Breakfast, Lunch, Or Dinner? Which Meal Matters Most For Brain Health?
At mindbodygreen, we talk about the connection between diet and brain health all the time. What you eat impacts brain structure, function, and cognitive health (short-term and long-term). Now, new research1 suggests that when you eat it that may matter most for your memory.
Here's what meal has the most influence on cognition, as well as what foods help (or hurt) your brain power.
About the study
Researchers set out to answer a question, "Do dietary patterns at specific meals (breakfast, lunch, and dinner) affect memory differently than overall diet?"
To find out, they analyzed meal-specific eating patterns and measured two types of memory.
- Subjective memory is how participants perceived their own memory.
- Episodic memory is actual recall performance on cognitive tests.
And rather than looking at diet as a whole, they broke it down by meal timing.
Dinner was linked to the most brain benefits
The meal that showed the strongest associations with memory outcomes was dinner. Results showed that what people ate in the evening had a more pronounced impact on cognitive performance than their breakfast or lunch choices, or even their overall dietary patterns.
The study revealed several notable patterns about evening meals and brain health.
- Western-style dietary patterns were linked to poorer memory performance overall. This includes meals with little fiber, very large portions of animal proteins, and added sugars.
- Cheese consumption was the strongest predictor of poorer subjective memory. This is interesting because another recent study found that cheese consumption was linked to a lower risk of dementia. Although the benefits of cheese may also come down to the quality and amount consumed.
- Milk-based products and sweets were most detrimental for episodic memory (actual recall ability).
- Younger adults showed the strongest negative effects, suggesting early dietary habits may have immediate cognitive consequences.
So, should we just avoid animal proteins and opt for plants? Nope! The results also showed that simply following a plant-based diet didn't automatically protect against the negative effects of unhealthy supper choices. And previous research even shows that including meat in your diet may help slow brain aging.
What does this mean? It's not about eliminating meat in favor of plants. You need to eat a balanced plate with fiber, quality protein, and limited amounts of added sugar.
How to structure your evening meals
Strategically structuring your evening meals can help fuel your brain and make sure you stay full and satisfied until your morning meal.
- Pair with fiber-rich foods: When you do have cheese or dairy at dinner, make sure it acts as an addition to fiber-rich foods (like vegetables, legumes, whole grains). Sometimes, dairy can sit heavy in the digestive tract, and fiber helps keeps things moving as they should. Most of us aren't eating nearly enough fiber anyway, so this is a win-win.
- Be mindful of portions: When it comes to foods like animal proteins and dairy, portion size is key. A modest one-ounce serving of good cheese alongside a fiber-rich salad is very different from a cheese-heavy pasta as the main event. And for animal proteins, aim to find a portion size that still provides enough protein, but doesn't go overboard. For many folks that may be around 3 to 6-ounces of poultry, beef or fish.
- Consider timing: Give yourself adequate time to digest before bed. A lighter, earlier supper may support both your sleep and your brain, and research shows your sleep patterns can reveal a lot about your brain's age.
- Swap strategically for dessert: If you have a sweet tooth, reach for something like berries with a square of dark chocolate instead of processed sweets. You'll get satisfy your sweet tooth, yet the sugar won't keep you from falling asleep. These fruits can actually help you fall asleep.
The takeaway
This research offers a fresh lens on brain health. And while your overall diet is important, dinner may play an especially vital role on your cognition. Tonight, start with adding an extra serving of vegetables to your dinner plate. Your brain may thank you for it.