosting snack, blast off with spirulina. Made from dehydrated blue-green algae, spirulina is a miracle from the sea for your metabolism. It's packed with protein and all the essential amino acids your body needs to keep your metabolism charged up by fueling your cells."

Spirulina Through the Ages

Named the "Best Food for the Future" at the 1974 United Nations World Food Conference, spirulina soon caught on as a possible solution to severe malnutrition in third-world nations. The Intergovernmental Institution for the use of Micro-algae Spirulina Against Malnutrition (IIMSAM) was later founded to promote spirulina benefits such its ability to provide the malnourished with nutrients, its low amount of side effects and eco-friendly cultivation practices.

A true future food, it may even soon be cultivated in zero gravity by NASA and the European Space Agency. In fact, NASA includes spirulina in its astronauts' diet and plans to grow the algae on its space station.

Customer Reviews

Leave online feedback and share your thoughts with other customers!

“Wow, the Spirulina and Chlorella I ordered were amazing, I love the bag they come in, and the quality is definitely superb. Chlorella and Spirulina are foods that once consumed, will provide the consumer with immediate, noticeable effects, including the following; uncontrollable euphoria, higher mental capacities, focus, warmth, drive, and millions more. I tried chlorella for the first time here, and I have to say, I do enjoy the taste of spirulina a little more, as chlorella is more astringent, and pungent, but chlorella has its own set of benefits that differ slightly from spirulina, like higher chlorophyll content, the chlorella growth factor to name a couple. Both are excellent foods for a busy person, and also should be a staple for every type of athlete, chess players, everyone. Thank you for the lowest prices ever!”

, College Park, Maryland December 4, 2009

“I am blown away! You guys have set a new standard for shipping and delivery times. I ordered at 5pm yesterday and it was at my door at 10am today with no special delivery requested. Unbelievable. Good Job to all at Nutsonline.
PS. Product looked good as well. ”

, North Providence, RI December 3, 2009

“Arrived super quickly. Such awesome value! I pay more than 3 times the price for the same excellent quality in the whole foods stores. I'm sold on Nuts Online!”

, Silver Spring, Maryland November 29, 2009

“You guys are NUTS!! Thank You. I am thrilled with service and selection and the amazingly low price. I paid almost 2.4X as much for the same quantity about 8-9 years ago!! Wow. I love it. Will be buying much more from Nutsonline for sure”

, Mount Shasta, CA November 21, 2009

“Wow, you guys rock!
Excellent service, excellent products, excellent packaging, pricing and timely delivery!
Received my Spirulina and Chlorella today! Thank you! I will tell everybody I know about you!”

, Atlanta, MD October 14, 2009

“I received nuts and spirulina on schedule and am delighted with the quality of the products. Thank you. I will be back.”

, Austin, Texas October 7, 2009

“These guys must have esp or something! My order was in a UPS truck within the hour!

Excellent spirulina, delicious chocolate sunflower seeds. Great prices.”

, Coconut Grove, Fl October 2, 2009

“This was my first order with you guys, but it won't be the last! The chia and spirulina arrived in only one day and were well packaged. I am thoroughly impressed! Thanks!”

, Plainville, MA September 15, 2009

“The spirulina was waiting for me when I got home. Thank you so much”

, Perry, Iowa September 14, 2009

“Thank you very much for the wonderful products! They are very tasty and it shocked me how fast they arrived in the mail! I will be ordering from your company from now on! ”

, Woodbridge, VA September 2, 2009

“It's wonderful ;o)”

, Angora, MN September 12, 2014

Nutrition Facts

Serving Size 28g (~1 oz.)
(Approx. 16.2 Servings/Pound)

Amount Per Serving
Calories 81
Calories From Fat 19
Total Fat 2g 3%
Saturated Fat 1g 4%
Cholesterol 0mg 0%
Sodium 0mg 0%
Total Carbohydrate 7g 2%
Dietary Fiber 1g 4%
Sugars 1g
Protein 16g
Vitamin A 3% Calcium 3%
Vitamin C 5% Iron 44%



Packaged in the same facility as peanuts, tree nuts, soy, and milk products.


Store in a cool dry place for up to 1 year. It is ok to refrigerate.

Country of Origin: China

ID: 7199

From our family to yours, since 1929

Our beloved grandfather, Poppy Sol, started this business in an open-air market. Three generations later, we’re still bringing smiles to our customers' faces.

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