If you want to keep your brain healthy, the followings are the food I recommand you to eat:
Green Tea
Green tea prevents an enzyme found in Alzheimer’s disease and is also rich in polyphenols, antioxidants that help prevent premature brain aging. Drink two cups a day to get the brain benefits. To decaf tea, steep for 45 seconds and pour out the water, add fresh hot water to the leaves or tea bag — 95% of caffeine will be eliminated.
L-carnitine Foods
Age-related memory problems are many times caused by plaque buildup and diminished blood supply to the brain, compromising the delivery of nutrients and oxygen. L-carnitine, an amino acid manufactured in your liver, increases circulation in the brain — among a myriad of powerful benefits for your health. Also, because it prevents fat oxidation in the brain, L-carnitine shows some promise in preventing Alzheimer’s disease. Good sources of L-carnitine include: meats, fish, poultry, wheat, avocado, milk, and fermented soybeans.
Fish
Protein, an important component in the making of neurotransmitters, is essential to improve mental performance. Aside from being an excellent source of high quality protein, fish are packed with essential oils, such as Omega-3, which protect the brain and supports its development and functioning. Deep sea fish have the highest amounts of fatty acids, and they include salmon, sea bass, halibut, mackerel, and sardines.
Oil: Monounsaturated Fats
Monounsaturated fats contain essential fatty acids and gamma-linolenic acid (GLA), which are crucial for brain development and function, among many other excellent benefits for your health. Olive oil, sesame oil, canola oil, almond oil, flaxseed oil, and fish oil are rich in monounsaturated fats and are good choices for brain health. Population studies show that people with a diet that is high in unsaturated, unhydrogenated fats may have a reduced risk of Alzheimer’s disease, whereas those with a diet that is higher in saturated fats and trans fats have an increased risk.
Nuts and Seeds
Nuts and seeds are wonder foods for your brain. Packed with protein and essential fatty acids, nuts and seeds are also chock full of the amino arginine, which stimulates the pituitary gland at the base of the brain to release growth hormone, a substance that declines quickly after age 35; this is a real anti-aging boon to your brain!
Microalgae
Microalgaes from the ocean and uncontaminated lakes, including blue-green algae, spirulina, chlorella, seaweed, and kelp are easy-to-digest, high protein and high-energy supplements-and contain over a hundred trace minerals! Available in your health food store, microalgae are simple to incorporate into your diet to ensure a good, strong brain function. Look for powders you dissolve in juice or flakes you can sprinkle on your food.
Blueberries
These delicious berries are full of powerful antioxidants, which eliminate free-radical damage that causes aging, and they also possess neuroprotective properties that can delay the onset of age-related memory loss by guarding brain cells from damage caused by chemicals, plaque, or trauma. And they combat inflammation, the other factor in aging.