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Dietary supplement

DIM 150 mg Ingredients & Drug Interactions

by OL Olympian Labs Performance Sports Nutrition

DIM 150 mg label
See full label image
Capsule 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 DIM 150 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

DIM 150 mg is a dietary supplement by OL Olympian Labs Performance Sports Nutrition with 1 active ingredient. Its ingredients are commonly taken for estrogen/hormone balance, acne and hormonal skin issues, prostate health support.Based on those ingredients, 269 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are DIM. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against DIM 150 mg by OL Olympian Labs Performance Sports Nutrition

Ask about any prescription or over-the-counter medication and we check it for interactions with DIM 150 mg by OL Olympian Labs Performance Sports Nutrition — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of DIM 150 mg by OL Olympian Labs Performance Sports Nutrition

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 23, 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: DIM (diindolylmethane), 150 mg per capsule. DIM is a compound found naturally in cruciferous vegetables like broccoli and cabbage.

The capsule also contains inactive ingredients—vegetarian capsule material, rice flour, microcrystalline cellulose, silicon dioxide, and ascorbyl palmitate—which serve as fillers and stabilizers.

Does it work?

Not established
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 established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Diindolylmethane's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: testosterone protection through estrogen modulation.
  • We looked for evidence on: Benign prostatic hyperplasia (BPH), Prostate cancer, hormonal balance, testosterone support.
  • The closest evidence on file: Diindolylmethane is rated "Insufficient Reliable Evidence To Rate" for Benign prostatic hyperplasia (BPH) (Natural Medicines).
  • Also on file: Diindolylmethane is rated "Insufficient Reliable Evidence To Rate" for Prostate cancer.

We hold no data showing DIM is effective for the conditions it's marketed for—benign prostate enlargement, breast cancer, colorectal cancer, cervical dysplasia, or breast pain (mastalgia). The evidence for each of these is insufficient to rate.

That doesn't mean it doesn't work; it means the research we have isn't strong enough to make a claim either way.

The evidence, ingredient by ingredient Diindolylmethane

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.

DIM is generally well tolerated in short-term studies, but how safe it is over the long haul isn't well established. The most common side effects are mild—diarrhea, gas, headache, nausea, rash, and vomiting.

A rare serious rash called DRESS (drug rash with eosinophilia and systemic symptoms) has been reported. One case of ischemic stroke (clot in the brain) was reported in a woman taking DIM along with several other supplements, but she had multiple stroke risk factors, so it's unclear if DIM played a role.

Because DIM can affect hormones and long-term safety isn't clear, the safety data advise against it during pregnancy. There isn't enough safety information to know whether it's okay while breastfeeding—talk with your doctor or pharmacist for personalized advice.

Side effects, ingredient by ingredient Diindolylmethane

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 — Diindolylmethane.
  • The most serious interaction on file is rated Moderate.
  • For scale: 269 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 with your doctor or pharmacist before taking this if you're on estrogens (like birth control pills or hormone replacement therapy)—DIM might change how well they work. Also flag any diuretics (water pills) you take, and any medications processed by the liver enzyme CYP1A2 (a category that includes some antidepressants, asthma drugs, and others).

No interactions are documented for the inactive ingredients.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

DIM may be right for someone interested in its potential hormonal or cancer-prevention effects, but the evidence for those uses is thin. If you take estrogens (birth control or hormone replacement), diuretics, or medications your liver breaks down quickly, you'll want to talk it over with your doctor or pharmacist before starting this product.

Pregnant people should avoid it. For anyone else, the main caution is that long-term safety data are lacking.

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 Jul 25, 2018.

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 DIM 150 mg, straight from the product label.

Brand OL Olympian Labs Performance Sports Nutrition
Barcode (UPC) 710013001085
Net contents 30 Vegetarian Capsule(s)
Market status On market
Date entered into DSLD Jul 25, 2018
DSLD ID 175799
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), No Allergies, 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 DIM 150 mg by OL Olympian Labs Performance Sports Nutrition, 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 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
30
UPC/BARCODE
710013001085
IngredientAmount% DV
DIM150 mg--

Other ingredients: Vegetarian Capsule, Rice Flour, Microcrystalline Cellulose, Silicon Dioxide, Ascorbyl Palmitate

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.
General Statements

Men have estrogen too (not just women), and the more your body has can actually decrease your testosterone levels. Diindolymethane (DIM) converts strong and damaging forms of estrogen into weaker forms so your testosterone is protected and your balance of testosterone to estrogen ratio is in check. Research shows higher levels of testosterone and low levels of estrogen have been linked to lean muscle mass, an efficient fat-burning metabolism, and low abdominal fat. Olympian Labs, Inc. products are made with the highest quality ingredients and manufactured according to current Good Manufacturing Practices (cGMP).

