This document discusses the negative health effects of fast food consumption. It states that high levels of fat and sodium in fast food can lead to heart disease, and trans fats can cause fatty liver deposits over time and liver dysfunction. Eating fast food as little as once a week increases the risk of heart disease by 20%. Fast food also affects energy levels by putting stress on the metabolism and causing blood sugar spikes and drops. However, the document provides some tips on making healthier choices when eating at fast food restaurants, such as choosing grilled options over fried foods.