Major interaction on record — check this product against your medications before combining. Check your meds →
Dietary supplement

Green Veggie Complex Ingredients & Drug Interactions

by Bronson

Green Veggie Complex label
See full label image
Tablet Or Pill Category: Other Combinations
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Green Veggie Complex 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: Major

Green Veggie Complex is a dietary supplement by Bronson with 7 active ingredients. Its ingredients are commonly taken for high cholesterol, digestive complaints, menopausal symptoms.Based on those ingredients, 790 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Alfalfa, Spirulina, Broccoli. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Green Veggie Complex by Bronson

Ask about any prescription or over-the-counter medication and we check it for interactions with Green Veggie Complex by Bronson — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Green Veggie Complex by Bronson

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 11, 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 7 of its 7 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

Green Veggie Complex contains 7 active plant-based ingredients: alfalfa, barley grass, spinach leaf extract, kelp, spirulina, wheat grass, and broccoli. These are whole-food concentrates and extracts chosen for their nutrient density and traditional use in vegetable supplements.

The product also contains inactive ingredients (dicalcium phosphate, microcrystalline cellulose, croscarmellose sodium, stearic acid, magnesium stearate, silicon dioxide, hydroxypropyl methylcellulose, and polyethylene glycol) that serve as binders and fillers to form the tablet.

Does it work?

Strong 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
Strong

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: Green superfoods antioxidant and digestive support.
  • We looked for evidence on: Athletic performance, Cardiovascular disease (CVD), Cognitive function, Coronary heart disease (CHD), Diabetes, Dyslipidemia — and 4 related terms.
  • The strongest evidence on file: Barley is rated "Likely Effective" for Coronary heart disease (CHD) (Natural Medicines).
  • Also on file: Barley is rated "Likely Effective" for Hypercholesterolemia.
  • Also on file: Blue-green Algae is rated "Possibly Effective" for Hypertension.

The evidence for these ingredients is mixed. Barley grass shows likely effectiveness for high cholesterol and heart disease prevention based on clinical research.

For the other ingredients, the data we hold shows insufficient reliable evidence: alfalfa's usefulness for blood sugar control, cholesterol, or digestive comfort hasn't been established. Spinach extract, kelp, spirulina, wheat grass, and broccoli all lack strong evidence for their marketed claims in our current data, though broccoli shows possible effectiveness against colorectal cancer.

If you're considering this product for a specific health goal, talk with your pharmacist about what the research actually supports.

The evidence, ingredient by ingredient Alfalfa Barley Spinach Ascophyllum Nodosum Blue-green Algae Couch Grass Broccoli

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 6 of the 7 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 7 of 7.
  • General safety write-ups exist for 7 of 7.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Most of these ingredients are generally well tolerated as foods. Alfalfa leaf commonly causes mild digestive upset—bloating, gas, diarrhea, and abdominal discomfort—though a lupus-like syndrome has been reported rarely with long-term use.

Barley grass can cause bloating and flatulence, and may trigger allergic reactions or asthma in sensitive individuals because it contains gluten. Spinach is safe as a food and well tolerated.

Spirulina and kelp seem well tolerated but quality varies; some products carry contamination with toxins or heavy metals. Broccoli extracts at high doses may cause loose stools, diarrhea, and cramping.

For pregnancy: alfalfa is possibly unsafe due to its estrogen-like activity. Barley grass, kelp, and spirulina lack adequate safety data—barley and broccoli as foods are fine in normal amounts, but concentrated supplements aren't well studied.

Wheat grass and spinach as foods are safe; only kelp and spirulina should be avoided during breastfeeding due to contamination risk and iodine passing into milk. Barley and wheat grass also lack sufficient breastfeeding safety data.

Side effects, ingredient by ingredient Alfalfa Barley Spinach Ascophyllum Nodosum Blue-green Algae Couch Grass Broccoli

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?
  • 6 of the 7 matched ingredients can interact with medications — Alfalfa, Spinach, Barley, Blue-green Algae, Broccoli, among others.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; diabetes medications.
  • For scale: 790 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.