Testosterone protector Lean muscle mass support Fat-burning metabolism support Test booster Fat burner

We do not use ingredients that were produced using modern biotechnology

Made in USA

Precautions

Caution: If you are pregnant or nursing, have a medical condition, or are taking medication, consult your healthcare professional before using this or any other nutritional supplement.

Discontinue use if allergic reaction occurs.

Keep out of reach of children.

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.

General

REV 10-24-16

Storage

Store in a cool, dry place.

Formula

DIM 150 mg per serving

Formulation

Gluten free Allergen free Non GMO

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Daily Suggested Use: As a dietary supplement, take one (1) capsule once to twice daily, or as directed by a healthcare professional.

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

See for yourself

DIM 150 mg by OL Olympian Labs Performance Sports Nutrition label

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

DIM 150 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 DIM 150 mg by OL Olympian Labs Performance Sports Nutrition

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

Serving size1 Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.

DIM

Interacts with
269 drugs
150 mg per serving

Diindolylmethane (DIM) is a compound made when your body digests cruciferous vegetables, and it is sold as a supplement mainly for hormone balance and...

DIM monograph & interactions

Other (inactive) ingredients: Vegetarian Capsule, Rice Flour, Microcrystalline Cellulose, Silicon Dioxide, Ascorbyl Palmitate. These complete the product’s ingredient list but are not active constituents.

Interaction report

DIM 150 mg by OL Olympian Labs Performance Sports Nutrition Drug Interactions

Want to check YOUR meds against DIM 150 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
269Drugs
116 Moderate 153 Minor

Ingredients driving the most interactions

DIM 269

Individual Drug Interactions

The ingredients in DIM 150 mg interact with 269 drugs. Click any drug to see the details.

1 of the 1 ingredient in DIM 150 mg interact with drugs. Each result below shows which ingredient is responsible. DIM

Each ingredient & the kinds of drugs it affects

For each ingredient in DIM 150 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.

DIM3 drug types · 269 drugs

Diuretic Drugs

Theoretically, diindolylmethane might increase the risk of hyponatremia if used with sodium-depleting diuretics.
Large doses of diindolylmethane (600 mg daily) have been associated with two cases of asymptomatic hyponatremia in clinical research.

Likelihood Possible Evidence B
Estrogens

Theoretically, diindolylmethane might increase or decrease the effects of estrogens.
Diindolylmethane might have mild estrogenic or antiestrogenic effects. Theoretically, large amounts of diindolylmethane might interfere with hormone replacement therapy.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, diindolylmethane might lower serum levels of CYP1A2 substrates.
In vitro evidence suggests that diindolylmethane can induce CYP1A2. Theoretically, it might increase metabolism of CYP1A2 substrates and lower serum concentrations. This interaction has not been reported in humans.

Likelihood Unlikely Evidence D
DIM full monograph & interactions
The maker

Brand information

Manufacturer and brand details for DIM 150 mg, from the product label.

OL Olympian Labs Performance Sports Nutrition

See all OL Olympian Labs Performance Sports Nutrition products
Name
Olympian Labs, Inc.
City
Phoenix
State
AZ
ZipCode
85027
Phone Number
1-800-473-5883
Web Address
www.olympianlabs.com
Pharmacist Counseling Corner

DIM 150 mg by OL Olympian Labs Performance Sports Nutrition: Common Questions

Does DIM 150 mg by OL Olympian Labs Performance Sports Nutrition interact with any medications?
Yes. Based on its ingredients, DIM 150 mg has a known interaction with 269 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
DIM 150 mg 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 DIM if I'm on birth control?
Not without checking first. DIM may shift how your body handles estrogens, so it could make your birth control stronger or weaker. Talk with your doctor or pharmacist before adding it.
What's DIM actually for?
DIM comes from cruciferous vegetables and is studied for benign prostate growth, breast cancer, colorectal cancer, cervical dysplasia, and breast pain. We don't have solid evidence it works for any of these yet.
What are the side effects?
Most common are diarrhea, gas, headache, nausea, rash, and vomiting. A rare serious rash (DRESS) has been reported. One stroke case occurred in a woman taking it with other supplements, but she had multiple stroke risk factors.
Is it safe during pregnancy?
No. Because DIM can affect hormones, the safety data advise against it in pregnancy.
What about breastfeeding?
There isn't enough safety information available. Talk with your doctor or pharmacist about whether it's right for you.
How long is it safe to take?
Short-term safety is okay, but how safe it is long-term isn't well established. That's something to discuss with your doctor if you're thinking of taking it regularly.

