The Cooking Oil You Have Been Using Your Entire Life Is the Worst One for Your Health

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Alicia Thompson

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A familiar bottle in many American kitchens is back in the spotlight. Health experts say coconut oil, often sold as a wellness food, is still among the worst cooking oils for heart health because it is packed with saturated fat.

That warning is not new, but it matters as shoppers in the U.S. keep paying premium prices for products labeled natural, cold-pressed, or organic. According to the American Heart Association, the core concern is simple: coconut oil raises LDL, the so-called bad cholesterol, more than unsaturated plant oils.

Why coconut oil keeps getting singled out

Nanda Mends/Pexels
Nanda Mends/Pexels

The American Heart Association said in a 2017 scientific advisory that 82% of the fat in coconut oil is saturated fat. That is higher than butter at 63%, beef fat at 50%, and pork lard at 39%, according to the same advisory. The group said replacing saturated fats with polyunsaturated fats lowers cardiovascular disease risk.

Harvard T.H. Chan School of Public Health has also warned that coconut oil behaves more like butter than like olive or canola oil in the body. In practical terms, that means it can raise LDL cholesterol, a major marker linked to heart disease in the United States, where the CDC says heart disease remained the leading cause of death in 2023.

Consumer interest has stayed strong despite those warnings. U.S. grocery shelves in states from California to Florida still stock coconut oil as a baking, frying, and coffee additive, often tied to older wellness trends from the mid-2010s that promoted medium-chain triglycerides, or MCTs, without always separating purified MCT oil from standard coconut oil.

What nutrition researchers say the evidence shows

cottonbro studio/Pexels
cottonbro studio/Pexels

The strongest concern is not that coconut oil is toxic, but that it compares poorly with oils rich in unsaturated fats. A 2020 review published in Circulation found coconut oil consumption significantly increased LDL cholesterol compared with non-tropical vegetable oils, even when some studies showed it also raised HDL, the so-called good cholesterol.

That distinction matters because U.S. dietary guidance has been moving in the same direction for years. The Dietary Guidelines for Americans, 2020-2025, recommend limiting saturated fat to less than 10% of daily calories for people age 2 and older, a benchmark that can be reached quickly when cooking with coconut oil regularly.

Researchers also note that not all cooking fats perform the same way in the kitchen. Extra-virgin olive oil, canola oil, peanut oil, and avocado oil are commonly cited by dietitians as better everyday options because they contain more monounsaturated or polyunsaturated fats, which have stronger evidence behind them in long-term heart health studies.

What this means for shoppers in the U.S.

Helena Lopes/Pexels
Helena Lopes/Pexels

For most households, experts are not calling for panic or a total pantry purge. Instead, cardiologists and registered dietitians generally advise using coconut oil sparingly, much like butter, and choosing oils such as olive or canola for routine sautéing, roasting, and dressings.

That message is especially relevant as food prices remain a factor in American shopping habits in 2026. According to the U.S. Bureau of Labor Statistics, consumers have continued to track grocery costs closely, and many are deciding between lower-cost blends, store-brand vegetable oils, and higher-priced specialty oils marketed for health.

The bottom line from mainstream medical guidance has stayed remarkably stable from 2017 through 2026. If someone has been told that the healthiest oil is the one that sounds the most natural, experts say the evidence points elsewhere: oils lower in saturated fat still have the clearest advantage for heart health.

Meet Alicia Thompson

Hi, I’m Alicia Thompson. At Gourmetry, I try to make gourmet cooking accessible to everyone with easy, bold, and delicious recipes for every occasion.

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