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Chlorogenic acid (CGA) is a naturally occurring polyphenol found in coffee and many plant foods. It is best known for its antioxidant activity and for its potential role in glucose and lipid metabolism, which is why CGA is widely used in functional foods and dietary supplements.

This guide explains what chlorogenic acid is, where it comes from, what research suggests about benefits and safety, and—if you’re a brand owner or manufacturer—how to source bulk chlorogenic acid extract with the right specifications and documentation.

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What Is Chlorogenic Acid?

Chlorogenic acid is a family of compounds commonly referred to as caffeoylquinic acids (CQAs). Chemically, CGA is an ester formed from caffeic acid and quinic acid. In coffee, the predominant isomer is often described as 5-O-caffeoylquinic acid (5-CQA).

Because CGA is water-soluble, it can be extracted and standardized into powders used in capsules, tablets, beverages, and functional food formulations.

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Foods and Drinks High in Chlorogenic Acid

Coffee is the most recognized dietary source. However, CGA also appears in various fruits and vegetables.

Common dietary sources

• Green coffee beans (typically the richest commercial source for supplements)
• Roasted coffee (amount varies by roast level and brewing method)
• Apples, pears
• Blueberries
• Eggplant, tomatoes
• Potatoes
• Artichoke

Note: Natural CGA levels vary widely based on plant variety, harvest season, and processing.

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Potential Benefits (What Research Suggests)

Research on chlorogenic acid includes mechanistic studies, animal studies, and human trials. The strongest conclusions generally relate to antioxidant activity and metabolic markers, but results can vary depending on dose, extract type, and study design.

1) Antioxidant support

CGA can help neutralize free radicals, supporting general antioxidant status.

2) Glucose metabolism & post-meal blood sugar

Some studies suggest CGA may influence glucose absorption and insulin response. Evidence is mixed, and outcomes depend on the population studied and CGA dose/form.

3) Weight management support (often via green coffee extract)

Green coffee extract (which contains CGAs) has been studied for effects on body weight. Reviews note potential benefits, but also highlight limitations such as small sample sizes and study bias.

4) Cardiometabolic markers

CGA has been investigated for potential effects on blood pressure and lipid markers. Findings vary and should not be interpreted as disease treatment.

Important: Dietary supplements should not be marketed to diagnose, treat, cure, or prevent disease. Use compliant structure/function language where applicable.

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Typical Supplement Formats & Dosage (General Information)

Common formats

• Green coffee bean extract (standardized CGAs)
• CGA-rich botanical extracts
• Purified chlorogenic acid (high-purity applications)

Common daily range used in studies/products

• Many commercial supplements use ~200–600 mg/day of CGA-containing extract, often split into 1–2 servings.

Dosage depends on the product’s standardization, intended positioning, and regulatory requirements in your target market.

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Side Effects, Interactions & Precautions

Chlorogenic acid is widely consumed through coffee and foods. However, concentrated extracts may cause side effects in sensitive individuals.

Possible side effects

• Mild gastrointestinal discomfort
• Jitters or increased heart rate (often related to caffeine in green coffee extracts—not CGA itself)
• Rare allergic reactions

Interactions & caution

• Individuals using blood sugar or blood pressure medications should consult a healthcare professional.
• High-polyphenol products may affect iron absorption for some people if taken excessively over time.

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For Manufacturers & Bulk Buyers: Chlorogenic Acid Extract Sourcing Guide

If you are sourcing chlorogenic acid for dietary supplements or functional food production, focus on standardization, analytical methods, contaminants limits, and complete documentation.

Market-Mainstream Specifications (and Custom Options)

Below are common grades seen in the market. Availability depends on the raw material source and extraction method.

Common grades (typical)

• Chlorogenic Acids 25% (HPLC) – entry-level functional ingredient
• Chlorogenic Acids 45% / 50% (HPLC) – mainstream supplement grade (often from green coffee bean extract)
• High-purity CGA 98% (HPLC) – formulation/R&D grade (capsules, tablets, functional ingredients requiring tighter dosing)

Customizable options

• Customized CGA content (e.g., 30–70%)
• Decaffeinated green coffee extract (for low-caffeine positioning)
• Solvent system customization (commonly water/ethanol extraction)
• Particle size, bulk density, flowability optimization
• Flavor/odor optimization for beverage applications

Tip for SEO + conversion: publish a downloadable “Spec Sheet PDF” and a “COA sample” gated behind a form.

