Major interaction on record — check this product against your medications before combining. Based on 1 of 3 ingredients. Check your meds →
Dietary supplement

Chlorella Manna Ingredients & Drug Interactions

by HealthForce SuperFoods

Tablet Or Pill Category: Other Combinations
Most serious interaction: Major
The interaction bottom line Most serious interaction: Major

Chlorella Manna is a dietary supplement by HealthForce SuperFoods with 3 active ingredients. Its ingredients are commonly taken for eye and vision health, skin health and acne, immune support.Based on those ingredients, 387 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Vitamin A. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of Chlorella Manna by HealthForce SuperFoods

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

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.

Chlorella Manna contains one active ingredient: vitamin A. The product also includes broken cell wall chlorella as an inactive ingredient — it's the food source base for the tablet.

Vitamin A is a fat-soluble vitamin your body uses for vision, immune function, and skin health. This product delivers it in the form of chlorella, a type of algae.

Does it work?

Couldn't assess
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
Not assessable

We hold no graded evidence for this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: nutrient-dense whole food supplement.
  • Our graded evidence for these ingredients doesn't cover that particular purpose.

The evidence supports vitamin A for treating vitamin A deficiency — that's where it's clearly effective. For oral leukoplakia (white patches inside the mouth), aging skin, measles, ulcerative colitis, and bronchopulmonary dysplasia (a lung condition in newborns), the data we hold shows possibly effective, meaning there's some supporting research but it's not conclusive.

The evidence, ingredient by ingredient Vitamin A

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.

Vitamin A is generally well tolerated at recommended doses, but here's the key: it builds up in your body because it's fat-soluble, so too much over time can become toxic. High doses can cause liver damage, dry skin, hair loss, and in rare cases, serious problems like pseudotumor cerebri, liver failure, or coma.

For pregnancy and breastfeeding, the safety rating is mixed — normal dietary amounts and recommended supplement doses are appropriate, but high-dose vitamin A (especially as retinol) can cause birth defects and should be avoided in pregnancy. Talk with your doctor or pharmacist about what's right for you if you're pregnant, planning to become pregnant, or nursing.

Side effects, ingredient by ingredient Vitamin A

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Vitamin A.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 388 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 start Chlorella Manna, check with your doctor or pharmacist if you take retinoids (Major interaction — this is the most serious), blood thinners like warfarin, tetracycline antibiotics, or medications that can stress your liver. High doses of vitamin A with any of these can cause problems.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Major medication interactions have been identified, and safety information is well characterized.

Chlorella Manna may be useful if you're treating a vitamin A deficiency or looking to support vision and immune health with a whole-food source. If you take retinoids (acne or skin medications), blood thinners, tetracycline antibiotics, or any drug that affects your liver, check your exact medications with your doctor or pharmacist before starting this product — the interaction potential is real.

Keep doses at recommended levels; don't take high-dose vitamin A supplements without guidance.

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 Nov 21, 2020.

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 Manna, straight from the product label.

Brand HealthForce SuperFoods
Net contents 1200 VeganTab(s)(TM)
Market status On market
Date entered into DSLD Nov 21, 2020
DSLD ID 239699
Product type Other Combinations
Supplement form Tablet Or Pill
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Kosher, Organic, Gluten 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 Manna by HealthForce SuperFoods, 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:
2 Vegetarian Tablet(s)
Maximum serving Sizes:
6 Vegetarian Tablet(s)
Servings per container
200
IngredientAmount% DV
Calories from Fat2 Calorie(s)--
Vitamin A500 IU10%
Protein1 Gram(s)--
Total Calories5 Calorie(s)--

Other ingredients: broken cell wall Chlorella

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

Chlorella Manna is an incredible source of full-spectrum, non-toxic, absorbable nutrients and compounds. A single-celled, green, freshwater alga, chlorella is 50-60% protein and contains all nine essential amino acids. Chlorella is the only plant on the planet that can quadruple its growth in less than one day. Chlorella Growth Factor, or CGF, is produced during photosynthesis. CGF is a potent phytonutrient comprised of amino acids, beta-glucans, nucleic acids, peptides, and polysaccharides which supports health at a cellular level. Chlorella Manna also supports detoxification with an abundant chlorophyll content and its ability to bind and potentially chelate toxins.

