Dr. Xiaoying Lou, a cardiac surgeon at the Cleveland Clinic, knows firsthand how vital nutrition is for protecting the heart. She performs complex operations that demand sharp focus and steady energy throughout long days. What people eat directly influences cholesterol, blood pressure, and inflammation that can lead to plaque buildup in arteries and heart valves. “Nutrition is one of the most important things we can control to protect the heart and reduce the risk of heart or stroke,” she explained. “What we eat directly affects cholesterol, blood pressure, and inflammation that leads to plaque buildup in arteries and heart valves.”
Mornings often feel rushed for Dr. Lou as she heads to the hospital. If she is running late, she grabs a protein shake paired with a banana for quick fuel she can consume on the go. This choice keeps her satisfied during surgeries thanks to the protein and nutrients. Other fast options include overnight oats mixed with fruit or whole-grain toast topped with avocado or peanut butter for healthy fats.
Weekends offer a slower pace. She enjoys relaxed meals with her family. They sometimes go out for a late breakfast where she orders dishes rich in eggs or oatmeal with apple and cinnamon. Her husband occasionally prepares spinach and feta omelets or blueberry pancakes for everyone to share.
Lunch rarely involves sitting down during her demanding schedule. She packs light items like leftovers from dinner or a whole-grain tortilla filled with hummus and vegetables. These portable choices fit into brief moments between patients. When time allows a rare visit to the cafeteria, she selects combinations like cauliflower, chicken, and mixed vegetables. Dr. Lou avoids heavy or high-carbohydrate meals to stay alert for the afternoon. “I try to ensure lunch isn’t too fatty or high in carbohydrates because I have to get through the rest of the day and can’t afford to be sluggish from a heavy meal,” she said.
Snacks play a central role in her routine given the unpredictable hours. She focuses on nutrient-dense options packed with protein and fiber that she can eat while writing reports or answering emails. Favorites include bananas, mandarins, apple slices with peanut butter, raw vegetables such as bell peppers, cherry tomatoes, and mini cucumbers, plain yogurt, nuts, and dried fruit. These keep her energized without interrupting her workflow.
After long shifts that sometimes skip lunch entirely, dinner needs to be quick and nourishing. Dr. Lou and her family prepare simple meals emphasizing plenty of vegetables alongside lean protein sources. Common choices feature oven-roasted vegetables with chicken or salmon, or stir-fried chicken and veggies in a wok. The focus stays on fresh produce and balanced portions to recover from the day.
Sweets do not tempt her strongly most of the time. Fruit usually satisfies any cravings. Occasionally, though, she indulges in quality ice cream as a treat. “Life is short and we shouldn’t completely give up food that brings us pleasure,” she advised. This balanced approach allows enjoyment without compromising health goals.
Dr. Lou’s habits reflect broader principles of heart-healthy eating widely recommended by medical experts. Diets rich in fruits, vegetables, lean proteins, whole grains, and healthy fats help lower cardiovascular risks. Foods like avocados, nuts, and fatty fish provide omega-3 fatty acids that reduce inflammation. High-fiber options such as oats and vegetables support stable blood sugar and cholesterol management. Protein from sources like chicken, yogurt, and plant-based items promotes satiety and muscle maintenance during physically and mentally taxing professions.
Maintaining consistent energy proves especially important for surgeons who stand for hours in the operating room. Quick, nutrient-focused meals prevent crashes that could affect concentration. Her emphasis on vegetables at dinner aligns with guidelines suggesting at least half the plate filled with produce for vitamins and antioxidants. Moderation in treats also mirrors advice that sustainable habits outperform strict restriction for long-term adherence.
What elements of Dr. Lou’s daily eating routine appeal to you most for your own busy lifestyle? Share your thoughts in the comments.