Stop and check before taking this if you use any of the following: warfarin or other blood thinners (alfalfa and spinach can reduce their effect); diabetes medications (alfalfa, spinach, and spirulina may lower blood sugar further); thyroid hormones or antithyroid drugs (kelp's iodine can interfere); amiodarone (kelp can raise iodine levels); birth control pills or hormone therapy (alfalfa's estrogen-like compounds may reduce effectiveness); immune-suppressing drugs (alfalfa and spirulina may interfere); light-sensitizing drugs like doxycycline (alfalfa may worsen photosensitivity); or drugs broken down by your liver's CYP1A2 or CYP2A6 enzymes, such as theophylline (broccoli may reduce their levels). No interactions are documented for wheat grass in our data.

Check your own medication Run your meds through the checker above

The bottom line

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

If you take warfarin, thyroid drugs, diabetes medications, or immune suppressants, check with your pharmacist before starting this—the interactions are real and could affect how your drugs work. Barley grass may help cholesterol and heart health, but most other health claims lack strong evidence.

The product is generally well tolerated, though mild digestive upset is common. Talk to your pharmacist about whether it fits your health goals and medication regimen.

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

Assessment coverage: 7 of 7 active ingredients 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 Green Veggie Complex, straight from the product label.

Brand Bronson
Barcode (UPC) 716563440015
Net contents 120 Tablet(s)
Market status On market
Date entered into DSLD Dec 18, 2021
DSLD ID 257509
Product type Other Combinations
Supplement form Tablet Or Pill
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
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 Green Veggie Complex by Bronson, 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 Tablet(s)
Maximum serving Sizes:
2 Tablet(s)
Servings per container
60
UPC/BARCODE
716563440015
IngredientAmount% DV
Alfalfa255 mg--
Barley Grass340 mg--
Spinach leaf extract255 mg--
Kelp255 mg--
Spirulina500 mg--
Wheat Grass340 mg--
Broccoli255 mg--

Other ingredients: Dicalcium Phosphate, Microcrystalline Cellulose, Croscarmellose Sodium, Stearic Acid, Magnesium Stearate, Silicon Dioxide, Hydroxypropyl Methylcellulose, Polyethylene Glycol

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

Since 1960 Nutrition+

Discover the Bronson difference To reorder: www.bronsonvitamins.com

Formula

Green superfoods antioxidant formula Seven greens and algae, including: spirulina, wheat grass, and spinach

120 count Nutrient-rich With broccoli & kelp

Suggested/Recommended/Usage/Directions

Take 1x daily

Directions: As a dietary supplement for adults, take 2 tablets daily or as directed by a healthcare professional.

FDA Statement of Identity

Dietary Supplement

Formulation

Digestive support

Precautions

Contains: Wheat

Warning: Consult a healthcare professional before taking this product if you are pregnant or nursing.

Keep out of reach of children.

Storage

Store at room temperature. Protect from light.

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.

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

See for yourself

Green Veggie Complex by Bronson label

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

Green Veggie Complex 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 Green Veggie Complex by Bronson

These are the 7 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Tablet(s) Dosage formTablet Or Pill Servings per container60 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.

Alfalfa

Interacts with
583 drugs
255 mg per serving

Alfalfa is a nutrient-rich legume that people use for high cholesterol, menopause symptoms, and general wellness, but solid human evidence for most of...

Alfalfa monograph & interactions

Barley Grass

Interacts with
1 drug
340 mg per serving

Barley is a nutritious whole grain that is a good source of soluble fiber called beta-glucan, which has solid evidence for modestly lowering LDL ('bad...

Barley Grass monograph & interactions

Spinach leaf extract

Interacts with
88 drugs
255 mg per serving

Spinach is a nutrient-dense leafy green that is a healthy part of a balanced diet, providing vitamins, minerals, fiber, and antioxidants. While it is...

Spinach leaf extract monograph & interactions

Kelp

Interacts with
22 drugs
255 mg per serving

Ascophyllum nodosum (often sold as bladderwrack or brown seaweed) is a nutrient-rich algae that people use for weight, blood sugar, and thyroid suppor...

Kelp monograph & interactions

Spirulina

Interacts with
327 drugs
500 mg per serving

Blue-green algae are nutrient-rich aquatic microorganisms (such as spirulina and Klamath Lake algae) taken as a supplement for energy, nutrition, and...

Spirulina monograph & interactions

Wheat Grass

No known
interactions
340 mg per serving

Couch grass is a common lawn weed whose rhizome has long been used in traditional European herbal medicine, mainly for urinary and bladder complaints....

