EGCG (Epigallocatechin gallate) is a key compound found in green tea with antioxidant properties. It may help reduce insulin resistance, body weight, and inflammation, which are major factors in Polycystic Ovary Syndrome (PCOS).

Current evidence shows promising trends, but more long-term research is still needed for confirmation.

What is EGCG?

EGCG is a type of catechin found in green tea. It has properties such as:

• Antioxidant

• Anti-inflammatory

• Helps regulate various metabolic processes in the body

What is PCOS and What Does It Involve?

Polycystic Ovary Syndrome (PCOS) is a hormonal disorder in women of reproductive age. Key characteristics include:

• High levels of male hormones (androgen excess)

• Irregular menstrual cycles

• Insulin resistance

How Does EGCG Affect PCOS?

1. Reduces Insulin Resistance

EGCG may:

• Improve insulin sensitivity

• Lower blood sugar levels

Research suggests EGCG influences the AMPK pathway, which is involved in metabolism.

2. Reduces Androgen Levels

EGCG may help:

• Lower testosterone levels

• Improve overall hormonal balance

3. Reduces Inflammation

Chronic inflammation is common in PCOS.
 EGCG helps reduce inflammatory markers due to its antioxidant properties.

Current Research on EGCG and PCOS

1. Randomized Controlled Trial (RCT)

A study by Ehsan Mombaini (2018) in women with PCOS found:

• Reduced body weight

• Lower BMI

• Improved insulin resistance

2. Metabolic Research

A study published in the Iranian Journal of Reproductive Medicine reported that:

• EGCG reduced insulin resistance

• Improved metabolic profiles

Who with PCOS May Benefit Most from EGCG?

• Individuals with PCOS and overweight

• Those with insulin resistance

Recommended dosage: 300–500 mg per day

Conclusion

EGCG from green tea shows potential benefits in managing PCOS, particularly in:

• Insulin resistance

• Weight control

• Reducing inflammation

However, it is not a primary treatment and should be used alongside:

• Proper diet

• Regular exercise

• Medical treatment

References

• Mombaini, E. et al. (2018). EGCG effects on PCOS. Clinical trial

• Nutrients Journal. Green tea and metabolic health

• Iran J Reprod Med. EGCG and insulin resistance

• Thielecke, F. (2009). Green tea catechins and metabolic effects

• Hursel, R. (2011). Catechin effects on fat metabolism