Interactions on record — worth a quick check against your medications. Based on 1 of 2 ingredients. Check your meds →
Dietary supplement

Chlorella 500 mg Ingredients & Drug Interactions

by NutriBiotic Super Greens

Chlorella 500 mg label
See full label image
Tablet Or Pill Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Chlorella 500 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Chlorella 500 mg is a dietary supplement by NutriBiotic Super Greens with 2 active ingredients. Its ingredients are commonly taken for general nutrition and 'detox' support, immune support, liver and kidney support.Based on those ingredients, 337 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Chlorella. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Chlorella 500 mg by NutriBiotic Super Greens

Ask about any prescription or over-the-counter medication and we check it for interactions with Chlorella 500 mg by NutriBiotic Super Greens — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Chlorella 500 mg by NutriBiotic Super Greens

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 12, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: chlorella, a freshwater algae, at 500 mg per tablet. Chlorella is a whole-food supplement with naturally occurring vitamins, minerals, and other plant compounds.

The tablet also contains food glaze as an inactive ingredient to help with form and storage.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: general nutrition and nutrient support.
  • We looked for evidence on: Pregnancy-related iron deficiency, immune support, detoxification, antioxidant support.
  • The strongest evidence on file: Chlorella is rated "Possibly Effective" for Pregnancy-related iron deficiency (Natural Medicines).

Chlorella is possibly effective for pregnancy-related iron deficiency — there is some clinical support for this use. For brain tumors, nonalcoholic fatty liver disease (NAFLD), depression, and fatigue, the evidence isn't established in the data we hold.

That doesn't mean it doesn't work for these purposes; it means we don't yet have reliable evidence to rate whether it does.

The evidence, ingredient by ingredient Chlorella

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Chlorella is generally well tolerated in the short term. The most common side effects are mild: allergic reactions, abdominal cramping, constipation, diarrhea, fatigue, gas, nausea, sun sensitivity, and changes in stool color — especially during the first two weeks.

Serious allergic reactions, including anaphylaxis, are rare but have been reported. One important caveat: product quality and purity vary widely, so source matters.

For pregnancy, the safety data suggests it's possibly safe, but the data is limited. For breastfeeding, there isn't enough information on file to know either way — talk with your pharmacist or doctor before use while nursing.

Side effects, ingredient by ingredient Chlorella

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Chlorella.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 337 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Check before taking if you're on warfarin (Coumadin) or any other blood thinner — chlorella could make it less effective. Also double-check any photosensitizing drugs (medications your doctor said make you sun-sensitive), since chlorella can add to that effect.

Use the search tool on this page to verify your exact medications.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Chlorella might be worth considering if you have pregnancy-related iron deficiency or are curious about whole-food nutrition — and if you don't take warfarin or photosensitizing medications. Anyone on a blood thinner or a drug that increases sun sensitivity needs to check with their pharmacist first.

If you have a history of food or algae allergies, be cautious and start slow.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Jan 23, 2023.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Chlorella 500 mg, straight from the product label.

Brand NutriBiotic Super Greens
Barcode (UPC) 728177000905
Net contents 150 Vegan Tablet(s)
Market status On market
Date entered into DSLD Jan 23, 2023
DSLD ID 273252
Product type Non-nutrient/non-botanical
Supplement form Tablet Or Pill
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Chlorella 500 mg by NutriBiotic Super Greens, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
6 Tablet(s)
Maximum serving Sizes:
6 Tablet(s)
Servings per container
25
UPC/BARCODE
728177000905
IngredientAmount% DV
Protein2 Gram(s)4%
Calories11 Calorie(s)--
Chlorella3 Gram(s)--

Other ingredients: Food Glaze

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formula

Green Superfood! NutriBiotic Chlorella is an ancient, single-celled microalgae. Chlorella is one of nature's richest sources of chlorophyll and provides beta-carotene as well an array of vitamins, minerals, and trace elements.

Chlorella's tough protective cell wall is broken by special, low temperature processing, ensuring 90% nutrient availability and easy digestibility delivering an impressive nutritional profile of beneficial nutrients.

Broken cell wall Nutrient-rich super green food Microalgae

Formulation

This potent, green superfood is aquacultivated under the strictest, controlled conditions in fresh water without the use of herbicides, pesticides, or toxic chemicals.

