Trans fats have detrimental effects on health, contributing to inflammation, insulin resistance, and an increased risk of heart disease. They are known to raise bad cholesterol (LDL) levels while lowering good cholesterol (HDL). Consuming trans fats can lead to weight gain and obesity, as they often appear in processed foods, which may negatively impact the metabolic function. Health organizations recommend limiting trans fat intake to promote overall well-being and reduce the risk of chronic conditions.