What is a key dietary source of unsaturated fatty acids?

Unsaturated fatty acids are primarily found in foods that are high in fats that are liquid at room temperature. Fish oil is particularly rich in omega-3 fatty acids, which are a type of unsaturated fat known for their heart health benefits and anti-inflammatory properties. This makes fish oil one of the best dietary sources of unsaturated fatty acids.

In contrast, the other options—red meat, whole milk, and sugarcane—are not significant sources of unsaturated fatty acids. Red meat is primarily composed of saturated fats, whole milk contains both saturated and some unsaturated fats, but it is not a key source compared to fish oil, and sugarcane does not contain fats at all, as it is primarily a carbohydrate source. Thus, fish oil stands out clearly as a key dietary source of unsaturated fatty acids.