Wheat Grass monograph & interactions

Broccoli

Interacts with
187 drugs
255 mg per serving

Broccoli is a nutritious cruciferous vegetable rich in fiber, vitamins, and plant compounds like sulforaphane that have drawn scientific interest for...

Broccoli monograph & interactions

Other (inactive) ingredients: Dicalcium Phosphate, Microcrystalline Cellulose, Croscarmellose Sodium, Stearic Acid, Magnesium Stearate, Silicon Dioxide, Hydroxypropyl Methylcellulose, Polyethylene Glycol. These complete the product’s ingredient list but are not active constituents.

Interaction report

Green Veggie Complex by Bronson Drug Interactions

Want to check YOUR meds against Green Veggie Complex?

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
790Drugs
2 Major 788 Moderate

Ingredients driving the most interactions

Alfalfa 583
Spirulina 327
Broccoli 187
Spinach leaf extract 88
Kelp 22

Individual Drug Interactions

The ingredients in Green Veggie Complex interact with 790 drugs. Click any drug to see the details.

6 of the 7 ingredients in Green Veggie Complex interact with drugs. Each result below shows which ingredient is responsible. Alfalfa Spirulina Broccoli Spinach leaf extract Kelp Barley Grass

Each ingredient & the kinds of drugs it affects

For each ingredient in Green Veggie Complex with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Alfalfa6 drug types · 583 drugs

Warfarin (Coumadin)

Theoretically, alfalfa might reduce the anticoagulant activity of warfarin.
Alfalfa contains a large amount of vitamin K. This could theoretically interfere with the activity of warfarin.

Likelihood Probable Evidence D
Antidiabetes Drugs

Theoretically, alfalfa might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Animal research suggests that alfalfa decreases blood sugar in diabetic mice. Also, in one case report, a diabetic patient experienced hypoglycemia after consuming alfalfa extract. Monitor blood glucose levels closely. Dose adjustments might be necessary.

Likelihood Possible Evidence D
Contraceptive Drugs

Theoretically, alfalfa might interfere with the activity of contraceptive drugs.
Alfalfa contains coumestrol, a phytoestrogen, and isoflavonoids, which have estrogenic effects.

Likelihood Possible Evidence D
Estrogens

Theoretically, alfalfa might interfere with hormone therapy.
Alfalfa contains coumestrol, a phytoestrogen, and isoflavonoids, which have estrogenic effects.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, alfalfa might decrease the efficacy of immunosuppressive therapy.
In vitro research and human case reports suggest that alfalfa may have immunostimulant effects.

Likelihood Possible Evidence D
Photosensitizing Drugs

Theoretically, concomitant use of alfalfa with photosensitizing drugs might have additive effects.
Animal research suggests that excessive doses of alfalfa may increase photosensitivity, possibly due to its chlorophyll content. It is unclear if this effect would be clinically relevant in humans.

Likelihood Possible Evidence D
Alfalfa full monograph & interactions

Spirulina3 drug types · 327 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, spirulina blue-green algae might increase the risk of bleeding if used with other anticoagulant or antiplatelet drugs. However, this is unlikely.
Spirulina blue-green algae have shown antiplatelet and anticoagulant effects in vitro. However, one preliminary study in 24 patients receiving spirulina blue-green algae 2.3 grams daily for 2 weeks showed no effect on platelet activation or measures of clotting time.

Likelihood Unlikely Evidence D
Antidiabetes Drugs

Theoretically, taking blue-green algae with antidiabetes drugs might increase the risk of hypoglycemia.
Human research shows that spirulina blue-green algae can have hypoglycemic effects in patients with diabetes, at least some of whom were using antidiabetes drugs. However, blue-green algae does not seem to improve glycated hemoglobin (HbA1c) levels in patients with diabetes. A meta-analysis of animal studies also suggests that spirulina blue-green algae have hypoglycemic effects.

Likelihood Possible Evidence B
Immunosuppressants

Theoretically, concurrent use of blue-green algae might interfere with immunosuppressive therapy.
Blue-green algae have been shown to stimulate the immune system.

