Nutricost

Nutricost Organic Spirulina 500mg

Spirulina
Tablet
240
Gluten Free

4.7/ 5 on Amazon588Amazon ratings300+bought last month4.3ProductDome score

Better rated than 87%

High confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology

Best forYou want an organic, non-GMO spirulina supply in tablet form without extra additives.

A large 240 tablet bottle of organic spirulina at 500mg per tablet, priced for buyers who want a plain, no frills version of the algae supplement.

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ProductDome scorecard

How it ranks among the 30 spirulina we track

4.3/ 5ProductDome scoreHigh confidence

Owner satisfaction · 56% of scorecategory median 4.6★4.7

4.7★ across 588 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 1,030 ratings3.5

588 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score3.4

300+ bought on Amazon last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 30 spirulina we track - how the scorecard works · full spirulina data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

Organic spirulina tablets from Nutricost at 500mg per tablet, 240 tablets per bottle, labeled gluten free, soy free and non-GMO.

Spirulina is a blue-green algae commonly taken as a plant based nutrient source, and the tablet format here gives a large 240 count supply rather than a smaller trial size. Nutricost leans on tablet count and purity claims rather than added flavors or blends.

500mg organic spirulina per tablet
240 tablets per bottle
Non-GMO
Gluten free, soy free

Who it's for

Works for buyers who already know they want spirulina and are looking for a plain, large count tablet bottle without added extras. Not the choice for anyone who dislikes swallowing tablets, since there is no powder option in this listing.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out

Large 240 tablet count
Gluten free and soy free

What to check first

500mg per tablet means several tablets are needed to reach typical serving sizes
Tablet only, no powder option

Performance notes

At 500mg per tablet, reaching common spirulina serving sizes of a few grams requires taking multiple tablets at a time, which the 240 count bottle accommodates for daily use over several weeks.

Specifications

Brand	Nutricost
Model	NCS67266
Form	Tablet
Count	240
Diet	Gluten Free
Allergens	Soy Free

How it compares

This product against the closest alternatives we track in spirulina.

Product	Amazon rating	Ratings	ProductDome score
Nutricost Organic Spirulina 500mgThis product	4.7 / 5	588	4.3 / 5
Nutrex Hawaii Pure Hawaiian SpirulinaNutrex	4.6 / 5	10,856	4.5 / 5
Micro Ingredients Organic Spirulina SupplementMicro	4.6 / 5	9,927	4.5 / 5
NOW Foods SupplementsNow	4.6 / 5	8,124	4.5 / 5
Kate Naturals Organic Spirulina Powder for Immune Support and Antioxidants. Nutrient…Kate	4.5 / 5	5,063	4.5 / 5

Frequently asked

Questions about the Nutricost NCS67266

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

How many spirulina tablets come in this bottle?

240 tablets.

Is this spirulina organic?

Yes, it is labeled organic.

Is this product gluten free?

Yes, and it is also labeled soy free.