Berberine is an herbal supplement that naturally occurs in the roots and bark of various plants. It may help treat symptoms of PMOS by supporting weight management and healthy blood sugar levels.

Polyendocrine metabolic ovarian syndrome (PMOS, formerly known as PCOS) is a common condition that affects hormones. It’s estimated to affect between 3% and 10% of reproductive-aged women worldwide.

Although there’s currently no cure for PMOS, there are a variety of conventional and holistic treatment options available to help manage symptoms.

Berberine is a popular herbal supplement that may help treat PMOS. We explore what berberine is and whether it’s effective for PMOS symptoms.

In May 2026, global experts officially changed the name for PCOS to polyendocrine metabolic ovarian syndrome (PMOS). Experts say the name change more accurately reflects the condition as something that affects the whole body.

You may see both terms used, as rollout of the new term is expected to take several years, with full integration into international guidelines and insurance documentation by 2028.

Berberine is the primary active compound in a plant known as Rhizoma coptidis. This plant has been used to treat inflammation and bacterial infections in traditional Chinese medicine practices for centuries.

Many commercial berberine supplements are extracted from barberry shrubs, but they may also be derived from other plants, including Oregon grape, goldenseal, and tree turmeric.

Today, berberine is frequently used as an alternative to conventional medications. It may help manage symptoms associated with PMOS, as well as various symptoms that increase your risk of heart disease and diabetes, such as:

Early research suggests berberine may be an effective alternative or complementary therapy for certain physiological symptoms of PMOS.

May help manage insulin sensitivity

It’s estimated that up to 80% of people with PMOS have insulin resistance. If left untreated, insulin resistance can eventually develop into type 2 diabetes.

According to the Centers for Disease Control and Prevention (CDC), more than 50% of people with PMOS develop type 2 diabetes by the time they reach age 40.

Research from 2017 suggests berberine may play a role in treating insulin resistance by increasing your body’s production and activity of certain compounds that are responsible for aiding carb metabolism and insulin sensitivity.

A 2020 research review that included over 1,000 women found that berberine was significantly more effective at improving insulin sensitivity and reducing blood sugar than a placebo.

What’s more, berberine’s effects were comparable to that of a popular conventional medication known as metformin.

May support weight management

PMOS can increase a person’s tendency to accumulate excess body fat, particularly around the midsection. This is thought to be caused by a combination of increased testosterone levels and insulin resistance.

Research from 2017 suggests that berberine may promote healthy weight management due to its ability to stimulate the redistribution of fatty tissue and reduce the body’s tendency to store additional fat.

Although the results are promising, more research is needed to determine how berberine may affect weight gain and fat distribution in larger PMOS populations.

May improve cholesterol profiles

People with PMOS have an increased risk of developing heart disease, and berberine may play a role in reducing certain heart disease risk factors.

A 2020 research review on berberine’s ability to treat PMOS found that berberine lowered triglycerides and LDL (bad) cholesterol while raising HDL (good) cholesterol.

Ultimately, more well-designed studies are needed to better understand how berberine may be used to support heart health in people with PMOS.

Berberine is usually consumed in capsule form but it’s also available in liquid and powder formulations.

Due to a lack of robust data, there’s currently no consensus regarding the most appropriate dosage of berberine for PMOS.

Several studies have safely used daily doses between 500 micrograms (mcg) divided into 2 to 3 servings, ideally taken with meals.

If you’re interested in trying berberine to manage your PMOS symptoms, consider speaking with a healthcare professional first. They can advise you on whether it’s the right choice for you, as well as suggest an appropriate dosage.

Berberine ranks quite well in terms of safety, yet it’s not risk-free.

The most commonly reported side effects are:

  • nausea
  • diarrhea
  • stomachaches
  • gas
  • headache

However, these side effects are typically mild.

In certain countries, such as the United States, herbal supplements are not regulated to the same degree as medications. This is why it’s important to choose high quality supplements that have been tested for purity and potency by a third-party organization like NSF International or US Pharmacopeia.

Although berberine is often taken by people who are trying to become pregnant, it should be avoided by anyone who is pregnant or nursing.

If you’re considering adding berberine — or any other supplement — to your wellness routine, consult a healthcare professional to ensure it’s right for you. Berberine can interact with several medications, such as those for blood clotting, high blood pressure, and diabetes.

Berberine is a compound found in a variety of plants.

It has been used in traditional Chinese medicine practices for centuries, but modern research suggests it may help treat symptoms associated with PMOS, including high blood sugar levels and weight gain.

Berberine is generally considered safe, and side effects are rare. However, some people report experiencing mild digestive issues, such as nausea or diarrhea, after consuming berberine.

If you’re interested in trying berberine for your PMOS symptoms, consider speaking with a healthcare professional first to make sure it’s appropriate for you.