Trans fats are the most evil of the bad fats. The Food and Drug Administration &amp;lt;a href=&amp;quot;http://www.fda.gov/ForConsumers/ConsumerUpdates/ucm372915.htm&amp;quot; target=&amp;quot;_blank&amp;quot;&amp;gt;banned trans fats &amp;lt;/a&amp;gt;from products in 2013, but they can still be found in many foods like crackers, cookies, doughnuts, muffins, pies and cakes, often in trace amounts that quickly add up. &amp;lt;a href=&amp;quot;http://www.ncbi.nlm.nih.gov/pubmed/16611951&amp;quot; target=&amp;quot;_blank&amp;quot;&amp;gt;Research&amp;lt;/a&amp;gt; from the Harvard School of Public Health has showed that the risk of heart disease rises by 23% for every 2% of calories obtained from trans fats. Ban these from your diet.