PlainVitamins

Spirulina 500 mg Tablets

by Health Ranger Select · tablet or pill · 64 ounces

  • On the market (NIH)
  • UPC 0 50742 58341 5
  • DSLD label 292791
  • Serving 6 tablets
  • 604 servings

Spirulina 500 mg Tablets by Health Ranger Select lists 20 ingredients, 19 with an amount per serving of 6 tablets, such as 3 g of spirulina platensis, 7,000 mcg of vitamin A, 30 mcg of vitamin K and 0.02 mg of thiamine; 1 sits inside a blend without its own amount, beside 5 Nutrition Facts rows (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on June 22, 2023.

What is in Spirulina 500 mg Tablets?

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).

Spirulina 500 mg Tablets: Supplement Facts rows against the market (DSLD label 292791, January 2026 release)
IngredientAmount% DVAmong products listing it
Spirulina platensis3 gBlue-Green Algae in Spirulina 500 mg Tablets 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).

Calories11 Calories
Protein2.1 g4%Protein in Spirulina 500 mg Tablets against 8,985 products2.1 g per serving; the middle half of products list 2 g to 24 g, the median 16 g.2.1 g

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

Vitamin Aas Beta-Carotene7,000 mcg778%
Vitamin K30 mcg25%Vitamin K in Spirulina 500 mg Tablets against 4,607 products30 mcg per serving; the middle half of products list 35 mcg to 100 mcg, the median 80 mcg.DV 120 mcg30 mcg

76% of 4,607 products listing vitamin K give more (median 80 mcg).

Thiamine0.02 mg2%Thiamin in Spirulina 500 mg Tablets against 9,830 products0.02 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg0.02 mg

over 99% of 9,830 products listing thiamin give more (median 5 mg).

Riboflavinas Vitamin B2no amount given8%
Niacinas Vitamin B30.5 mg3%Niacin in Spirulina 500 mg Tablets against 12,413 products0.5 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg0.5 mg

99% of 12,413 products listing niacin give more (median 20 mg).

Vitamin B60.02 mg1%Vitamin B6 in Spirulina 500 mg Tablets against 15,277 products0.02 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg0.02 mg

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

Vitamin B125 mcg208%Vitamin B12 in Spirulina 500 mg Tablets against 14,425 products5 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg5 mcg

84% of 14,425 products listing vitamin B12 give more (median 36 mcg).

Iron2 mg11%Iron in Spirulina 500 mg Tablets against 6,910 products2 mg per serving; the middle half of products list 1.2 mg to 18 mg, the median 5 mg.DV 18 mgUL 45 mg2 mg

66% of 6,910 products listing iron give more (median 5 mg).

Phosphorus29 mg2%Phosphorus in Spirulina 500 mg Tablets against 3,786 products29 mg per serving; the middle half of products list 45 mg to 200 mg, the median 90 mg.DV 1,250 mgUL 4,000 mg29 mg

85% of 3,786 products listing phosphorus give more (median 90 mg).

Iodine3 mcg2%Iodine in Spirulina 500 mg Tablets against 6,382 products3 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg3 mcg

over 99% of 6,382 products listing iodine give more (median 150 mcg).

Magnesium10 mg2%Magnesium in Spirulina 500 mg Tablets against 14,003 products10 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg10 mg

91% of 14,003 products listing magnesium give more (median 86 mg).

Manganese0.1 mg4%Manganese in Spirulina 500 mg Tablets against 7,016 products0.1 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg0.1 mg

97% of 7,016 products listing manganese give more (median 2 mg).

Chromium80 mcg229%Chromium in Spirulina 500 mg Tablets against 7,825 products80 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg80 mcg

58% of 7,825 products listing chromium give more (median 100 mcg).

Sodium19 mg1%Sodium in Spirulina 500 mg Tablets against 14,514 products19 mg per serving; the middle half of products list 15 mg to 142 mg, the median 55 mg.19 mg

71% of 14,514 products listing sodium give more (median 55 mg).

