As with many other food topics, fats are discussed as both 'good' and 'bad'. Good fats (unsaturated) are those that are derived from plants, like olives (and olive oil not Olive OylTM) and flaxseed. Bad fats (trans fats) are altered through food processing (saturated) and are often derived from meats and cheeses.
For some quick tips on making choices about which fats to include in your diet, visit the Harvard's School of Public Health web site. To understand exactly what processes occur to create trans fats, visit the FDA's website.
For a look at an interesting experiment that goes well beyond just fats, watch Super Size Me, directed by Morgan Spurlock.
Post developed by EHPL Children's Librarian, Kathleen Sands