Sesame oil is a nutritious cooking fat with a strong profile of unsaturated fats, natural antioxidants, and compounds linked to lower blood sugar and reduced inflammation. It’s not a superfood, but as a regular part of your diet, it offers real benefits beyond what you’d get from more neutral oils like canola or vegetable blends.
What’s Actually in Sesame Oil
About 85% of the fat in sesame oil is unsaturated. Roughly 35% is monounsaturated fat (the same type found in olive oil) and 49% is polyunsaturated fat, mostly in the form of omega-6 fatty acids. The remaining 15% is saturated fat, which is on the lower end for cooking oils.
A tablespoon of sesame oil delivers around 120 calories, which is standard for any cooking oil. Where sesame oil stands apart is its vitamin E content: about 10 mg per two and a half tablespoons, making it a meaningful source if you use it regularly. Vitamin E acts as an antioxidant, protecting your cells from the kind of damage that accumulates over time.
Sesame oil also contains compounds called lignans, particularly sesamol and sesamin, which don’t show up on a standard nutrition label but contribute significantly to the oil’s health effects. These lignans scavenge free radicals and help reduce a process called lipid peroxidation, where fats in your body break down in ways that promote cell damage. This built-in antioxidant activity also helps the oil itself resist going rancid, giving it a longer shelf life than many polyunsaturated oils.
Effects on Blood Sugar
The most compelling clinical evidence for sesame oil involves blood sugar control. A meta-analysis of 13 randomized controlled trials, covering 731 participants with type 2 diabetes, found that sesame supplementation over 6 to 12 weeks significantly reduced fasting blood glucose and hemoglobin A1c, the marker that reflects average blood sugar over the previous two to three months. These weren’t small, cherry-picked studies; the combined data showed consistent improvements across different trial designs.
This doesn’t mean drizzling sesame oil on your food will replace diabetes medication. But for people managing blood sugar through diet, regularly using sesame oil in place of less beneficial fats is a reasonable strategy with clinical support behind it.
Heart Health: A Mixed Picture
The heart health story is more nuanced than you might expect. A systematic review and meta-analysis published in the British Journal of Nutrition found that sesame consumption significantly reduced triglycerides, a type of blood fat linked to heart disease risk. However, it did not produce a meaningful change in LDL cholesterol, the so-called “bad” cholesterol.
That’s not a dealbreaker. Triglycerides are an independent risk factor for cardiovascular disease, and lowering them matters. But if you’re choosing sesame oil specifically hoping it will drop your LDL numbers, the evidence doesn’t support that expectation. Its heart benefits are real but specific.
Inflammation and Immune Response
Chronic, low-grade inflammation drives many long-term diseases, from heart disease to arthritis. A meta-analysis of seven randomized controlled trials with 310 participants found that sesame consumption reduced levels of interleukin-6 (IL-6), a key inflammatory marker, compared to control groups. The effect was strongest in people who started with higher inflammation levels and in studies that ran for longer periods.
The results for C-reactive protein, another common inflammation marker, were less clear-cut overall. But subgroup analysis revealed significant reductions in participants who had elevated CRP levels at the start, suggesting sesame may be most helpful for people who already have notable inflammation rather than those with normal baseline levels. In other words, the people who need anti-inflammatory help the most seem to benefit the most.
Refined vs. Toasted Sesame Oil
These two versions of sesame oil behave very differently in the kitchen, and choosing the right one matters for both flavor and safety.
Refined sesame oil has a neutral flavor and a smoke point of 410°F (210°C), making it suitable for stir-frying, sautéing, and other high-heat cooking. It performs comparably to peanut oil or avocado oil in terms of heat tolerance. Toasted (unrefined) sesame oil has a deep, nutty flavor and a lower smoke point of 350°F (177°C). It’s best used as a finishing oil: drizzled over noodles, mixed into dressings, or added at the end of cooking. Heating it past its smoke point breaks down the oil and produces unpleasant flavors along with potentially harmful compounds.
Both versions retain sesame’s beneficial fats, though unrefined oil preserves more of the original lignans and antioxidants since it undergoes less processing.
The Omega-6 Question
Nearly 48% of sesame oil’s fat is linoleic acid, an omega-6 fatty acid. You may have heard that omega-6 fats promote inflammation, and that modern diets already contain too much of them relative to omega-3s. This is a real concern in the broader dietary landscape, but it requires context.
Omega-6 fats are essential nutrients your body needs. The problem arises when the ratio of omega-6 to omega-3 in your overall diet becomes extremely lopsided, which happens primarily through heavy consumption of processed foods made with soybean and corn oil. Using sesame oil in moderate amounts, especially if you’re also eating fatty fish, walnuts, or flaxseed for omega-3s, is unlikely to tip that balance in a harmful direction. The clinical trials showing anti-inflammatory benefits from sesame suggest the lignans in the oil may counteract some of the inflammatory potential of its omega-6 content.
Benefits for Skin
Sesame oil has a long history in traditional skincare, and some of that reputation holds up. Its fatty acid profile makes it an effective moisturizer that absorbs reasonably well without feeling excessively greasy. Refined sesame oil scores a 1 on the comedogenic scale (a 0-to-5 rating system for pore-clogging potential), meaning it’s unlikely to cause breakouts for most people. Unrefined sesame oil scores a 3, so it’s a riskier choice if your skin is acne-prone.
There’s limited evidence that sesame oil offers some UV filtering capacity, but nowhere near enough to replace sunscreen. Think of it as a moisturizer with a minor bonus, not a sun protection product.
Allergy Concerns
Sesame is now officially recognized as the ninth major food allergen in the United States. Under the FASTER Act, which took effect January 1, 2023, all packaged foods containing sesame must declare it on the label. This places sesame alongside milk, eggs, peanuts, tree nuts, wheat, soy, fish, and shellfish.
If you’ve never had sesame before, the risk of a serious reaction is low but not zero. Sesame allergies can cause symptoms ranging from hives and digestive upset to anaphylaxis in severe cases. People with existing allergies to other seeds or nuts may want to introduce sesame cautiously.