Turmeric’s Antioxidant Power Could Benefit Heart Health, Experts Say

Turmeric has gone from a humble kitchen spice to a popular wellness trend, but are its health benefits truly evidence-based or largely overstated? Rooted in Ayurvedic and traditional medicine systems, this bright yellow spice has been used for centuries to support skin, joint, and digestive health, long before it appeared in supplement aisles. Today, it’s being added to everything from lattes to capsules, raising questions about how much benefit people are actually getting from it.

“Turmeric is a culinary staple ingredient in many Indian, Persian, and Thai dishes," explains Julie Stefanski, M.Ed., R.D.N., registered dietitian and spokesperson for the Academy of Nutrition and Dietetics. "Turmeric’s bright yellow color reflects the strong antioxidant actions it can have in the human body.”

Here’s what the research really says about turmeric’s potential benefits and the risks worth knowing before adding more of it to your diet.

Turmeric fights inflammation

Turmeric’s active compound, curcumin, is a polyphenol that’s been studied for its antioxidant and anti-inflammatory properties, and its potential role in chronic inflammation (the body’s ongoing immune response that, when prolonged, can contribute to tissue damage and disease risk). Inflammation itself is a complex process tied to a range of health conditions, often measured in research through biomarkers linked to oxidative stress (an imbalance between free radicals and antioxidants in the body). Early studies suggest curcumin may help influence these pathways and support cellular and vascular health, but human evidence is still developing.

At the same time, inflammation isn’t driven by any single food oringredient; it reflects the bigger picture of lifestyle, including diet quality, movement, and habits like smoking. Adding turmeric to meals can fit into a nutrient-rich eating pattern, but it won’t counterbalance a diet consistently high in saturated fat, sodium, or added sugar. In other words, it can complement a healthy routine, but it’s not a fix for a broader pattern.

It may assist with pain relief

Research on turmeric and curcumin has explored their potential role in pain management across several conditions. Some studies have linked turmeric to reduced osteoarthritis pain, while curcumin has also been studied for easing gastrointestinal discomfort in inflammatory bowel disease (IBD). Overall, findings suggest that curcumin and turmeric used alone or alongside other treatments may help reduce IBS symptom severityand improve quality of life, though more robust human clinical research is still needed.

Ongoing research continues to examine turmeric’s active compounds, says Stefanski, adding that “there has been continued analysis of past studies and new data that verifies that the compounds in turmeric, such as curcumin, can act to reduce cell damage, inflammation, blood pressure, improve metabolic function, and joint pain.” Even so, experts emphasize that turmeric should not be used as a replacement for prescribed pain medications, and you should speak with a healthcare provider before using it therapeutically.

Turmeric may reduce risk of certain chronic diseases

Curcumin can influence several biological pathways involved in oxidative stress, a process linked to the development of chronic, lifestyle-related conditions such as heart disease, type 2 diabetes, and some cancers. Oxidative stress reflects an imbalance between free radicals and antioxidants in the body, which over time can contribute to cellular damage.

Curcumin has also been studied for its potential role in cancer prevention, largely due to its effects on inflammation and cell signaling pathways, though most findings are still preliminary and not conclusive in humans. That said, overall dietary patterns consistently play a far greater role in long-term health outcomes than any single compound or ingredient.

It promotes healthy skin

Interest in turmeric has expanded beyond the kitchen, with early research exploring its potential role in skin health. Studies in both oral and topical forms have examined associations with conditions such as psoriasis, alopecia, and acne, though the evidence is still evolving and key questions remain around mechanisms, dosing, and who may benefit most. One2025 review in Frontiers in Pharmacology found that curcumin shows promising anti-aging and skin-protective effects, particularly against UV-related damage, but more research is needed to improve delivery and confirm clinical effectiveness.

For now, turmeric is best supported in its original context as a culinary ingredient used to enhance everyday meals that include vegetables, whole grains, and lean proteins. In supplement form, turmeric and curcumin products, like all dietary supplements, are not pre-approved by the U.S. Food and Drug Administration for safety or efficacy before entering the market; therefore, third-party testing is an important consideration to help verify quality and ingredient integrity.

And fights cognitive decline

Curcumin has also been linked to protection against cognitive decline, such as limiting the plaques that lead to neurological impairment in Alzheimer's disease. Research published in the American Journal of Geriatric Psychiatry found that daily consumption of a specific form of curcumin improved memory and mood in individuals with mild age-related memory loss. While it seems promising, it's important to know that more research in larger human trials is needed since much of the research done to date has been relatively small. (The aforementioned study only had about 40 participants.)

Another study links curcuminoids to a possible reduced risk of cognitive decline, indicating that the spice as part of a meal can be beneficial rather than a curcumin supplement alone. That's why we're big proponents for using the spice when cooking as it was intended to be used.

Although the health benefits of turmeric are broad, certain people should avoid using it in food or supplement form without first speaking to a physician or healthcare provider. This includes those in active cancer treatment, as turmeric may interfere with certain chemotherapy medications such as camptothecin, mechlorethamine, doxorubicin, and cyclophosphamide. It may also reduce the effectiveness of common medications including aspirin, ibuprofen, acetaminophen, and indomethacin, and could increase bleeding risk for those taking warfarin or other blood thinners. People with gastrointestinal conditions or a history of kidney stones should also consult a healthcare provider before using turmeric supplements.

