What are the three essential foods for brain health? Experts reveal the secrets to "boosting cognitive function"

1. The "Invisible Start" of Cognitive Decline

Minor "forgetfulness" or "sluggish thinking," often mistaken for stress or fatigue, may be signs that brain function is beginning to decline. It's important not to dismiss them as "just stress" or "just menopause" and to address them early. This is because inflammation, blood flow irregularities, and the accumulation of oxidative stress might be gradually damaging the brain.

Recent studies have shown that nutrients with antioxidant properties, such as lutein, can reduce brain inflammation and mitigate damage to nerve cellsinfomoney.com.br+5infomoney.com.br+5pt.wikipedia.org+5.

2. Expert Perspectives

• Nutritionist Mercedes Engemann
  warns that diets high in saturated fats and low in vitamins and minerals increase reactive oxygen species, which can damage nerve cells.
  
  

• Neurologist Lucia Sabara
  expresses that "food is not just energy, but a direct message to the body," emphasizing the importance of nutrients in regulating neurotransmission.
  
  

3. Effects and Reasons by Ingredient

3.1 Coffee (Caffeine)

Intake of 200mg of caffeine showed better results in cognitive tests compared to those taking a placebo. Engemann also states that caffeine and flavonoids are effective in improving short-term memory and reaction speed.

• Benefits: Improvement in concentration, attention, and reaction speed

• How to Consume: Black coffee/latte, etc. (recommended to limit sugar)

• Caution: Consideration for insomnia and anxiety due to excessive intake

3.2 Leafy Green Vegetables (such as Broccoli)

Leafy green vegetables are rich in vitamin K and fat-soluble antioxidants, supporting concentration and memoryinfomoney.com.br. Furthermore, a deficiency in folic acid is considered a risk for memory impairment and is an important component for brain nerves.

• Benefits: Stress reduction, anti-inflammatory, neurotransmitter support

• Ways to Eat: Salads, warm salads, toppings for miso soup, etc.
  
  
  

3.3 Fermented Foods (Yogurt, Pickles, Natto, etc.)

A review of 45 studies reports that fermented foods help maintain memory and delay cognitive declinept.wikipedia.org. It is believed that probiotics improve gut health, which positively affects the gut-brain axis.

• Benefits: Gut health improvement → Reduction of inflammation throughout the brain

• Ways to Eat: Easy to incorporate into daily meals such as yogurt, natto, kimchi, miso soup, pickles, etc.
  
  

4. Additional Key Points

• Focus on Balanced Diet: Pay attention to the balance of fats, carbohydrates, and proteins, and reduce processed foods and saturated fats.

• Antioxidant and Anti-inflammatory Nutrients: Along with lutein and folic acid, intake of vitamin B group and omega-3 fatty acids is also important.

• Combination with Other Daily Habits: Exercise and adequate sleep are also directly linked to cognitive function.
  
  

5. Techniques for Incorporating into Japanese Lifestyle

Recipe Examples

• Japanese-style Green Power Smoothie: Spinach + Komatsuna + Banana + Yogurt + Honey

• Natto Broccoli Salad: Simply boil broccoli with salt and mix with natto for an easy side dish

• Matcha Café Latte: Consume caffeine and flavonoids with matcha + milk

• Miso-marinated Root Vegetable Soup: Add pickled vegetables to a hearty miso soup to double the fermentation effect

Tips for Habit Formation

• Make a morning cup of coffee or matcha a routine

• Always include at least one plate of greens per meal

• Incorporate fermented foods in every meal or at least one item daily
  
  

6. Precautions and Common Questions

7. Scientific Evidence Supplement

• Flavonoids like lutein reduce brain inflammation and oxidative stress, inhibiting cognitive decline.

• Caffeine has short-term cognitive performance improvement effects.

• Vitamin K and folate in leafy green vegetables are effective for neurotransmission and improving blood flow.

• Probiotics in fermented foods contribute to mental and cognitive health through the gut-brain axis.
  
  

✅ Summary

1. Caffeinated beverages such as coffee and matcha: Temporarily boost concentration and memory

2. Leafy green vegetables (such as broccoli and spinach): Antioxidants and folic acid for nerve protection

3. Fermented foods (such as natto and yogurt): Support health from the gut to the brain
   
   
   

By combining these with a balanced diet and regular lifestyle habits, you can "organize your brain from the inside." The small choices you make every day protect your "unchanging memory" in the future. Please start from today's dining table.

📚 References

• “Os 3 alimentos essenciais para a saúde do cérebro”, InfoMoney, published in June 2025pt.wikipedia.org+8infomoney.com.br+8infomoney.com.br+8

• “Nutrição e cognição” (Wikipedia Portuguese version)pt.wikipedia.org+3pt.wikipedia.org+3pt.wikipedia.org+3

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