How does consuming turmeric affect your liver?

Most patients recovered after stopping these supplements, but some cases required hospitalization.

The Drug‑Induced Liver Injury Network (DILIN) reported that among 2,392 suspected liver‑injury cases studied from 2004 to 2022, 10 were linked to turmeric supplement intake.

In these cases, individuals had been taking turmeric for an average of 86 days before liver‑injury symptoms appeared.

The most common side effects included:

- Jaundice, which is yellowing of the skin and the whites of the eyes.

- Abdominal pain.

- Nausea.

Notably, most of these cases were associated with supplements containing high doses of curcumin, some of which included additional ingredients that greatly enhance the body’s absorption of the compound, such as piperine from black pepper and certain fats, as noted by Patricia Weiser, PhD in pharmacy, for the medical site “Very Well Health.”

While improving curcumin absorption may seem beneficial, it can also increase the risk of liver injury because it raises the amount of the compound that reaches the bloodstream.

Additionally, cases have been recorded of some turmeric or curcumin supplements being contaminated with heavy metals such as arsenic and lead, which can adversely affect liver health.

Therefore, it is essential to choose dietary supplements carefully, follow the usage instructions provided by manufacturers, and consult a physician before starting any supplement.

Signs of liver damage caused by turmeric

If you are taking turmeric supplements and notice any of the following symptoms, it is essential to contact a doctor immediately, as they may indicate liver toxicity or injury:

- Feeling pain or discomfort in the abdomen.

- Darkening of urine color.

- Nausea.

- Loss of appetite without an obvious cause.

- Unusual fatigue or general weakness.

- Yellowing of the skin or the whites of the eyes, known as jaundice.

What amount of turmeric is considered excessive?

It is important to follow the dosage instructions listed on dietary supplement packaging, especially when switching brands or changing product formulations, due to potentially large variations in quality and ingredient concentration.

Most clinical studies have used turmeric doses ranging from 500 to 2,000 milligrams per day without reporting major safety issues under those study conditions.

Traditional turmeric formulations are generally safe when taken at doses up to 1.5 grams, i.e., 1,500 milligrams daily, for periods not exceeding three months.

Some products with higher curcumin concentrations have also been used safely for short periods.

Generally, doses exceeding 8 grams of curcumin per day are not recommended due to the potential for intolerable side effects.

Turmeric used in food

Consuming turmeric daily within typical culinary amounts is generally safe.

Intake of up to two grams of turmeric added to meals or drinks daily is considered safe and unlikely to adversely affect the liver.

Despite potential risks, curcumin is known for its anti‑inflammatory and antioxidant properties and may support liver health in several ways.

Reducing oxidative stress and inflammation

Curcumin may help reduce oxidative stress and inflammation, which are major contributors to the development of many liver diseases, including non‑alcoholic fatty liver disease.

Improving inflammation markers and liver enzymes

It is likely that curcumin helps lower levels of inflammation‑related markers and regulates the activity of certain liver enzymes involved in metabolism and detoxification.

Limiting liver fibrosis

Some research suggests that curcumin may contribute to reducing fibrosis in liver tissue, as well as promoting the repair of damaged tissue.

Is turmeric consumption safe for everyone?

It is advised to avoid turmeric‑containing supplements or consult a doctor before using them in the following situations:

Having liver disease

If you have liver health issues, such as hepatitis or bile‑duct obstruction, you may be more susceptible to complications associated with turmeric supplements.

Pregnancy and breastfeeding

Pregnant or nursing women, as well as those planning pregnancy, are advised to avoid turmeric supplements or consult a doctor before using them, due to limited safety information in these situations.

Taking medications or herbs that may affect the liver

Caution should be exercised when taking turmeric alongside medications or herbs that may stress the liver or are known to pose liver‑injury risks.

Examples include acetaminophen, commercially known as “Tylenol,” especially when used in high doses.

Potential drug interactions

It is also important to note that turmeric and curcumin can interact with many medications.

Some of these interactions may increase drug concentrations in the body, raising the likelihood of side effects or health complications.

Therefore, one should consult a doctor or pharmacist before taking turmeric supplements, especially for individuals on prescription medications for chronic conditions.