The main fuel for the brain is glucose. Omega-3 fatty acids
play an important role in making up the brain. Vitamins and minerals
help the brain functions at its peak and protect the brain from damage.
So what are the best brain snacks? What
foods can we eat to improve concentration, memory, focus and maybe even
be a bit quicker with the answers?
Since glucose is the main brain fuel, you need to have carbohydrates—but, they should be complex carbohydrates as you would find in whole grains such as whole grain pasta
and brown rice. There are two main reasons to go for whole
grain/un-processed foods as a source of carbohydrates. The first is
that the complex carbohydrates
smooth out the “highs” and “lows” of the sugar release—so you don’t get
the sugar highs or the sugar lows. This helps ensure that your brains
doesn’t run on high octane one minute and then on fumes the next.
The other reason to go for the whole grains is that you get more bang
for your nutritional buck—food processing removes vital nutrients. Yes,
often manufacturers “fortify” the food with vitamins and minerals, but
its not in the same amounts or even the same nutrients. And, why should
you pay more for something that is not as nutritious as you could be
getting?
The omega-3 fatty acids such as EPA
(eicosapentaenoic acid) and DHA (docosahexanoic acid) are vital
components of the brain cell membrane and essential for proper brain
function. These fatty acids are found in fish, fish oils and nuts.
Another omega-3 fatty acid that you may not have heard about is ALA
(alpha-linolenic acid) and is found in high concentration in flax seeds.
Other fats and compounds known as
phospholipids are also extremely important for brain function and the
ability to increase concentration. Choline is one of the types of fats
that is very important—choline gets incorporated into cell membranes and
helps them stay flexible and fluid. Choline is also one of the
precursors for one of the main neurotransmitters, acetylcholine.
Choline was recently reviewed for its potential to help in concentration
and memory, particularly in older adults, and was found to be
beneficial.
Various vitamins are also essential for
concentration, memory and overall brain function. The B vitamins are
necessary for the synthesis of various neurotransmitters—the chemical
substances that act as messengers between brain cells. Other vitamins
such as vitamins C, D and E and the beta-carotenes are also turning out
to be very important in brain functioning.
The other side of the coin is foods that
help protect the brain. The various biochemical reactions that are
constantly going on produce a class of substances called free radicals.
This is a normal part of the function of any living organism.
Problems, however, occur when there are too many free radicals and the
brain cannot get rid of them. This is where anti-oxidants can be very
helpful in “clearing” the brain. Anti-oxidants include some of the
vitamins already mentioned—Vitamins C and E. Bio-flavenoids from fruits
and vegetables are also potent anti-oxidants.
Sources of fat
• Omega-3: Fish
and fish oils are some of the best sources of omega-3 fats. Having
fish 2-3 times a week is a good way to get these fats. Frozen fish is a
good second choice if you don’t live near the coast and don’t have a
good source of fresh fish. Krill oil is a great source as well.
Another good source of EPA and DHA are nuts—almonds, walnuts and pecans to name a few. You can snack on nuts throughout the day. They are also a good source of protein and complex carbohydrates.
Still another great source of omega-3 fats is flax seed,
including the omega-3 ALA. Many people are a bit at a loss as to how
to use flax seed. One way is to grind it up and sprinkle it over salads
or vegetables as a kind of garnish. Another way is to simply add the
seeds to your morning cereal bowl or to toss a handful into your
stir-fry just as the stir-fry is about ready.
Sources of choline and other phospholipids
• Beef liver is a great source of choline. OK—its not exactly a snack food, but it IS a good source!
Other good sources of choline and other phospholipids are eggs, cauliflower, navy beans, tofu and, once again, nuts. Soy beans (used to make tofu) have used been as a source of lecithin, a series of phospholipids, in the food industry where the soy lecithin acts as a lubricant and a mixing agent. You can make a mixture of nuts and soy beans and have those as snacks.
Other good sources of choline and other phospholipids are eggs, cauliflower, navy beans, tofu and, once again, nuts. Soy beans (used to make tofu) have used been as a source of lecithin, a series of phospholipids, in the food industry where the soy lecithin acts as a lubricant and a mixing agent. You can make a mixture of nuts and soy beans and have those as snacks.
Sources of anti-oxidants
•
Highly colored fruits and vegetables are great sources of Vitamins C,
E, beta-carotenes and the flavenoids. The flavenoids are most highly
concentrated in berries. A smoothie made with frozen berries is a great
snack, especially on a hot day! Some of the best berries for
anti-oxidants are blueberries, strawberries and cranberries.
Sourced of B-vitamins
• B-vitamins are found in leafy-green vegetables, whole grains, eggs, dairy products and meats. And .... you guessed it....they are found in nuts as well.
Sourced of needed minerals
Iron
• Green leafy vegetables, grapes and raisins, beets, soy beans, figs, asparagus, sunflower and sesame seeds.
Magnesium
• Green leafy vegetables, honey, almonds, seafood, pecans.
Manganese
• Green leafy vegetables, celery, whole grains, bananas, beets, egg yolks, walnuts, pineapples, asparagus.
Phosphorus
• Bananas, mushrooms, nuts, oats, beans, squash.
Potassium
• Spinach, fruits and berries, tomatoes, mushrooms, pecans, rice, Brussels sprouts.
• Green leafy vegetables, grapes and raisins, beets, soy beans, figs, asparagus, sunflower and sesame seeds.
Magnesium
• Green leafy vegetables, honey, almonds, seafood, pecans.
Manganese
• Green leafy vegetables, celery, whole grains, bananas, beets, egg yolks, walnuts, pineapples, asparagus.
Phosphorus
• Bananas, mushrooms, nuts, oats, beans, squash.
Potassium
• Spinach, fruits and berries, tomatoes, mushrooms, pecans, rice, Brussels sprouts.
Calcium
• Nuts (especially almonds, brazil nuts, pecans and cashews), legumes, figs, raisins, brown rice, fruits such as apricots, figs, dates, papaya and avocados.
Chromium
• Brewer’s yeast, clams, whole grains.
• Nuts (especially almonds, brazil nuts, pecans and cashews), legumes, figs, raisins, brown rice, fruits such as apricots, figs, dates, papaya and avocados.
Chromium
• Brewer’s yeast, clams, whole grains.
Zinc
• Mushrooms, liver, soy beans, sunflower seeds, brewer’s yeast.
Copper • Mushrooms, liver, soy beans, sunflower seeds, brewer’s yeast.
• Black strap molasses, soy beans, Brazil nuts, raisins and legumes.
Iodine
• Any seafood, kelp, beets, grapes and mushrooms.
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