Nutrition advice can be overwhelming, but three key rules can help you eat healthier without sacrificing taste. First, create a balanced plate with a focus on flavor and variety. Aim for 20g of protein, fill half your plate with plants, and include a quarter of protein-rich foods and a quarter of whole grains or fiber-rich carbs. Second, add nutritious foods to your diet rather than focusing on restrictions. Swap snacks like crisps for healthier options like Greek yogurt with berries. Finally, make water your default drink, avoiding sugary beverages. Three common mistakes to avoid include fixating on calories over nutrients, neglecting protein and vegetables in lunch, and expecting perfection from individual meals. Instead, focus on overall dietary patterns and plan ahead with simple staples to build balanced meals.