Likelihood Possible Evidence D
Spirulina full monograph & interactions

Broccoli2 drug types · 187 drugs

Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, broccoli might reduce the levels and effects of drugs metabolized by CYP1A2.
Pharmacokinetic research in humans shows that eating 500 grams of fresh broccoli daily for 6-12 days can increase CYP1A2 activity by 10% to 200%. Induction of CYP1A2 activity by broccoli is attributed to its glucosinolate constituents.

Likelihood Possible Evidence B
Cytochrome P450 2A6 (Cyp2A6) Substrates

Theoretically, broccoli might reduce the levels and effects of drugs metabolized by CYP2A6.
Pharmacokinetic research in humans shows that eating 500 grams of broccoli daily for 6 days increases CYP2A6 activity by 135% to 550%. Induction of CYP2A6 activity is attributed to its glucosinolate constituents.

Likelihood Possible Evidence B
Broccoli full monograph & interactions

Spinach leaf extract2 drug types · 88 drugs

Antidiabetes Drugs

There are claims that spinach leaves have hypoglycemic effects. Evidence from clinical research suggests that consumption of a spinach-rich meal reduces post-meal blood glucose levels. Theoretically, spinach might have additive effects with antidiabetes drugs and increase the risk of hypoglycemia. Monitor blood glucose levels closely. Dose adjustments might be necessary. Some antidiabetes drugs include glimepiride (Amaryl), glyburide (DiaBeta, Glynase PresTab, Micronase), insulin, pioglitazone (Actos), rosiglitazone (Avandia), and others.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Spinach contains vitamin K, which can interfere with the activity of warfarin.
In human research, although eating spinach with one meal does not result in coagulation test results outside the therapeutic range, daily consumption for one week necessitates dose adjustment of warfarin. Individuals using anticoagulants should consume a consistent daily amount of spinach to maintain the effect of anticoagulant therapy.

Likelihood Possible Evidence D
Spinach leaf extract full monograph & interactions

Kelp3 drug types · 22 drugs

Amiodarone (Cordarone)

Theoretically, combining Ascophyllum nodosum with amiodarone might cause excessively high iodine levels.
Ascophyllum nodosum contains iodine, although the bioavailability of iodine from Ascophyllum nodosum is lower than that of potassium iodide. Amiodarone contains 37.3% iodine and can increase iodine levels. Concomitant use might increase the risk of having excessive iodine levels and adversely affecting thyroid function. Monitor thyroid function.

Likelihood Probable Evidence D
Antithyroid Drugs

Due to its iodine content, Ascophyllum nodosum might alter the effects of antithyroid drugs.
Ascophyllum nodosum contains iodine, although the bioavailability of iodine from Ascophyllum nodosum is lower than that of potassium iodide. Iodine in high doses has been reported to cause both hyperthyroidism and hypothyroidism, depending on the individual's past medical history. Taking Ascophyllum nodosum while using antithyroid drugs could alter the effects of the antithyroid drugs.

Likelihood Possible Evidence D
Thyroid Hormone

Due to its iodine content, Ascophyllum nodosum might alter the effects of thyroid hormone.
Ascophyllum nodosum contains iodine, although the bioavailability of iodine from Ascophyllum nodosum is lower than that of potassium iodide. Iodine in high doses has been reported to cause both hyperthyroidism and hypothyroidism, depending on the individual's past medical history. Taking Ascophyllum nodosum while using thyroid hormone could alter the effects of thyroid hormone.

Likelihood Possible Evidence D
Kelp full monograph & interactions

Barley Grass1 drug type · 1 drug

Triclabendazole (Egaten)

Theoretically, barley might decrease the clinical effects of triclabendazole.
Animal research suggests that a diet supplemented with barley can reduce the bioavailability of triclabendazole when taken concomitantly. This effect has not been shown in humans.

Likelihood Possible Evidence D
Barley Grass full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Green Veggie Complex, from the product label.

