Eggs created by varying the hens’ diets. Some shell eggs on the market have altered fat content. For most people, dietary fat – especially saturated fat – has a much greater effect on blood cholesterol levels than dietary cholesterol. So, some eggs have reduced saturated fats and increased unsaturated fats. Other eggs are enriched with omega-3 fatty acids, the fats found in fish which are considered to be beneficial. Still other eggs have added vitamins, minerals or carotenoids. Check labels for nutrient facts.