What do solid fats have a high proportion of?

Solid fats have a high proportion of saturated fatty acids.

Here's why:

* Saturated fatty acids have a straight, linear structure, which allows them to pack closely together. This close packing makes them solid at room temperature.

* Unsaturated fatty acids have kinks in their structure due to double bonds. These kinks prevent them from packing tightly, making them liquid at room temperature (oils).

Examples of solid fats include butter, lard, and shortening. They are often found in processed foods and contribute to increased cholesterol levels.