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Typical Quality Control & Testing Items

A professional COA for CGA products commonly includes:

Identity & assay

• Chlorogenic acids content by HPLC
• (Optional) isomer profile (e.g., 3-CQA/4-CQA/5-CQA)
• (Optional) caffeine content (important for green coffee extracts)

Contaminants

• Heavy metals (Pb/As/Cd/Hg)
• Pesticide residues (as applicable to your market)
• Residual solvents (if solvent extraction used)
• Microbiology (TPC, yeast & mold, E. coli, Salmonella, etc.)
• Mycotoxins (if risk-based program requires)

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Documents Available (Typical B2B File Package)

Most B2B buyers expect a standard export documentation set. Commonly requested files include:

• COA (Certificate of Analysis)
• SDS/MSDS
• Allergen Statement
• Non-GMO Statement
• TSE/BSE Statement
• Residual Solvents Statement
• Pesticide Residue Statement / Report
• Heavy Metals Report
• Microbiological Report
• Country of Origin (COO)
• Specification Sheet / TDS
• Manufacturing Flow Chart
• (If applicable) GMP / HACCP / ISO certificates
• (If applicable) Halal / Kosher

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Typical MOQ, Lead Time & Packaging (Industry-Typical)

Actual terms depend on stock, seasonality, and customization. Below are typical ranges used across the industry:

MOQ

• Samples: 100 g – 1 kg
• Standard bulk: 25 kg (common export carton/drum unit)
• Customized production: 100–300 kg+ (varies by spec and process)

Lead time

• In-stock standard grades: 7–15 business days
• Customized specs / new production: 15–30 business days

Packaging

• 1 kg aluminum foil bag (inner) + carton
• 25 kg fiber drum (inner double PE bags)
• Custom packaging and private label/OEM packaging available upon request

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How to Request a Quote (RFQ Checklist)

To speed up your quotation and compliance evaluation, include:

1. Target specification (e.g., Chlorogenic Acids 50% HPLC or CGA 98% HPLC)
2. Intended application (capsule/tablet/beverage/functional food)
3. Target market (EU/US/UK/SEA) and required compliance documents
4. Annual demand estimate + first order quantity
5. Required testing limits (heavy metals, pesticides, microbiology)
6. Preferred incoterms (EXW/FOB/CIF) and destination port

Bulk inquiry: You can contact us at liaodaohai@gmail.com (or use the RFQ form on this page).

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FAQ

Is chlorogenic acid the same as chlorophyll?

No. The names look similar, but chlorogenic acid is a polyphenol (caffeoylquinic acid family), not chlorophyll.

Does green coffee extract always contain caffeine?

Often yes, unless it is specifically processed as decaffeinated. If caffeine content matters for your product positioning, request it on the specification.

What is the most common commercial source for CGA supplements?

Green coffee bean extract is widely used because it can be standardized to a consistent chlorogenic acids content.

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References & Regulatory Sources

Scientific / PubMed & Databases
1) PubChem (NIH/NCBI) – Chlorogenic Acid (CID 1794427): definition, structure, related compounds
https://pubchem.ncbi.nlm.nih.gov/compound/1794427

2) Tajik N, Tajik M, Mack I, Enck P. (2017). The potential effects of chlorogenic acid… (Comprehensive review; PMID: 28391515)
https://pubmed.ncbi.nlm.nih.gov/28391515/
(Also indexed on Europe PMC)
https://europepmc.org/article/MED/28391515

3) Onakpoya IJ, Terry R, Ernst E. (2011). The use of green coffee extract as a weight loss supplement… (Systematic review; PMID: 20871849)
https://pubmed.ncbi.nlm.nih.gov/20871849/
(Free full text on Europe PMC)
https://europepmc.org/articles/PMC2943088

4) Meng S, Cao J, Feng Q, Peng J, Hu Y. (2013). Roles of chlorogenic acid on regulating glucose and lipids metabolism… (Review; PMID: 24062792)
https://pubmed.ncbi.nlm.nih.gov/24062792/
(Also on Europe PMC)
https://europepmc.org/article/MED/24062792

5) Risk Assessment of Chlorogenic and Isochlorogenic Acids in Food (MDPI Molecules, 2023) – safety/toxicology overview
https://www.mdpi.com/1420-3049/28/14/5540

Regulatory / Claims Compliance (US)
6) FDA – Structure/Function Claims (what is allowed for dietary supplements)
https://www.fda.gov/food/nutrition-food-labeling-and-critical-foods/structurefunction-claims

7) eCFR – 21 CFR 101.93 (dietary supplement structure/function claim requirements & disclaimer)
https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-101/subpart-F/section-101.93

8) FDA – Dietary Supplement Labeling Guide, Chapter VI (Claims)
https://www.fda.gov/food/dietary-supplements-guidance-documents-regulatory-information/dietary-supplement-labeling-guide-chapter-vi-claims

Regulatory / Claims Compliance (EU)
9) EUR-Lex – Regulation (EC) No 1924/2006 (Nutrition & health claims made on foods)
https://eur-lex.europa.eu/eli/reg/2006/1924/oj/eng

10) EUR-Lex – Directive 2002/46/EC (Food supplements framework)
https://eur-lex.europa.eu/eli/dir/2002/46/oj/eng

11) EUR-Lex – Regulation (EU) 2015/2283 (Novel Foods)
https://eur-lex.europa.eu/eli/reg/2015/2283/oj/eng

12) EUR-Lex – Regulation (EC) No 852/2004 (Food hygiene)
https://eur-lex.europa.eu/eli/reg/2004/852/oj/eng

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