This report examines dietary fat guidelines in the UK and US, focusing on the impact of fat intake on women (20-40 years) and children (1.5-3 years). It compares the recommended levels of total fat, saturated fat, monounsaturated fat, and polyunsaturated fat in both countries. The report highlights that while the UK faces challenges with unhealthy eating habits leading to obesity, the US struggles with nutrient deficiencies. It analyzes the consequences of these dietary patterns, including increased risks of cardiovascular diseases, obesity, and malnutrition, particularly among young women and infants. The report also discusses the role of food standards agencies in promoting healthy eating habits and outlines the factors influencing dietary choices, such as convenience. It concludes by emphasizing the importance of adhering to dietary guidelines to mitigate health risks associated with unhealthy eating patterns and provide a better understanding of the impact of different types of fats on overall health.