Beef tallow

Beef tallow contains substantial saturated fat, alongside monounsaturated fat. The main dietary question is what it replaces and how much is eaten. Controlled feeding studies found higher LDL cholesterol with tallow-rich diets than with several unsaturated oils, although the studies were small and measured biomarkers rather than heart attacks. Different saturated fatty acids also have different effects: tallow is a mixture, so findings for stearic acid alone cannot describe the whole fat.

Broader trials of saturated-fat reduction suggest that benefits depend on the replacement nutrient and baseline cardiovascular risk; estimates for several long-term outcomes remain uncertain. Current US dietary guidance lists tallow as a cooking option while retaining a general saturated-fat limit, and WHO and the American Heart Association favor replacing saturated-fat sources with unsaturated fats. Tallow can resist some chemical changes during frying, but prolonged heating still alters it, and laboratory stability does not demonstrate better long-term health. Results from animal disease models, whether favorable or unfavorable, do not establish what an ordinary tallow-containing meal will do in people.

Research reviewed on September 5, 2026 · 12 sources