Broken cell wall Chlorella Source of full-spectrum, non-toxic, absorbable nutrients and compounds, including 50-60% protein

OU Pareve (Kosher)

General Statements

The HealthForce SuperFoods Edge Integrity: Grassroots, independently-owned company based on principles of service and compassion.

EcoFresh Nutrient Lock Packaging maintains the highest possible levels of nutritional and ecological integrity. 100% Post-consumer recycled paper "Hype is Nothing. substance is Everything!" Dr. Jameth Sheridan - Naturopath and Hard-Core Herbal Medicine Researcher

1200 VeganTabs (by weight)

Exclusive EcoFresh Nutrient Lock This packaging ensures potency and nutrient protection!

Not a significant source of saturated fat, trans fat, cholesterol, dietary fiber, sugars, sodium, carbohydrates

I am deeply committed to researching and developing the highest quality, most effective, life-enhancing nutritional products based on my ongoing research into life force, whole foods, enzymes, Mother Nature, and true science - with a reverence for all life. I wish you great health and happiness always. Dr. Jameth Sheridan - Naturopath and Hard-Core Herbal Medicine Researcher

Please recycle this bottle. It matters.

Formulation

Products are manufactured in FDA-registered, NSF-compliant U.S. vegan facility.

TruGanic Purity: Free of pesticides, GMOs, and irradiation; verified by actual testing.

Additionally, all products are lab tested for botanical identity, heavy metals, microbiological activity, and gluten.

We do not allow any use of fillers, binders, isolates, or flow agents.

Manufactured in low-EMF, Tachyon-enhanced facility

GF Certified Gluten-Free

Certified organic by Oregon Tilth

Manufactured in vegan facility free of gluten, peanuts, and tree nuts

FDA Disclaimer Statement

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

Seals/Symbols

USDA Organic OTCO (Oregon Tilth Certified Organic) Certified Vegan vegan.org GF Certified Gluten-Free TruGanic OU Pareve (Kosher)

Suggested/Recommended/Usage/Directions

Suggested Use: Start with 2 VeganTabs and work up to 6 VeganTabs per day, or as advised by a qualified health care professional. Chlorella is a food. It can be taken directly, or mixed with foods, such as salads or trail mixes. Suggested Adjuncts: A whole food, organic, vegan diet with emphasis on fresh raw foods, other HealthForce SuperFoods products such a Vitamineral Green and Earth Shilajit Supreme, Liver Rescue, exercise and everything else healthful! You deserve it!

See for yourself

Chlorella Manna by HealthForce SuperFoods label

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

What’s inside

The Ingredients in Chlorella Manna by HealthForce SuperFoods

These are the 3 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Vegetarian Tablet(s) Dosage formTablet Or Pill Servings per container200 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.

Vitamin A

Interacts with
387 drugs
500 IU per serving Form: Beta-Carotene

Vitamin A is an essential nutrient important for vision, skin, immune function, and growth. Most people get enough from a balanced diet, and supplemen...

Vitamin A monograph & interactions

Protein

1 Gram(s) per serving

Total Calories

5 Calorie(s) per serving

Other (inactive) ingredients: Broken cell wall Chlorella. These complete the product’s ingredient list but are not active constituents.

Interaction report

Chlorella Manna by HealthForce SuperFoods Drug Interactions

Want to check YOUR meds against Chlorella Manna?

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
387Drugs
9 Major 378 Moderate

Ingredients driving the most interactions

Vitamin A 387

Each ingredient & the kinds of drugs it affects

For each ingredient in Chlorella Manna 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.

Vitamin A4 drug types · 387 drugs

Retinoids

Concomitant use of retinoids with vitamin A supplements might produce supratherapeutic vitamin A levels.
Retinoids, which are vitamin A derivatives, could have additive toxic effects when taken with vitamin A supplements.

Likelihood Probable Evidence D
Hepatotoxic Drugs

Theoretically, taking high doses of vitamin A in combination with other potentially hepatotoxic drugs might increase the risk of liver disease.
The tolerable upper intake level (UL) is the highest level of intake that is likely to pose no risk of adverse effects. Doses of vitamin A above the UL can cause hepatotoxicity, ranging from elevated liver enzymes to liver failure.

