Saturated fats (typically from animal sources) have been a staple in many world cultures for millennia. Unsaturated fats (e. g., vegetable oil) are considered healthier, while trans fats are to be avoided. Saturated and some trans fats are typically solid at room temperature (such as butter or lard), while unsaturated fats are typically liquids (such as olive oil or flaxseed oil). Trans fats are very rare in nature, and have been shown to be highly detrimental to human health, but have properties useful in the food processing industry, such as rancidity resistance.[citation needed] COUNT 5
QSN1 Where do saturated fats in a diet typically originate from? ANS1 animal sources QSN2 Which kind of fat is generally considered to be healthiest? ANS2 Unsaturated fats QSN3 Which type of fat should people attempt to avoid? ANS3 trans fats QSN4 What kind of state of matter do unsaturated fats typically have at room temperature? ANS4 liquids QSN5 Although trans fats are harmful to human health, what property do they have that makes them useful in food processing? ANS5 rancidity resistance