Bronson

Name
Bronson Laboratories
Street Address
350 South 400 West #102
City
Lindon
State
UT
ZipCode
84042
Phone Number
1-800-235-3200
Web Address
www.bronsonvitamins.com
Pharmacist Counseling Corner

Green Veggie Complex by Bronson: Common Questions

Does Green Veggie Complex by Bronson interact with any medications?
Yes. Based on its ingredients, Green Veggie Complex has a known interaction with 790 medications, including 2 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Green Veggie Complex contains 7 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.
Will this help my cholesterol or heart health?
Barley grass in this product shows likely effectiveness for lowering cholesterol and supporting heart health based on clinical research. The other ingredients—alfalfa, spinach, kelp, spirulina, wheat grass, and broccoli—lack sufficient evidence in our data to confirm they work for these goals, though broccoli shows possible benefit against colorectal cancer.
Is this safe to take if I'm pregnant or breastfeeding?
Several ingredients here aren't well studied in pregnancy or breastfeeding. Alfalfa is possibly unsafe in supplement form during pregnancy due to estrogen-like activity. Spinach as a food is considered safe and provides folate during pregnancy. Kelp and spirulina should be avoided while breastfeeding due to contamination risk and iodine passing into milk. Talk with your doctor or pharmacist before taking this if you're pregnant or nursing.
What side effects might I experience?
Digestive upset is most common—gas, bloating, diarrhea, and abdominal discomfort, especially during the first week. Barley grass may trigger allergic reactions in sensitive people. Spirulina can cause dizziness, fatigue, headache, or nausea in some users. High-dose broccoli extracts may cause loose stools and cramping. Most people tolerate the product well overall.
Does this product contain gluten?
Barley grass, which is in this product, contains gluten. If you have celiac disease or gluten sensitivity, this product may not be appropriate for you.
Can I take this if I'm on blood thinners?
Not without checking with your pharmacist first. Both alfalfa and spinach in this product contain vitamin K, which can reduce warfarin's effectiveness if you consume them regularly. Your dose might need adjustment, or your doctor may advise against this product. Always verify with your pharmacist before starting.
What is in the capsule besides the active ingredients?
The tablet contains several inactive ingredients used as binders and fillers: dicalcium phosphate, microcrystalline cellulose, croscarmellose sodium, stearic acid, magnesium stearate, silicon dioxide, hydroxypropyl methylcellulose, and polyethylene glycol. These help form and preserve the tablet.

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.

Green Veggie Complex label
Go deeper

The Full Monographs Behind Green Veggie Complex’s Ingredients

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

Herb & supplement monograph

Alfalfa

Interacts with 583 drugs

Alfalfa is a nutrient-rich legume that people use for high cholesterol, menopause symptoms, and general wellness, but solid human evidence for most of these uses is limited. It is best avoid...

Read the full Alfalfa monograph → Herb & supplement monograph

Barley

Interacts with 1 drug

Barley is a nutritious whole grain that is a good source of soluble fiber called beta-glucan, which has solid evidence for modestly lowering LDL ('bad') cholesterol when eaten regularly. It...

Read the full Barley monograph → Herb & supplement monograph

Spinach

Interacts with 88 drugs

Spinach is a nutrient-dense leafy green that is a healthy part of a balanced diet, providing vitamins, minerals, fiber, and antioxidants. While it is very safe as a food, concentrated supple...

Read the full Spinach monograph → Herb & supplement monograph

Ascophyllum Nodosum

Interacts with 22 drugs

Ascophyllum nodosum (often sold as bladderwrack or brown seaweed) is a nutrient-rich algae that people use for weight, blood sugar, and thyroid support, but solid human evidence is limited f...

Read the full Ascophyllum Nodosum monograph → Herb & supplement monograph

Blue-green Algae

Interacts with 327 drugs

Blue-green algae are nutrient-rich aquatic microorganisms (such as spirulina and Klamath Lake algae) taken as a supplement for energy, nutrition, and general wellness. Evidence for most heal...

Read the full Blue-green Algae monograph → Herb & supplement monograph

Couch Grass

Couch grass is a common lawn weed whose rhizome has long been used in traditional European herbal medicine, mainly for urinary and bladder complaints. High-quality human studies are lacking,...

Read the full Couch Grass monograph → Herb & supplement monograph

Broccoli

Interacts with 187 drugs

Broccoli is a nutritious cruciferous vegetable rich in fiber, vitamins, and plant compounds like sulforaphane that have drawn scientific interest for health benefits. Eating broccoli as food...

Read the full Broccoli monograph →
Sources

Sources & How We Checked

Green Veggie Complex'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 85 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.

