Blue-Green Algae 500 mg
by NOW · tablet or pill · 120 tablets
- On the market (NIH)
- UPC 7 33739 02627 9
- DSLD label 13785
- Serving 2 to 4 tablets; amounts per 4 tablets
- 30 servings
Blue-Green Algae 500 mg by NOW lists 3 ingredients, 3 with an amount per serving of 4 tablets, such as 560 IU of vitamin A, 0.7 mg of iron and 2 g of blue green algae, beside 1 Nutrition Facts row (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on October 1, 2012.
What is in Blue-Green Algae 500 mg?
Each row as the label prints it, per serving of 4 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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Calories | 5 Calories | ||
| Protein | 1 g | 2% | 77% of 8,985 products listing protein give more (median 16 g). |
| Vitamin Aas Beta-CaroteneVitamin A (Form: as 100% Beta-Carotene) | 560 IU | 11% | 91% of 5,772 products listing vitamin A give more (median 4,000 IU). |
| IronIron Note: naturally occurring | 0.7 mg | 4% | 86% of 6,910 products listing iron give more (median 5 mg). |
| Blue Green Algae | 2 g | Higher than 88% of 709 products listing blue-green algae (median 500 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 13785 (entered October 1, 2012), 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:
- 91% of the 5,772 products that print an amount of vitamin A list more than its 560 IU of vitamin A (median 4,000 IU).
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 Blue-Green Algae 500 mg's, rare ingredients counting for more.
- Organic Spirulina 5 gAmazing India 4 shared, 88% alike
- Best SpirulinaDoctor's Best 4 shared, 85% alike
- Spirulina PowderBareOrganics 3 shared, 80% alike
- Spirulina Micro-Algae 760 mgNature's Way 3 shared, 77% alike
- 100% Organic Spirulina 500 mgPlanetary Herbals 4 shared, 76% alike
- Spirulina PowderSource Naturals 4 shared, 76% alike
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: As a dietary supplement, take 2 to 4 tablets daily. Start with a smaller amount and gradually increase dosage over several weeks. Consider taking these other NOW(R) products: Energy, Detox Support(TM) and Triphala.
- Warnings
- Caution: For adults only.
- Consult physician if pregnant/nursing, taking medication, or have a medical condition.
- Keep out of reach of children.
- Do Not Eat Freshness Packet. Keep in Bottle.
- Storage
- Store in a cool, dry place after opening.
Source: label statements in DSLD label 13785.
What else is on the label?
Other ingredients: Cellulose, Magnesium Stearate.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GMP QUALITY ASSURED.
How many labels does Blue-Green Algae 500 mg have?
3 labels are on file under this name since October 1, 2012: other sizes, label designs and reformulations. The current one leads this page.
- Label 13785 (current) Entered October 1, 2012 · on the market · 120 tablets · UPC 7 33739 02627 9
- Label 13784 Entered October 1, 2012 · on the market · 180 veg capsules · UPC 7 33739 02624 8
- Label 13781 Entered October 1, 2012 · on the market · 90 veg capsules · UPC 7 33739 02623 1
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names NOW FOODS (manufacturer), Bloomingdale, IL. All NOW products.