Trans fats have detrimental effects on heart health, as they increase levels of LDL (bad) cholesterol while reducing HDL (good) cholesterol. This imbalance raises the risk of heart disease by contributing to the buildup of plaque in the arteries, leading to cardiovascular complications. Research shows that even small amounts of trans fats can be harmful, making it essential to limit their consumption. People are encouraged to read food labels carefully and choose healthier fats, such as those found in nuts and oily fish, to support heart health.