PlainVitamins

100% Organic Spirulina 500 mg

by VSN Vital Strength Nutrition · tablet or pill · 100 vegetarian tablets

  • Off the market since November 2019 (NIH)
  • UPC 7 19985 14140 9
  • DSLD label 20647
  • Serving 6 tablets
  • 16.6 servings

100% Organic Spirulina 500 mg by VSN Vital Strength Nutrition lists 11 ingredients, 11 with an amount per serving of 6 tablets, such as 6,900 IU of vitamin A, 0.15 mg of thiamine, 0.21 mg of riboflavin and 0.12 mg of vitamin B6, beside 2 Nutrition Facts rows (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on April 25, 2013.

What is in 100% Organic Spirulina 500 mg?

Each row as the label prints it, per serving of 6 tablets. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

100% Organic Spirulina 500 mg: Supplement Facts rows against the market (DSLD label 20647, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories10 Calories
Calories from Fat1 Calories
Protein2 gProtein in 100% Organic Spirulina 500 mg against 8,985 products2 g per serving; the middle half of products list 2 g to 24 g, the median 16 g.2 g

70% of 8,985 products listing protein give more (median 16 g).

Vitamin Aas Beta-CaroteneVitamin A (Form: as Beta-Carotene)6,900 IU138%Vitamin A in 100% Organic Spirulina 500 mg against 5,772 products6,900 IU per serving; the middle half of products list 2,000 IU to 5,000 IU, the median 4,000 IU.6,900 IU

Higher than 79% of 5,772 products listing vitamin A (median 4,000 IU).

Thiamine0.15 mg10%Thiamin in 100% Organic Spirulina 500 mg against 9,830 products0.15 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg0.15 mg

97% of 9,830 products listing thiamin give more (median 5 mg).

Riboflavin0.21 mg12%Riboflavin in 100% Organic Spirulina 500 mg against 9,824 products0.21 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg0.21 mg

97% of 9,824 products listing riboflavin give more (median 4 mg).

Vitamin B60.12 mg24%Vitamin B6 in 100% Organic Spirulina 500 mg against 15,277 products0.12 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg0.12 mg

99% of 15,277 products listing vitamin B6 give more (median 6 mg).

Vitamin B126 mcg100%Vitamin B12 in 100% Organic Spirulina 500 mg against 14,425 products6 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg6 mcg

74% of 14,425 products listing vitamin B12 give more (median 36 mcg).

Iron2.4 mg13%Iron in 100% Organic Spirulina 500 mg against 6,910 products2.4 mg per serving; the middle half of products list 1.2 mg to 18 mg, the median 5 mg.DV 18 mgUL 45 mg2.4 mg

65% of 6,910 products listing iron give more (median 5 mg).

Sodium25 mg1%Sodium in 100% Organic Spirulina 500 mg against 14,514 products25 mg per serving; the middle half of products list 15 mg to 142 mg, the median 55 mg.25 mg

64% of 14,514 products listing sodium give more (median 55 mg).

Spirulina platensisSpirulina platensis Genus: Spirulina Species: platensis Note: organic3,000 mgBlue-Green Algae in 100% Organic Spirulina 500 mg against 709 products3,000 mg per serving; the middle half of products list 100 mg to 1,000 mg, the median 500 mg.3,000 mg

Higher than 91% of 709 products listing blue-green algae (median 500 mg).

Chlorophyll42 mgChlorophyll in 100% Organic Spirulina 500 mg against 394 products42 mg per serving; the middle half of products list 7.5 mg to 42.75 mg, the median 16 mg.42 mg

Higher than 74% of 394 products listing chlorophyll (median 16 mg).

C-Phycocyanin480 mg
Gamma-Linolenic Acid23 mgGamma Linolenic Acid in 100% Organic Spirulina 500 mg against 740 products23 mg per serving; the middle half of products list 42 mg to 160 mg, the median 90 mg.23 mg

87% of 740 products listing gamma linolenic acid give more (median 90 mg).

Zeaxanthin2 mgZeaxanthin in 100% Organic Spirulina 500 mg against 1,215 products2 mg per serving; the middle half of products list 0.4 mg to 2 mg, the median 1 mg.2 mg

Higher than 62% of 1,215 products listing zeaxanthin (median 1 mg).

Source: NIH ODS Dietary Supplement Label Database, label 20647 (entered April 25, 2013), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • 97% of the 9,830 products that print an amount of thiamin list more than its 0.15 mg of thiamin (median 5 mg).
  • 97% of the 9,824 products that print an amount of riboflavin list more than its 0.21 mg of riboflavin (median 4 mg).
  • 99% of the 15,277 products that print an amount of vitamin B6 list more than its 0.12 mg of vitamin B6 (median 6 mg).
  • Its 3,000 mg of spirulina platensis (filed by NIH under blue-green algae) is higher than 91% of the 709 blue-green algae products that print an amount; 18 list more.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with 100% Organic Spirulina 500 mg's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
SUGGESTED USE: Take 6 tablets daily with food.
Warnings
WARNING: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose, call a doctor or poison control center immediately.
KEEP OUT OF REACH OF CHILDREN.
Allergens and what it does not contain
Pesticide and Herbicide Free
Our tablets are 100% organic without herbicides, pesticides, fertilizers or preservatives and tests negative for BMAA**
Our Ultimate Organics(R) products do not contain conventional pesticides, synthetic fertilizers, growth hormones, genetic modification or antibiotics.

Source: label statements in DSLD label 20647.

What else is on the label?

Other ingredients: None.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): QUALITY ASSURANCE INTERNATIONAL CERTIFIED ORGANIC; USDA ORGANIC. Listed with: USDA Organic seal (a seal is the label's claim; the certifier's own list confirms it).

How many labels does 100% Organic Spirulina 500 mg have?

One label is on file, entered on April 25, 2013.

  1. Label 20647 (current) Entered April 25, 2013 · off the market November 20, 2019 · 100 vegetarian tablets · UPC 7 19985 14140 9

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Where next?