Understanding Decision Fatigue and Its Impact on Eating Habits

After a long day, staring into the fridge and feeling unsure about what to cook could mean you’re experiencing decision fatigue. This affects not just daily eating choices but overall cognitive functions as well. Neuroscientist Shawn Watson has delved into this phenomenon, along with cognitive performance and age-related cognitive decline. Watson’s expertise in neuroscience significantly shapes his dietary habits.

He shared that nutrition plays a crucial role in brain health and performance, second only to sleep. Proper nutrition aids in long-term prevention of dementia and also enhances short-term cognitive functions. It influences work efficiency, patience with loved ones, and overall happiness. “It might seem trivial,” Watson remarked, “but your career advancement could hinge on what you eat for breakfast.”

Watson has become more conscious of his gut health and adjusted his diet, particularly avoiding artificially sweetened drinks. He notes that large studies associate their consumption with accelerated cognitive decline and a higher risk of dementia. Although the findings are correlational, frequent observations in multiple studies convinced him to make these changes.

What Shawn Watson Eats Daily

Breakfast: Watson starts with Multigrain Cheerios, adding a hefty scoop of flax and yogurt. He acknowledges, “Gut health is brain health,” emphasizing the importance of digestive health.

Lunch and Dinner: His meals primarily consist of vegetables, some protein, and a small serving of rice. He also consumes a stimulant-free brain drink mix he co-founded. He finds it helps fight decision fatigue and maintains mental clarity through the afternoon. Keeping lunch light is crucial for him; a heavy lunch makes it difficult to focus later in the day. His meals are intentionally simple to conserve cognitive resources.

Snacks: Watson realized his mid-afternoon desire to snack wasn’t due to hunger or lack of energy—it was often a signal of decision fatigue. He now questions whether he’s truly in need of food or if it’s just mild dehydration, often opting for water instead.

Dessert: While preferring savory foods, Watson enjoys ice cream but avoids pairing it with coffee. Consuming caffeine late could compromise his sleep, which he considers vital.

Managing Decision Fatigue in Meal Planning

Decision fatigue leads to choosing convenience over what’s best, Watson expressed, leading to reliance on fast food or takeout. To counter this, he suggests planning meals earlier in the day. Making dinner decisions after work, when mental fatigue is high, leads to less desirable choices. “Know your evening meal before walking through the door,” he advises, ensuring that decisions align with earlier expectations.