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Dietary supplement

Chlorella Powder Ingredients & Drug Interactions

by Lidtke

Chlorella Powder label
See full label image
Powder Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Chlorella Powder 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 Powder is a dietary supplement by Lidtke with 1 active ingredient. 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 Powder by Lidtke

Ask about any prescription or over-the-counter medication and we check it for interactions with Chlorella Powder by Lidtke — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Chlorella Powder by Lidtke

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.

Lidtke Chlorella Powder contains one active ingredient: chlorella, a freshwater green algae. That's it — there are no other inactive ingredients listed.

The powder form means you're getting the whole algae with no fillers or binders added.

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: nutrient and nutritional support.
  • We looked for evidence on: Fatigue, Hyperlipidemia, Metabolic syndrome, Nonalcoholic fatty liver disease (NAFLD), Pregnancy-related iron deficiency, immune function — and 2 related terms.
  • The strongest evidence on file: Chlorella is rated "Possibly Effective" for Pregnancy-related iron deficiency (Natural Medicines).
  • Also on file: Chlorella is rated "Insufficient Reliable Evidence To Rate" for Nonalcoholic fatty liver disease (NAFLD), Fatigue, Hyperlipidemia, Metabolic syndrome.

The evidence for chlorella is mixed. It's rated possibly effective for pregnancy-related iron deficiency — so it may help, but the data isn't strong.

For brain tumor, nonalcoholic fatty liver disease (NAFLD), depression, and fatigue, we don't have enough reliable evidence to know whether it works. If you're considering this for any of those reasons, talk with your doctor first about whether it fits your situation.

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, but product quality and purity vary widely between manufacturers, so you're taking a bit of a gamble on consistency. The most common side effects are allergic reactions, abdominal cramping, constipation, diarrhea, fatigue, gas, nausea, photosensitivity, and stool discoloration — especially during the first two weeks.

Rare serious reactions like anaphylaxis have been reported. Because long-term safety data is limited, the product facts advise against using it unless your doctor approves.

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.

Before you take this, double-check with your pharmacist if you're on warfarin or any other blood thinner — chlorella can reduce how well they work. Also flag any medication that makes your skin more sensitive to sunlight.

These are the two main medication types documented to interact with chlorella.

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 help with pregnancy-related iron deficiency, but we don't have solid evidence it works for other uses. If you take warfarin or any photosensitizing medication, you need to check with your pharmacist first.

Expect possible digestive upset in the first two weeks, and know that product quality varies. Talk to your pharmacist before starting, especially if you're on any regular medications.

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 Dec 18, 2021.

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 Powder, straight from the product label.

Brand Lidtke
Barcode (UPC) 630610003483
Net contents 4 Ounce(s); 113 Gram(s)
Market status On market
Date entered into DSLD Dec 18, 2021
DSLD ID 257187
Product type Non-nutrient/non-botanical
Supplement form Powder
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Kosher, 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 Powder by Lidtke, 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:
1 Rounded Teaspoon(s)
Maximum serving Sizes:
1 Rounded Teaspoon(s)
Servings per container
37
UPC/BARCODE
630610003483
IngredientAmount% DV
Chlorella3 Gram(s)--

Other ingredients: None

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.
Formulation

Thank you for choosing Chlorella by Lidtke. We sincerely wish the best of health for you and your family. Lidtke Daesang (Gold Medal) Chlorella is cultivated indoors in a closed, pure environment, yielding consistently higher quality without the high risk of industrial contamination found in outdoor cultivation.

Lidtke indoor cultivation produces a soft, much thinner cell membrane with higher digestibility, better taste, and no need for "broken cell wall" processing used on other chlorella products.

Premium cultivated

Vegan

No added gluten Wheat or dairy Non-GMO

Highly digestible Superior taste

No added gluten, yeast, wheat, soy, dairy, eggs, nuts, fish, shellfish, sugar, preservatives, artificial color or artificial flavor. Lidtke Chlorella is vegetarian, kosher, and Non-GMO.

Lidtke Chlorella is vegetarian, kosher, and Non-GMO.

Formula

Chlorella is an exceptional source of chlorophyll, vitamins, minerals, omega-3 fatty acids, and a complete source of all nine essential amino acids.

Lidtke Chlorella is vegetarian, kosher, and Non-GMO.

General Statements

Lidtke stands behind each product and guarantees customer satisfaction for 365 days from the date of purchase.

Purest on the planet

Superb Quality Since 1994

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Precautions

Warning: Keep out of reach of children.

If you are pregnant, lactating, taking any medications or have a medical condition, consult your doctor.

Discontinue use if adverse reaction occurs. Do not use if seal is damaged or missing.

Toll free: 1-800-404-8185 Adverse events may be reported above.

Storage

Keep lid tightly closed. Keep in a cool, dry place.

FDA Statement of Identity

A Dietary Supplement

Suggested/Recommended/Usage/Directions

Directions for use (Adults): One rounded teaspoon supplies approximately 3g of pure chlorella. Mix with water or juice one daily, preferably taken with food.

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

See for yourself

Chlorella Powder by Lidtke label

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

Chlorella Powder 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 Powder by Lidtke

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Rounded Teaspoon(s) Dosage formPowder Servings per container37 Amounts shown are 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: None. These complete the product’s ingredient list but are not active constituents.

Interaction report

Chlorella Powder by Lidtke Drug Interactions

Want to check YOUR meds against Chlorella Powder?

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 Powder interact with 337 drugs. Click any drug to see the details.

1 of the 1 ingredient in Chlorella Powder 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 Powder 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 Powder, from the product label.

Lidtke

See all Lidtke products
Name
Lidtke Technologies
City
Chandler
State
AZ
ZipCode
85226
Phone Number
1-800-404-8185
Web Address
www.lidtke.com
Pharmacist Counseling Corner

Chlorella Powder by Lidtke: Common Questions

Does Chlorella Powder by Lidtke interact with any medications?
Yes. Based on its ingredients, Chlorella Powder 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 Powder contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism 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 this while pregnant?
Chlorella is rated possibly safe in pregnancy, so some use may be okay — but safety data is limited. Talk with your doctor or pharmacist before starting, especially since you may be considering it for iron deficiency and they'll want to discuss whether it's the right choice for you and your baby.
What are the most common side effects?
Most people have mild digestive trouble, especially in the first two weeks: nausea, diarrhea, constipation, gas, and stomach cramping. You might also notice your stool changes color, feel more tired, or have an allergic reaction. These usually settle down, but if they don't, stop and talk to your pharmacist.
Is this product pure chlorella with nothing else added?
Yes — this powder contains chlorella and no other inactive ingredients listed. Just keep in mind that product purity and quality can vary between batches, so you're not guaranteed the same level of consistency you'd get from a pharmaceutical drug.
Will this help my fatigue?
We don't have enough reliable evidence to say whether chlorella works for fatigue. The science just isn't there yet. If you're dealing with fatigue, your doctor can help figure out what's actually going on and what might genuinely help.
Can I take this if I'm on blood thinners?
Not without talking to your pharmacist first. Chlorella is high in vitamin K, which can make blood thinners like warfarin less effective. Even other blood thinners may be affected, so check the medication search tool on this page or call your pharmacist with the specific drug you're on.

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

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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 Powder label
Go deeper

The Full Monographs Behind Chlorella Powder’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 Powder'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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