Walter Willett details daily diet and morning orange juice habits

Walter Willett, an 81-year-old professor of epidemiology and nutrition at the Harvard T.H. Chan School of Public Health and the most-cited researcher in his field with nearly 2,000 published research articles, has detailed his daily diet to The Washington Post, as reported by Directo al Paladar.

The Mediterranean Foundation

Willett centers his dietary habits around the Mediterranean diet, noting it holds the strongest scientific evidence for multiple health benefits.

Morning Routine and Cognitive Health

His daily routine begins with a breakfast of rolled oats combined with a cup of Greek yogurt, nuts, and fresh fruit, favoring blueberries for their studied protective effects against neurodegenerative diseases. He also includes a small glass of fresh orange juice every morning.

By the mornings I also have a small glass of orange juice. There are studies carried out in various cohorts that show that lower rates of cognitive decline occur when orange juice is taken regularly.

Walter C. Willett

Midday Meals and Busy Alternatives

While acknowledging that fruit juices contain high amounts of sugar, Willett maintains that limiting consumption to a single small glass daily fits his nutritional approach. For lunch, he typically eats a vegan meal consisting of a fresh vegetable salad with chickpeas, nuts, hummus, tofu, olive oil, and vinegar.

When pressed for time, he opts for whole-grain toast with peanut butter, jam, and honey, or avocado toast with olive oil and basil.

Evening Fare and Daily Snacking

Dinners feature more elaborate dishes built around chicken or fish paired with vegetables or whole-grain side dishes. Throughout the day, he snacks on raw apples and carrots to avoid high-calorie vending machine items.