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

Not sure if DIM 150 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.

DIM 150 mg label
Go deeper

The Full Monographs Behind DIM 150 mg’s Ingredients

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

Herb & supplement monograph

Diindolylmethane

Interacts with 269 drugs

Diindolylmethane (DIM) is a compound made when your body digests cruciferous vegetables, and it is sold as a supplement mainly for hormone balance and cancer prevention. Although early lab s...

Read the full Diindolylmethane monograph →
Sources

Sources & How We Checked

DIM 150 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 14 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.

Diindolylmethane 14 references
  1. Natl Inst Health, Natl Inst Environmental Health Sci. Indole-3-carbinol. Available at: http://ntp-server.niehs.nih.gov.
  2. Balk JL. Indole-3-carbinol for cancer prevention. Altern Med Alert 2000; 3:105-7.
  3. Riby JE, Chang GHF, Firestone GL, Bjeldanes LF. Ligand-independent activation of estrogen receptor function by 3,3'-diindolylmethane in human breast cancer cells. Biochem Pharmacol 2000;60:167-77. PubMed
  4. Lake BG, Tredger JM, Renwick AB, et al. 3'3-diindolylmethane induces CYP1A2 in cultured precision-cut human liver slices. Xenobiotica 1998;28:803-11. PubMed
  5. Dalessandri, K. M., Firestone, G. L., Fitch, M. D., Bradlow, H. L., and Bjeldanes, L. F. Pilot study: effect of 3,3'-diindolylmethane supplements on urinary hormone metabolites in postmenopausal women with a history of early-stage breast cancer. Nutr Canc PubMed
  6. Reed, G. A., Arneson, D. W., Putnam, W. C., Smith, H. J., Gray, J. C., Sullivan, D. K., Mayo, M. S., Crowell, J. A., and Hurwitz, A. Single-dose and multiple-dose administration of indole-3-carbinol to women: pharmacokinetics based on 3,3'-diindolylmetha
  7. Reed, G. A., Sunega, J. M., Sullivan, D. K., Gray, J. C., Mayo, M. S., Crowell, J. A., and Hurwitz, A. Single-dose pharmacokinetics and tolerability of absorption-enhanced 3,3'-diindolylmethane in healthy subjects. Cancer Epidemiol.Biomarkers Prev. 2008; PubMed
  8. Del Priore G., Gudipudi, D. K., Montemarano, N., Restivo, A. M., Malanowska-Stega, J., and Arslan, A. A. Oral diindolylmethane (DIM): pilot evaluation of a nonsurgical treatment for cervical dysplasia. Gynecol.Oncol. 2010;116(3):464-467. PubMed
  9. Heath, E. I., Heilbrun, L. K., Li, J., Vaishampayan, U., Harper, F., Pemberton, P., and Sarkar, F. H. A phase I dose-escalation study of oral BR-DIM (BioResponse 3,3'- Diindolylmethane) in castrate-resistant, non-metastatic prostate cancer. Am.J.Transl.R
  10. Jellinck, P. H., Forkert, P. G., Riddick, D. S., Okey, A. B., Michnovicz, J. J., and Bradlow, H. L. Ah receptor binding properties of indole carbinols and induction of hepatic estradiol hydroxylation. Biochem.Pharmacol. 3-9-1993;45(5):1129-1136. PubMed
  11. Bui PV, Moualla M, Upson DJ. A Possible Association of Diindolylmethane with Pulmonary Embolism and Deep Venous Thrombosis. Case Rep Med. 2016;2016:7527098. PubMed
  12. Castañon A, Tristram A, Mesher D, Powell N, Beer H, Ashman S, Rieck G, Fielder H, Fiander A, Sasieni P. Effect of diindolylmethane supplementation on low-grade cervical cytological abnormalities: double-blind, randomised, controlled trial. Br J Cancer. 20 PubMed
  13. Le TM, Sanders CJ, van de Corput L, van Erpecum KJ, Röckmann H. Drug rash with eosinophilia and systemic symptoms caused by the dietary supplement diindolylmethane. J Allergy Clin Immunol Pract. 2016 Jan-Feb;4(1):175-6. PubMed
  14. Pence ST, Mehta K, Crum-Bailey J. The Serious Side of Supplements: An Ischemic Stroke in a Healthy 38-year-old Female. Mil Med 2022. PubMed

See these in context on the Diindolylmethane 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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