| Summary: | The fruit of <i>Caryocar brasiliense</i> Cambess. is a source of oil with active compounds that are protective to the organism. In our work, we analyzed the physicochemical characteristics and evaluated the effects of supplementation with <i>C. brasiliense</i> oil in an animal model. We characterized the oil by indices of quality and identity, optical techniques of absorption spectroscopy in the UV–Vis region and fluorescence, and thermogravimetry/derived thermogravimetry (TG/DTG). For the animal experiment, we utilized mice (<i>Mus musculus</i>) supplemented with lipidic source in different dosages. The results demonstrated that <i>C. brasiliense</i> oil is an alternative source for human consumption and presents excellent oxidative stability. Primarily, it exhibited oleic MFA (53.56%) and palmitic SFA (37.78%). The oil level of tocopherols and tocotrienols was superior to the carotenoids. The supplementation with <i>C. brasiliense</i> oil reduced the levels of total cholesterol, LDL-c, and non-HDL-c. Regarding visceral fats and adiposity index, the treatment synergically supplemented with olive oil and <i>C. brasiliense</i> oil (OO + CO) obtained the best result. Therefore, <i>C. brasiliense</i> oil is a high quality product for consumption. Its supplementation promotes beneficial effects mainly on the lipidic profile.
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