How can we tell what fats are saturated and
which ones unsaturated?

Saturated fatty acids lack double bonds between the individual carbon atoms, while in unsaturated fatty acids there is at least one double bond in the fatty acid chain. Saturated fats tend to be solid at room temperature and from animal sources, while unsaturated fats are usually liquid and from plant sources.

Saturated fatsOr things like potato chips and unhealthy stuff unsaturated fats or natural fats like avocado olive oil coconut oil