Comparison

100% Organic Spirulina 500 mg and Spirulina Micro-Algae

100% Organic Spirulina 500 mg (Natural Nutra) lists 4 distinct ingredients and Spirulina Micro-Algae (Nature's Way) 3 (rows of one ingredient counted once); 3 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 0.79.

Amount per serving (and % of the Daily Value)
Ingredient100% Organic Spirulina 500 mgSpirulina Micro-Algae
Sodium30 mg15 mg
Protein2 g1 g
Blue-Green Algae3,000 mg760 mg
Potassium42 mg (under 1%)

Amounts are per serving as DSLD gives them: 100% Organic Spirulina 500 mg, 6 tablets; Spirulina Micro-Algae, 2 capsules. Current labels entered May 2021 and December 2014. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own