Vegan

Gluten free Made without: GMOs, milk, soy, eggs, yeast, wheat, rose hips, peanuts, tree nuts, fish, crustacean shellfish, animal products, fillers, binders, excipients, lubricants, starch, sweeteners, colorings, flavorings, and preservatives.

Made with Non-GMO ingredients

Suggested/Recommended/Usage/Directions

Suggested use: As a concentrated dietary supplement, take 6 tablets daily with or without meals.

Precautions

Warning: Keep out of reach of children. Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under six. In case of accidental overdose, call a doctor or poison control center immediately.

As with any supplement, you should consult your physician before using this product.

If you are nursing, pregnant, or considering pregnancy, you should consult your healthcare practitioner prior to using this product.

General Statements

Please Recycle

Typical Nutrient Profile Per Serving: Vitamin A (as beta carotene) 265 mcg RAE Vitamin D 1 mcg Vitamin K 7 mcg Thiamine 38 mcg Riboflavin 136 mcg Niacin 960 mcg NE Vitamin B6 48 mcg Biotin 9 mcg Iron 670 mcg Phosphorous 30 mg Iodine 36 mcg Magnesium 9 mg Chlorophyll 72 mg

FDA Statement of Identity

Dietary Supplement

Seals/Symbols

Not tested on animals Nitro Pak Naturally fresh Bacteria free environment

Brand IP Statement(s)

Copyright 2019 NutriBiotic. All Rights Reserved.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Chlorella 500 mg by NutriBiotic Super Greens label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Chlorella 500 mg label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Chlorella 500 mg by NutriBiotic Super Greens

These are the 2 active ingredients this product is made of. Select any to open its full monograph.

Serving size6 Tablet(s) Dosage formTablet Or Pill Servings per container25 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Protein

2 Gram(s) per serving

Chlorella

Interacts with
337 drugs
3 Gram(s) per serving

Chlorella is a nutrient-rich freshwater green algae taken as a supplement for general wellness, immune support, and 'detox.' Some small studies sugges...

Chlorella monograph & interactions

Other (inactive) ingredients: Food Glaze. These complete the product’s ingredient list but are not active constituents.

Interaction report

Chlorella 500 mg by NutriBiotic Super Greens Drug Interactions

Want to check YOUR meds against Chlorella 500 mg?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
337Drugs
337 Moderate

Ingredients driving the most interactions

Chlorella 337

Individual Drug Interactions

The ingredients in Chlorella 500 mg interact with 337 drugs. Click any drug to see the details.

1 of the 2 ingredients in Chlorella 500 mg interact with drugs. Each result below shows which ingredient is responsible. Chlorella

Each ingredient & the kinds of drugs it affects

For each ingredient in Chlorella 500 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Chlorella2 drug types · 337 drugs

Photosensitizing Drugs

Theoretically, chlorella might have additive effects with photosensitizing drugs.
Chlorella has been reported to cause photosensitization. In five case reports, patients who had ingested chlorella exhibited swelling followed by erythematopurpuric lesions on sun-exposed areas of the body. Theoretically, concomitant use with photosensitizing drugs may exacerbate effects.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, chlorella might reduce the clinical effects of warfarin.
Chlorella contains significant amounts of vitamin K. There is at least one case report of warfarin therapy becoming sub-therapeutic after initiation of chlorella supplements.

Likelihood Possible Evidence D
Chlorella full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Chlorella 500 mg, from the product label.

NutriBiotic Super Greens

See all NutriBiotic Super Greens products
Name
NutriBiotic
Street Address
P.O. Box 238
City
Lakeport
State
CA
ZipCode
95453
Web Address
www.nutribiotic.com
Pharmacist Counseling Corner

