Powder vs Capsule: Which Spirulina Supplement is Best

Whether you choose to take it in capsule or powder form, spirulina is an excellent supplement choice for health maintenance and restoration. Which form is right for you? 

What Is Spirulina?

Spirulina is a large, single-celled algae named for its microscopic spiral-shaped strands. It is made up primarily of protein (65%) and is the most balanced and digestible plant protein source. Extensively tested, spirulina is found to be a non-toxic, cholesterol-free natural food rich in protein, Vitamin B-12, Vitamin C, Vitamin D, minerals, phytonutrients, Gamma-Linolenic Acid (GLA) and trace elements. Benefits of spirulina include:

  • The enzymes in spirulina are in assimilable form and ready for use in the body.
  • Spirulina provides intense nutritional support to aid in tissue repair, organ function, energy, digestion and immunity.
  • It feeds and increases intestinal flora such as lactobacillus and bifidus.
  • Spirulina helps calm nerves and fight stress. 
  • Spirulina is an effective weight loss aid.

Spirulina Capsules

Let’s begin by discussing capsules. First of all, purchase only quality capsules; they should be dark green or blue-green in color, contain no excess fillers or additives, and be free of spots or specks. Store capsules in a dark, cool, dry place to limit damage by exposure to light and air. The recommended dosage to start with is six 500 mg capsules per day, gradually increasing to 12 or more per day. Often people take 15 to 20 capsules in a day for more therapeutic dosing.

Spirulina Powder

As with spirulina capsules, 100% pure spirulina powder is dark green or blue-green, and has no additives or fillers or colored specks in it. Spirulina powder keeps well in an airtight container in a cool, dark and dry place. The recommended dosage is ½ tsp. a day to start, increasing to 1 tsp. Many people take 2 tbsp per day or more. Add powder to liquid slowly while stirring or use a blender or mini blender. Sprinkled on salads, soups, pasta, etc., spirulina powder is a tasty way to add nutrition to your food.  Add to foods after cooking to retain spirulina’s nutrients.

Powder vs. Capsules

Although delivering the same benefits as powder, capsules take about an hour to dissolve and enter the bloodstream, so if you’re looking for a quick pick-me-up, capsules won’t do. Likewise, because powder works so quickly, as a weight-loss aid, consuming spirulina powder mixed in water or a low calorie beverage immediately before a meal will provide an immediate reduction in appetite; however, by taking it in capsule form, you will have to wait an hour before eating. 

Powder is better because it is more easily digested, begins to work immediately and can be added to food. You would need to take 20 capsules to equal 1 tbsp of powder, definitely a plus for those who don’t like to take pills. On the other hand, capsules can be better mainly because some people simply don’t like the taste of spirulina powder. Capsules aren’t as messy as powder, and are easily taken anywhere.  

So, whether you choose to take it in capsule or powder form, there’s no doubt spirulina is an excellent supplement choice for health maintenance and restoration.   


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