Alfalfa 32 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  3. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
  4. Kurzer MS, Xu X. Dietary phytoestrogens. Annu Rev Nutr 1997;17:353-81. PubMed
  5. Farber JM, Carter AO, Varughese PV, et al. Listeriosis traced to the consumption of alfalfa tablets and soft cheese [Letter to the Editor]. N Engl J Med 1990;322:338. PubMed
  6. Molgaard J, von Schenck H, Olsson AG. Alfalfa seeds lower low density lipoprotein cholesterol and apolipoprotein B concentrations in patients with type II hyperlipoproteinemia. Atherosclerosis 1987;65:173-9. PubMed
  7. Light TD, Light JA. Acute renal transplant rejection possibly related to herbal medications. Am J Transplant 2003;3:1608-9. PubMed
  8. Prete PE. The mechanism of action of L-canavanine in inducing autoimmune phenomena. Arthritis Rheum 1985;28:1198-200. PubMed
  9. Alcocer-Varela J, Iglesias A, Llorente L, Alarcon-Segovia D. Effects of L-canavanine on T cells may explain the induction of systemic lupus erythematosus by alfalfa. Arthritis Rheum 1985;28:52-7. PubMed
  10. Roberts JL, Hayashi JA. Exacerbation of SLE associated with alfalfa ingestion. N Engl J Med 1983;308:1361. DOI
  11. Feingold, R. M. Should we fear "health foods"? Arch Intern Med 7-12-1999;159(13):1502. PubMed
  12. Taormina, P. J., Beuchat, L. R., and Slutsker, L. Infections associated with eating seed sprouts: an international concern. Emerg.Infect.Dis 1999;5(5):626-634. PubMed
  13. Backer, H. D., Mohle-Boetani, J. C., Werner, S. B., Abbott, S. L., Farrar, J., and Vugia, D. J. High incidence of extra-intestinal infections in a Salmonella Havana outbreak associated with alfalfa sprouts. Public Health Rep. 2000;115(4):339-345. PubMed
  14. Mohle-Boetani J, Werner B, Polumbo M, and et al. From the Centers for Disease Control and Prevention. Alfalfa sprouts-- Arizona, California, Colorado, and New Mexico, February-April, 2001. JAMA 2-6-2002;287(5):581-582.
  15. Howard, M. B. and Hutcheson, S. W. Growth dynamics of Salmonella enterica strains on alfalfa sprouts and in waste seed irrigation water. Appl.Environ.Microbiol. 2003;69(1):548-553.
  16. Winthrop, K. L., Palumbo, M. S., Farrar, J. A., Mohle-Boetani, J. C., Abbott, S., Beatty, M. E., Inami, G., and Werner, S. B. Alfalfa sprouts and Salmonella Kottbus infection: a multistate outbreak following inadequate seed disinfection with heat and chl
  17. Strapp, C. M., Shearer, A. E., and Joerger, R. D. Survey of retail alfalfa sprouts and mushrooms for the presence of Escherichia coil O157:H7, Salmonella, and Listeria with BAX, and evaluation of this polymerase chain reaction-based system with experimen
  18. Akaogi, J., Barker, T., Kuroda, Y., Nacionales, D. C., Yamasaki, Y., Stevens, B. R., Reeves, W. H., and Satoh, M. Role of non-protein amino acid L-canavanine in autoimmunity. Autoimmun.Rev 2006;5(6):429-435. PubMed
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Barley 15 references
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See these in context on the Barley monograph →

Spinach 6 references
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See these in context on the Spinach monograph →

Ascophyllum Nodosum 5 references
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See these in context on the Ascophyllum Nodosum monograph →

Blue-green Algae 22 references
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See these in context on the Blue-green Algae monograph →

Broccoli 5 references
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  2. Chakrabarti A, Prais L, Foulds IS. Allergic contact dermatitis to broccoli. Br J Dermatol 2003;148:172-3. PubMed
  3. Hakooz, N. and Hamdan, I. Effects of dietary broccoli on human in vivo caffeine metabolism: a pilot study on a group of Jordanian volunteers. Curr Drug Metab 2007;8(1):9-15. PubMed
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  5. Bauman JE, Hsu CH, Centuori S, et al. Randomized Crossover Trial Evaluating Detoxification of Tobacco Carcinogens by Broccoli Seed and Sprout Extract in Current Smokers. Cancers (Basel). 2022;14(9):2129. Published 2022 Apr 24. PubMed

See these in context on the Broccoli monograph →

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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.

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