Chlorella 500 mg by NutriBiotic Super Greens: Common Questions

Does Chlorella 500 mg by NutriBiotic Super Greens interact with any medications?
Yes. Based on its ingredients, Chlorella 500 mg has a known interaction with 337 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Chlorella 500 mg contains 2 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take chlorella if I'm pregnant?
The safety data suggests it's possibly safe during pregnancy, but the information is limited. Since you're pregnant, talk with your doctor or pharmacist for personalized advice before starting — that's the safest move.
What are the most common side effects?
Most people tolerate it well, but some experience mild stomach upset, gas, nausea, or loose stools — especially in the first couple of weeks. A small number of people have had allergic reactions or sun sensitivity. Serious reactions are rare.
Does it really help with iron deficiency in pregnancy?
There's some clinical evidence that chlorella is possibly effective for pregnancy-related iron deficiency. If you're pregnant and concerned about iron, though, talk with your OB or midwife — they may recommend iron supplements instead or along with it.
Why does it say product quality varies widely?
Chlorella comes from different manufacturers and sources, and how it's grown, harvested, and processed affects purity and potency. The quality control can be inconsistent across brands, so picking a reputable maker matters.
I'm on a blood thinner. Can I take this?
Not without checking with your pharmacist first. Chlorella is high in vitamin K, which can interfere with how blood thinners like warfarin work. Your doctor or pharmacist needs to evaluate your specific situation before you start.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Chlorella 500 mg is safe with your meds?

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Chlorella 500 mg label
Go deeper

The Full Monographs Behind Chlorella 500 mg’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Chlorella

Interacts with 337 drugs

Chlorella is a nutrient-rich freshwater green algae taken as a supplement for general wellness, immune support, and 'detox.' Some small studies suggest possible benefits for cholesterol, blo...

Read the full Chlorella monograph →
Sources

Sources & How We Checked

Chlorella 500 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 13 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Chlorella 13 references
  1. Peirce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York, NY: William Morrow and Co., 1999.
  2. Ng TP, Tan WC, Lee YK. Occupational asthma in a pharmacist induced by chlorella, a unicellular algae preparation. Resp Med 1994;88:555-7. PubMed
  3. Jitsukawa K, Suizu R, Hidano A. Chlorella photosensitization. New phytophotodermatosis. Int J Dermatol 1984;23:263-8. PubMed
  4. Merchant RE, Carmack CA, Wise CM. Nutritional supplementation with Chlorella pyrenoidosa for patients with fibromyalgia syndrome: a pilot study. Phytother Res 2000;14:167-73.
  5. Merchant RE, Rice CD, Young HF. Dietary Chlorella pyrenoidosa for patients with malignant glioma: effects on immunocompetence, quality of life, and survival. Phytother Res 1990;4:220-31.
  6. Halperin SA, Smith B, Nolan C, et al. Safety and immunoenhancing effect of a Chlorella-derived dietary supplement in healthy adults undergoing influenza vaccination: randomized, double-blind, placebo-controlled trial. CMAJ 2003;169:111-7..
  7. Ohtake, T., Negishi, K., Okamoto, K., Oka, M., Maesato, K., Moriya, H., and Kobayashi, S. Manganese-induced Parkinsonism in a patient undergoing maintenance hemodialysis. Am J Kidney Dis 2005;46(4):749-753. PubMed
  8. Ng, T. P., Tan, W. C., and Lee, Y. K. Occupational asthma in a pharmacist induced by Chlorella, a unicellular algae preparation. Respir.Med. 1994;88(7):555-557. PubMed
  9. Ohkawa, S., Yoneda, Y., Ohsumi, Y., and Tabuchi, M. [Warfarin therapy and chlorella]. Rinsho Shinkeigaku 1995;35(7):806-807.
  10. Azocar J, Diaz A. Efficacy and safety of chlorella supplementation in adults with chronic hepatitis C virus infection. World J Gastroenterol 2013;19(7):1085-90. PubMed
  11. Panahi Y, Badeli R, Karami GR, Badeli Z, Sahebkar A. A randomized controlled trial of 6-week Chlorella vulgaris supplementation in patients with major depressive disorder. Complement Ther Med 2015;23(4):598-602. PubMed
  12. Nakano S, Takekoshi H, Nakano M. Chlorella pyrenoidosa supplementation reduces the risk of anemia, proteinuria and edema in pregnant women. Plant Foods Hum Nutr 2010;65(1):25-30. PubMed
  13. Yavasoglu I, Turgutkaya A, Bolaman Z. Chlorella-induced thrombocytopenia. Sao Paulo Med J 2018;136(6):602-3. PubMed

See these in context on the Chlorella monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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