Gastro Cleanser Formula by GNC Preventive Nutrition — Ingredients, Evidence & Safety

🟢 100/100

This product looks safe

No ingredients exceed tolerable upper intake levels
38% of ingredients have research evidence

A Label Compliance Grade

Product Label

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Label Data

2 Capsule(s) Serving Size

Botanical Product Type

38% Evidence Coverage

Supplement Facts — Evidence Check

Fennel seed powder

250 mg

Artichoke leaf extract

100 mg

Ginger root extract

100 mg

📊 Market median: 250.0mg (337 products) 📚 125 studies (Tier A: 1, B: 41)

This product: 100mg

Fenugreek seed extract

100 mg

📊 Market median: 500.0mg (193 products) 📚 7 studies — no high-quality reviews

This product: 100mg

Licorice root extract

70 mg

📊 Market median: 420.0mg (127 products) 📚 1 studies (Tier A: 0, B: 1)

This product: 70mg

Papaya fruit powder

50 mg

Aloe vera gel extract

25 mg

📊 Market median: 100.0mg (166 products) 📚 10 studies (Tier A: 0, B: 1)

This product: 25mg

Peppermint leaf

0.2 mg

📊 Market median: 60.0mg (107 products) 📚 1 studies — no high-quality reviews

This product: 0.2mg

Other Ingredients

Gelatin Microcrystalline Cellulose Stearic Acid Maltodextrin Silicon Dioxide Magnesium Stearate Titanium Dioxide

Label Claims — Verification

❓ All Other

❓ Structure/Function

All Other (99% of products) Structure/Function (79% of products) Nutrient (9% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Directions: As a dietary supplement, take the contents of one Herbal Restore Pack (includes Gastro Cleanser Formula and Total Cleanser) on days 8-14.

⚠️ Warnings & Precautions

Contains: Wheat.

Warning: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medical condition.

Discontinue use two weeks prior to surgery.

California Residents Only: Warning: Cancer and reproductive harm-www.P65Warnings.ca.gov.

Keep out of reach of children.

🧪 Formulation Notes

Conforms to USP <2091> for weight. Meets USP <2040> disintegration.

This product contains EGCG from green tea.

No artificial flavors.

1st Stage: Cleanse & purify 2nd Stage: Detox 3rd Stage: Restore Gently supports overall digestive health without fasting Scientifically formulated

Use this 3-stage program to cleanse your body of toxins and promote digestive health. STEP 3 – Restore days 8 through 14 Each daily Herbal Restore Pack (includes Gastro Cleanser Formula and Total Cleanser) has herbs to help support intestinal health.

Additional Information

Days 8-14 restore

Store in a cool, dry place.

For more information: 1-888-462-2548 Shop now @GNC.com Please recycle this box.

Our quality commitment to you Since 1935, our mission as the industry leader has been to provide you with the highest-quality nutritional supplements. We continue to stand behind this mission. If you're not 100% satisfied with your purchase, return the unused portion of the product with your receipt with 30 days and we'll either refund your money or find a replacement product that is right for you.

Product Details

DSLD Entry Date 2020-06-24

Product Type Botanical

Form Capsule

Brand GNC Preventive Nutrition

Bundle Advanced Complete Body Cleansing 14-Day Program

DSLD ID 228957

Data Updated 2026-04-11

Research Evidence

14 Research Sources

50 Avg Quality Score

8 Rct

4 Meta Analysis

2 Clinical Trial

B The Effect of Fenugreek in Type 2 Diabetes and Prediabetes: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Meta Analysis International journal of molecular sciences 2023

PubMed DOI

B A randomized controlled clinical trial evaluating the effect of Trigonella foenum-graecum (fenugreek) versus glibenclamide in patients with diabetes

Rct African health sciences 2019

PubMed DOI

C The effect of fenugreek seed supplementation on serum irisin levels, blood pressure, and liver and kidney function in patients with type 2 diabetes mellitus: A parallel randomized clinical trial

Rct Complementary therapies in medicine 2020

PubMed DOI

C Effect of saffron and fenugreek on lowering blood glucose: A systematic review with meta-analysis

Meta Analysis Phytotherapy research : PTR 2023

PubMed DOI

C Effect of fenugreek on hyperglycaemia and hyperlipidemia in diabetes and prediabetes: A meta-analysis

Meta Analysis Journal of ethnopharmacology 2016

PubMed DOI

C Effect of fenugreek extract supplement on testosterone levels in male: A meta-analysis of clinical trials

Meta Analysis Phytotherapy research : PTR 2020

PubMed DOI

C Investigating the Effectiveness of Fenugreek on the Quantity of Breast Milk and the Level of Prolactin in Mothers of Preterm Newborns: A Randomized Controlled Clinical Trial

Rct Current drug research reviews 2025

PubMed DOI

C Clinical observation on trigonella foenum-graecum L. total saponins in combination with sulfonylureas in the treatment of type 2 diabetes mellitus

Rct Chinese journal of integrative medicine 2008

PubMed

C Impact of Fenugreek Supplementation on Obesity and Hyperglycemia Among Diabetic Adults in Saudi Arabia

Clinical Trial ClinicalTrials.gov 2025

ClinicalTrials.gov

C Fenugreek bread: a treatment for diabetes mellitus

Rct Journal of medicinal food 2009

PubMed DOI

View all evidence for Fenugreek →