Lecithin Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Lecithin 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
Lecithin is a dietary supplement by Life Extension with 1 active ingredient. Its ingredients are commonly taken for high cholesterol, liver health, brain and memory support.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of Lecithin by Life Extension
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.
What’s inside
Full disclosure
This product contains one active ingredient: lecithin granules. Lecithin is a naturally occurring fatty substance found in foods like eggs and soybeans.
The inactive ingredient tricalcium phosphate is used as a filler.
Does it work?
Couldn't assess
The evidence for lecithin is mixed. For Alzheimer disease, it's rated likely ineffective.
For age-related cognitive decline, anxiety, bipolar disorder, and a condition called TPN-associated hepatic steatosis (liver fat buildup related to intravenous nutrition), we don't have enough reliable evidence to say whether it works or doesn't. If you're considering this for a specific health goal, talk to your doctor or pharmacist about whether the evidence supports its use for your situation.
How safe is it?
Well-documented data
Lecithin granules are generally well tolerated by mouth. The most common side effects are mild digestive ones—abdominal pain, diarrhea, a feeling of fullness, and nausea.
If you have an egg or soy allergy, lecithin can occasionally cause allergic skin reactions. The safety data shows lecithin is likely safe during pregnancy and lactation.
Meds to double-check
No known interactions
No interactions are documented for lecithin in our data. You're clear on the medication interaction front, but always feel free to double-check with your pharmacist if you're taking something new.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. No medication interactions are currently documented, and safety information is well characterized.
Lecithin is a well-tolerated supplement with no documented medication interactions. It may be worth considering if your healthcare provider recommends it, though evidence for most claimed uses is either weak or lacking.
If you have a soy or egg allergy, watch for skin reactions. Talk to your pharmacist if you have questions about whether it's right for your individual needs.
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 May 21, 2025.
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
General information
Key facts about Lecithin, straight from the product label.
| Brand | Life Extension |
|---|---|
| Barcode (UPC) | 737870020165 |
| Net contents | 454 Gram(s); 1 Pound(s); 16 Ounce(s) |
| Market status | On market |
| Date entered into DSLD | May 21, 2025 |
| DSLD ID | 328511 |
| Product type | Fat/fatty Acid |
| Supplement form | Powder |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Vegetarian, Adult (18 - 50 Years), Gluten Free |
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 Lecithin by Life Extension, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Calories | 50 Calorie(s) | -- |
| Total Carbohydrates | 1 Gram(s) | 1% |
| Total Fat | 5 Gram(s) | 6% |
| Saturated Fat | 1.5 Gram(s) | 8% |
| Lecithin Granules | 10 Gram(s) | -- |
Other ingredients: Tricalcium Phosphate
Tap any ingredient to jump to its full detail below.
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.
General Statements
Typical values: Phosphatidylcholine 2.3 g Phosphatidylethanolamine 2.0 g Phosphatidylinositol 1.4 g
Scan for product info
Precautions
Read the entire label and follow the directions carefully.
Warnings: Keep out of reach of children.
Do not exceed recommended dose. Do not purchase if outer seal is damaged.
Consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.
Contains soybeans.
To report a serious adverse event or obtain product information, contact 1-866-280-2852.
Suggested/Recommended/Usage/Directions
Directions: Take one (1) heaping tablespoon daily, or as recommended by a healthcare practitioner. Can be sprinkled on cereal or mixed in juices, soups, or salad dressings.
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.
Formula
97% Phosphatides
Formulation
De-oiled Gluten free Non-GMO Le Certified
Promotes healthy cell structure
Vegetarian
Density may vary from lot to lot.
Seals/Symbols
Non-GMO Le Certified
FDA Statement of Identity
Dietary Supplement
Storage
Store tightly closed in a cool, dry place.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Lecithin by Life Extension label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Lecithin by Life Extension
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size11 Gram(s) Dosage formPowder Servings per container41 Amounts shown are per serving.
Lecithin Granules
No knowninteractions
Lecithin is a natural fatty substance found in foods and made by the body that is widely used as a supplement and food emulsifier. Evidence supporting...
Lecithin Granules monograph & interactionsOther (inactive) ingredients: Tricalcium Phosphate. These complete the product’s ingredient list but are not active constituents.
Lecithin by Life Extension Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Lecithin. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for Lecithin, from the product label.
Life Extension
See all Life Extension products- Name
- Quality Supplements and Vitamins, Inc.
- City
- Ft. Lauderdale
- State
- FL
- ZipCode
- 33309
- Phone Number
- 1-866-280-2852
- Web Address
- LifeExtension.com
Lecithin by Life Extension: Common Questions
Does Lecithin by Life Extension interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take this if I'm pregnant or breastfeeding?
What are the side effects?
Does lecithin actually help with memory or thinking?
Can I take this with my medications?
What's in this product besides lecithin?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Lecithin is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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.
The Full Monographs Behind Lecithin’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Lecithin'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 9 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.
Lecithin 9 references
- Buchman AL, Dubin M, Jenden D, et al. Lecithin increases plasma free choline and decreases hepatic steatosis in long-term total parenteral nutrition patients. Gastroenterology 1992;102:1363-70.
- Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline (2000). Washington, DC: National Academy Press, 2000. Available at: http://b
- Chatellier G, Lacomblez L. Tacrine (tetrahydroaminoacridine; THA) and lecithin in senile dementia of the Alzheimer type: a multicentre trial. Groupe Francais d'Etude de la Tetrahydroaminoacridine. BMJ 1990;300:495-9.
- Gelenberg AJ, Dorer DJ, Wojcik JD, et al. A crossover study of lecithin treatment of tardive dyskinesia. J Clin Psychiatry 1990;51:149-53.
- Little A, Levy R, Chuaqui-Kidd P, Hand D. A double-blind, placebo controlled trial of high-dose lecithin in Alzheimer's disease. J Neurol Neurosurg Psychiatry 1985;48:736-42. PubMed
- Palm M, Moneret-Vautrin DA, Kanny G, et al. Food allergy to egg and soy lecithins. Allergy 1999;54:1116-7. PubMed
- Drachman DA, Glosser G, Fleming P, et al. Memory decline in the aged: treatment with lecithin and physostigmine. Neurology 1982;32:944-50. PubMed
- Gelenberg, A. J., Doller-Wojcik, J. C., and Growdon, J. H. Choline and lecithin in the treatment of tardive dyskinesia: preliminary results from a pilot study. Am J Psychiatry 1979;136(6):772-776. PubMed
- Electronic Code of Federal Regulations. Title 21, Chapter 1, Subchapter B, Part 184: Direct food substances affirmed as Generally Recognized as Safe. Subpart B - listing of specific substances affirmed as GRAS. Sec. 184.1400 Lecithin. Available at: https:
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