Well, this is from the Alzheimer's Prevention Foundation. It looks like they advise a lean, high fiber, low in simple carb plan. They advise against trans-fats, and encourage complex carbs. Read on:
"Your brain, although one of the most complex organs of your body, is still flesh and blood. That means that, just like any other part of you, it needs adequate high quality fuel while at the same time avoiding foods that damage the brain.
The first change you can make in your diet is to reduce your fat intake to about 15-20% of your total calories. However, even more important is the quality of the fat your eat. Our modern diet is high in saturated, hydrogenated, and trans fats, all of which are harmful to our brains. Trans fats may be the most harmful. They are found in margarines, cookies and many types of processed foods. They disrupt the production of energy in the mitochondria (the energy factories) of brain cells.~
In place of these harmful fats use monounsaturated oils like olive oil, and omega-3 oils from flax and cold-water fish.
A diet rich in vegetables and fruits is also important. Because the brain is composed mainly of fat it is very susceptible to oxidation. Vegetables and fruits have high levels of antioxidants that help neutralize the free radicals produced by oxidation.
Adequate fuel for your brain is also important. Your brain uses glucose exclusively as a fuel. In fact, it uses 25% of the total amount of energy your body produces. Refined carbohydrates and sugars can cause your blood glucose levels to swing widely. Memory suffers when your blood glucose is low. For maximum efficiency your brain needs a steady supply of glucose, and this is best achieved with a diet rich in complex carbohydrates and at least 30 grams of fiber a day.
Foods that feed the brain:
1. Omega-three fatty acids found in fish, flax oil and spinach
2. Colorful vegetables that are rich in antioxidants
3. Whole foods such as brown rice, whole wheat bread and pasta, and legumes
4. Clean protein from organic meats, fish, soy and legumes.
Foods that harm the brain
1. Excess saturated fat (meat, cheese, and fried food)
2. Trans fat (margarines, baked goods, chips, fast food)
3. Excess calories~
4. Refined carbohydrates like, white rice, white bread, chips, pasta, and cookies."
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