Potassium45 mg1%Potassium in Spirulina 500 mg Tablets against 11,614 products45 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg45 mg

78% of 11,614 products listing potassium give more (median 99 mg).

Calcium11 mg1%Calcium in Spirulina 500 mg Tablets against 17,831 products11 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg11 mg

96% of 17,831 products listing calcium give more (median 115 mg).

Total Fat0.2 g0%Fat (unspecified) in Spirulina 500 mg Tablets against 11,965 products0.2 g per serving; the middle half of products list 1 g to 2.5 g, the median 1.5 g.0.2 g

98% of 11,965 products listing fat (unspecified) give more (median 1.5 g).

Total Carbohydrates0.4 g0%Carbohydrate in Spirulina 500 mg Tablets against 21,979 products0.4 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.0.4 g

over 99% of 21,979 products listing carbohydrate give more (median 3 g).

Dietary Fiber0.1 g0%Fiber in Spirulina 500 mg Tablets against 6,987 products0.1 g per serving; the middle half of products list 1 g to 4 g, the median 2 g.0.1 g

over 99% of 6,987 products listing fiber give more (median 2 g).

C-Phycocyanin600 mg
Chlorophyll35 mgChlorophyll in Spirulina 500 mg Tablets against 394 products35 mg per serving; the middle half of products list 7.5 mg to 42.75 mg, the median 16 mg.35 mg

Higher than 70% of 394 products listing chlorophyll (median 16 mg).

Gamma Linolenic Acid46 mgGamma Linolenic Acid in Spirulina 500 mg Tablets against 740 products46 mg per serving; the middle half of products list 42 mg to 160 mg, the median 90 mg.46 mg

67% of 740 products listing gamma linolenic acid give more (median 90 mg).

Zeaxanthin4 mgZeaxanthin in Spirulina 500 mg Tablets against 1,215 products4 mg per serving; the middle half of products list 0.4 mg to 2 mg, the median 1 mg.4 mg

Higher than 81% of 1,215 products listing zeaxanthin (median 1 mg).

Source: NIH ODS Dietary Supplement Label Database, label 292791 (entered June 22, 2023), version 9.4.0. See the label on DSLD or its label image (PDF). 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:

  • 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.
  • over 99% of the 9,830 products that print an amount of thiamin list more than its 0.02 mg of thiamin (median 5 mg).
  • 99% of the 12,413 products that print an amount of niacin list more than its 0.5 mg of niacin (median 20 mg).
  • over 99% of the 15,277 products that print an amount of vitamin B6 list more than its 0.02 mg of vitamin B6 (median 6 mg).
  • over 99% of the 6,382 products that print an amount of iodine list more than its 3 mcg of iodine (median 150 mcg).
  • 91% of the 14,003 products that print an amount of magnesium list more than its 10 mg of magnesium (median 86 mg).

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 Spirulina 500 mg Tablets'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 Usage: Take 6 tablets with a meal, or as recommended by your health consultant.
Warnings
Caution: not recommended for children or pregnant or nursing women.
Manufactured in a facility which may contain nuts (peanuts, tree nuts).
Allergens and what it does not contain
Radiation free
Lab-verified, non-GMO, free from radiation, kosher, vegan and grown in the USA. Experience all the goodness of spirulina in a compact, easy-to-take form.
Storage
Storage instructions: Store in a cool, dry place away from direct sunlight after opening.

Source: label statements in DSLD label 292791.

What else is on the label?

Other ingredients: Spirulina, Vegetable Stearate, Silica.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Glyphosate Tested Natural Food Certifiers (Kosher) GMO Guard Natural Food Certifiers Laboratory Verified.

How many labels does Spirulina 500 mg Tablets have?

One label is on file, entered on June 22, 2023.

  1. Label 292791 (current) Entered June 22, 2023 · on the market · 64 ounces · UPC 0 50742 58341 5

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

Who makes it?

The label names Health Ranger Store (distributor), Cheyenne, WY. All Health Ranger Select products.

Where next?