“It’s important to purchase a turmeric supplement from a reputable company to make sure that you are getting the actual ingredients that you’re looking for,” says Stefanski. Some people may also experience mild side effects such as nausea, dizziness, upset stomach, or diarrhea when taking turmeric.

First, it's worth noting that some early research on turmeric was conducted in labs or on animals, so results don’t necessarily translate directly to people.

What's more, using turmeric in meals or drinks can be a healthy addition to your diet, but it likely won’t deliver the same effects seen in research studies, which often rely on much higher, therapeutic doses found in supplements. These study doses can exceed what’s typically available in over-the-counter products, and participants are usually monitored closely for safety.

“The doses of turmeric used in studies are considered ‘therapeutic,’ or so high that even available products you can purchase are much smaller than study doses," says Stefanski.

Before trying higher-dose supplements, it’s best to consult a healthcare provider, such as a physician or registered dietitian, especially to ensure it aligns with your health history and lab results.

A quick note on nutrient absorption: Although curcumin is responsible for many of the health benefits of turmeric, the compound is unfortunately not very bioavailable, meaning it's not easily absorbed by the body. But research has linked piperine — the active compound in black pepper — to better absorption of curcumin (specifically an increase of 2,000% in the bioavailability of curcumin). That's why many supplements on the market contain both curcumin and piperine. Still, you're better off eating turmeric and pepper in meals instead of in supplement form. The phytonutrients found in plant-based foods also boost absorption of all types of antioxidant-like compounds, which can ultimately improve health overall.

People who may benefit most from incorporating turmeric into their routine are those with generally healthy organ function who are looking to support inflammation-related conditions, such as arthritis, by adding it as part of a balanced diet with other antioxidant-rich foods. This can be a simple, food-first way to include turmeric without needing high-dose supplements, says Stefanski.

However, she cautions that people should be more careful if they are ill, dehydrated, or taking medications, since both supplements and medications are processed through the liver and may increase the risk of interactions. She also emphasizes that anyone considering turmeric in supplement form, especially at higher, “therapeutic” doses, should check in with a healthcare provider to ensure it’s appropriate for their individual health needs.

Turmeric, as part of a healthy diet and lifestyle, can certainly reap some pretty stellar health benefits. But one food or food component doesn't provide a miracle cure-all, and turmeric won't necessarily override poor diet and lifestyle choices. That being said, it can make an excellent addition to your spice cabinet both for its culinary and health properties. Experiment in the kitchen with turmeric on savory cauliflower popcorn or in a delicious shrimp curry weeknight dinner. Try to pair turmeric with black pepper in meals to increase its absorption, which is a fairly easy task as their flavors are complementary. If you are set on taking turmeric in supplement form, ensure that it is tested by a third party for quality and safety and be sure to run it by your doctor or healthcare provider.

Valerie Agyeman (she/her) is a women's health dietitian and the host of the Flourish Heights podcast, where she produces science-driven content covering overlooked nutrition, wellness, and women’s health topics. She has over 10 years of combined nutrition communications, corporate wellness, and clinical nutrition experience. Valerie is a trusted expert in the media, regularly appearing on networks such as Fox 5 DC, PIX-11, and ABC’s Good Morning Washington. She is also a contributing expert to publications like Women’s Health Magazine, Prevention, Good Housekeeping, and The Everygirl.

Stefani Sassos is the director of the Good Housekeeping Institute Nutrition Lab, where she oversees all nutrition-related content, product testing, and evaluation. She runs and oversees supplement testing and analysis for Good Housekeeping and has previously covered other supplements, including multivitamins and joint supplements.

For this piece, we consulted a health and nutrition expert to provide trusted, practical guidance:

Julie Stefanski is a senior editor of family and consumer sciences for Goodheart-Willcox, where she creates textbooks for culinary arts, nutrition and wellness, food science, and cooking skills for high school students. She also owns a private practice focused on freelance writing and continuing education. Stefanski served as a pediatric dietitian and an adjunct professor in York College's nursing department for 13 years. She is a member of the Academy's Nutrition Educators of Health Professionals, Food and Culinary Professionals, and Dietitians in Business and Communications dietetic practice groups. Stefanski graduated from Messiah University and earned a master's degree in adult and distance education from Penn State University.

Medically reviewed byStefani Sassos, M.S., R.D.N., NASM-CPT

Nutrition & Fitness Lab Director

Stefani (she/her) is a registered dietitian, a NASM-certified personal trainer and the director of the Good Housekeeping Institute Nutrition and Fitness Lab, where she oversees all nutrition and fitness-related content, testing and evaluation. She holds a master’s degree in clinical nutrition from New York University, as well as advanced certifications as a Women's Fitness Specialist and a Behavior Change Specialist. Stefani is dedicated to providing readers with evidence-based content to encourage informed food choices and healthy living. She is an avid CrossFitter and a passionate home cook who loves spending time with her big fit Greek family.