Likelihood Possible Evidence C
Tetracycline Antibiotics

Theoretically, taking tetracycline antibiotics with high doses of vitamin A can increase the risk of pseudotumor cerebri.
Benign intracranial hypertension (pseudotumor cerebri) can occur with tetracyclines and with acute or chronic vitamin A toxicity. Case reports suggest that taking tetracyclines and vitamin A concurrently can increase the risk of this condition. Avoid high doses of vitamin A in people taking tetracyclines chronically.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, high doses of vitamin A could increase the risk of bleeding with warfarin.
Vitamin A toxicity is associated with hemorrhage and hypoprothrombinemia, possibly due to vitamin K antagonism. Advise patients taking warfarin to avoid doses of vitamin A above the tolerable upper intake level of 10,000 IU/day for adults.

Likelihood Possible Evidence D
The maker

Brand information

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

HealthForce SuperFoods

See all HealthForce SuperFoods products
Name
HealthForce SuperFoods
City
Las Vegas
State
NV
ZipCode
89126
Phone Number
(800) 748-6229
Web Address
HealthForceSuperFoods.com
Pharmacist Counseling Corner

Chlorella Manna by HealthForce SuperFoods: Common Questions

Does Chlorella Manna by HealthForce SuperFoods interact with any medications?
Yes. Based on its ingredients, Chlorella Manna has a known interaction with 387 medications, including 9 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Chlorella Manna contains 3 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.
What does vitamin A do in this product?
Vitamin A supports your vision, immune system, and skin health. It's essential for your body, though it's only needed in specific amounts — too much stored in your body can be toxic.
Is this safe to take while pregnant or breastfeeding?
Normal dietary amounts are fine, but high-dose vitamin A supplements — especially as retinol — can cause birth defects in pregnancy and should be avoided. If you're pregnant, planning pregnancy, or nursing, talk with your doctor or pharmacist about whether this product is right for you.
Can this product treat skin problems or aging?
Vitamin A has some evidence for possibly helping with aging skin and oral leukoplakia (white patches in the mouth), but the research isn't conclusive. If you're interested in using it for a specific skin condition, ask your doctor or pharmacist.
What happens if I take too much?
Vitamin A builds up in your body because it's fat-soluble. High doses can cause dry skin, hair loss, brittle nails, liver damage, and in rare cases serious problems like increased pressure in the skull, liver failure, or coma. Stick to recommended doses.
Does this contain anything besides vitamin A?
The active ingredient is vitamin A delivered through chlorella, an algae. The tablet also contains broken cell wall chlorella as an inactive ingredient — it's the base of the formulation.

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

Not sure if Chlorella Manna is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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 Manna label
Sources

Sources & How We Checked

Chlorella Manna'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 31 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.

