We mean the yolks, not shells. If you’re one of the people who still isn’t sure if you should eat the yolk, here’s your answer: yes! While the whites are all protein, leaving the yolk to contain the fat and cholesterol, there’s no need to worry. The fat in yolks is mostly monounsaturated, and a study by University of Connecticut researchers found that the overall fat profile in egg yolks ultimately helps to reduce LDL (“bad” cholesterol). Not only will it improve your cholesterol, eggs are the number-one dietary source of a nutrient called choline. Choline, which is found also in lean meats, seafood, and collard greens, attacks the gene mechanism that triggers your body to store fat around your liver.
But wait, bile isn’t the only thing added in here, our pancreas also adds pancreatic digestive juices called lipase to the duodenum which helps break down triglycerides into two fatty acids and a monoglyceride. After this step, though, the fat droplets don’t just disappear. Instead the fatty acids and monoglycerides are absorbed in the microvilli (remember these from Digestion, part I?) and reassembled into triglycerides.
The overarching message is that cutting back on saturated fat can be good for health if people replace saturated fat with good fats, especially, polyunsaturated fats. (1, 15, 22) Eating good fats in place of saturated fat lowers the “bad” LDL cholesterol, and it improves the ratio of total cholesterol to “good” HDL cholesterol, lowering the risk of heart disease.
You read that right. Even bacon has healthy fats! We recommend going with old school, full-fat pork. While opting for turkey bacon will save you about 13 calories and a gram of fat per slice, it also adds sodium to your plate—which can lead to high blood pressure. Plus, pork offers more protein and heart-healthy monounsaturated fatty acids (MUFAS) than its poultry-based counterpart. Bear in mind that no matter which option you add to your breakfast plate, serving size matters, so don’t pig out. A few slices are all you need.