Comparison
Standardized Spirulina 500 mg and Blue Spirulina
Standardized Spirulina 500 mg (Swanson Ultra) lists 5 distinct ingredients and Blue Spirulina (Double Wood Supplements) 2 (rows of one ingredient counted once); 2 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 0.55.
| Ingredient | Standardized Spirulina 500 mg | Blue Spirulina |
|---|---|---|
| Blue-Green Algae | 500 mg | 1,000 mg |
| Phycocyanin | 50 mg | 350 mg |
| Vitamin A | 375 mcg RAE (42%) | |
| Vitamin K | 4 mcg (3%) | |
| Zeaxanthin | 0.475 mg |
Amounts are per serving as DSLD gives them: Standardized Spirulina 500 mg, 1 veggie capsule; Blue Spirulina, 1 g. Current labels entered January 2019 and September 2021. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Standardized Spirulina 500 mgSwanson Ultra: every row against all products listing it
- Blue SpirulinaDouble Wood Supplements: every row against all products listing it