Vitamin A 31 references
  1. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  2. Griffiths JK. The vitamin A paradox. J Pediatr 2000;137:604-7.. PubMed
  3. Hardman JG, Limbird LL, Molinoff PB, eds. Goodman and Gillman's The Pharmacological Basis of Therapeutics, 9th ed. New York, NY: McGraw-Hill, 1996.
  4. Hansten PD, Horn JR. Drug Interactions Analysis and Management. Vancouver, WA: Applied Therapeutics Inc., 1997 and updates.
  5. FDA Talk Paper. Vitamin A and birth defects (T95-56). Food and Drug Administration, U.S. Department of Health and Human Services, Rockville, MD. October 6, 1995.
  6. Russell RM. The vitamin A spectrum: from deficiency to toxicity. Am J Clin Nutr 2000;71:878-84. PubMed
  7. Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington, DC: National Academy Press, 2002.
  8. Feskanich D, Singh V, Willett WC, Colditz GA. Vitamin A intake and hip fractures among postmenopausal women. JAMA 2002;287:47-54. PubMed
  9. Melhus H, Michaelsson K, Kindmark A, et al. Excessive dietary intake of vitamin A is associated with reduced bone mineral density and increased risk for hip fracture. Ann Intern Med 1998;129:770-8. PubMed
  10. Michaelsson K, Lithell H, Vessby B, Melhus H. Serum retinol levels and the risk of fracture. N Engl J Med 2003;348:287-94.. PubMed
  11. Botterweck AA, van den Brandt PA, Goldbohm RA. Vitamins, carotenoids, dietary fiber, and the risk of gastric carcinoma: results from a prospective study after 6.3 years of follow-up. Cancer 2000;88:737-48.. DOI
  12. Meyskens FL Jr, Graham V, Chvapil M, et al. A phase I trial of beta-all-trans-retinoic acid delivered via a collagen sponge and a cervical cap for mild or moderate intraepithelial cervical neoplasia. J Natl Cancer Inst 1983;71:921-5..
  13. Hathcock JN, Hattan DG, Jenkins MY, et al. Evaluation of vitamin A toxicity. Am J Clin Nutr 1990;52:183-202.. PubMed
  14. Walters BN, Gubbay SS. Tetracycline and benign intracranial hypertension: report of five cases. Br Med J 1981;282:19-20.. PubMed
  15. Pearson MG, Littlewood SM, Bowden AN. Tetracycline and benign intracranial hypertension (letter). Br Med J 1981;282:568-9.. PubMed
  16. Azais-Braesco V, Pascal G. Vitamin A in pregnancy: requirements and safety limits. Am J Clin Nutr 2000;71:1325S-33S. PubMed
  17. Smedts HP, de Vries JH, Rakhshandehroo M, et al. High maternal vitamin E intake by diet or supplements is associated with congenital heart defects in the offspring. BJOG 2009;116:416-23. PubMed
  18. Grotto, I., Mimouni, M., Gdalevich, M., and Mimouni, D. Vitamin A supplementation and childhood morbidity from diarrhea and respiratory infections: a meta-analysis. J Pediatr 2003;142(3):297-304. PubMed
  19. Mahalanabis, D., Lahiri, M., Paul, D., Gupta, S., Gupta, A., Wahed, M. A., and Khaled, M. A. Randomized, double-blind, placebo-controlled clinical trial of the efficacy of treatment with zinc or vitamin A in infants and young children with severe acute l
  20. Long, K. Z., Montoya, Y., Hertzmark, E., Santos, J. I., and Rosado, J. L. A double-blind, randomized, clinical trial of the effect of vitamin A and zinc supplementation on diarrheal disease and respiratory tract infections in children in Mexico City, Mex
  21. Fritz, H., Kennedy, D., Fergusson, D., Fernandes, R., Doucette, S., Cooley, K., Seely, A., Sagar, S., Wong, R., and Seely, D. Vitamin A and retinoid derivatives for lung cancer: a systematic review and meta analysis. PLoS.One. 2011;6(6):e21107. PubMed
  22. Mayo-Wilson, E., Imdad, A., Herzer, K., Yakoob, M. Y., and Bhutta, Z. A. Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis. BMJ 2011;343:d5094. PubMed
  23. Mazumder S, Taneja S, Bhatia K, Yoshida S, Kaur J, Dube B, Toteja GS, Bahl R, Fontaine O, Martines J, Bhandari N; Neovita India Study Group. Efficacy of early neonatal supplementation with vitamin A to reduce mortality in infancy in Haryana, India (Neovit
  24. Baineni R, Gulati R, Delhi CK. Vitamin A toxicity presenting as bone pain. Arch Dis Child. 2017;102(6):556-8. PubMed
  25. Darlow BA, Graham PJ, Rojas-Reyes MX. Vitamin A supplementation to prevent mortality and short- and long-term morbidity in very low birth weight infants. Cochrane Database Syst Rev. 2016;(8):CD000501. PubMed
  26. Haider BA, Sharma R, Bhutta ZA. Neonatal vitamin A supplementation for the prevention of mortality and morbidity in term neonates in low and middle income countries. Cochrane Database Syst Rev. 2017;2:CD006980. PubMed
  27. Mohammad YM, Raslan IR, Al-Hussain FA. Idiopathic Intracranial Hypertension Induced by Topical Application of Vitamin A. J Neuroophthalmol. 2016;36(4):412-3. PubMed
  28. Masnadi Shirazi K, Nikniaz Z, Masnadi Shirazi A, Rohani M. Vitamin A supplementation decreases disease activity index in patients with ulcerative colitis: A randomized controlled clinical trial. Complement Ther Med. 2018 Dec;41:215-219. PubMed
  29. Ding Y, Hu P, Yang Y, et al. Impact of maternal daily oral low-dose vitamin A supplementation on the mother-infant pair: a randomised placebo-controlled trial in China. Nutrients 2021;13(7):2370. PubMed
  30. Knapik JJ, Hoedebecke SS. Vitamin A and bone fractures: systematic review and meta-analysis. J Spec Oper Med 2021;21(2):100-7. PubMed
  31. Imdad A, Mayo-Wilson E, Haykal MR, et al. Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age. Cochrane Database Syst Rev 2022;3(3):CD008524. PubMed

See these in context on the Vitamin A 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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