17 Amazing Health Benefits of Walnuts
Thursday, July 4, 2019
It is the healthiest
dry fruit, thanks to the balanced composition of its fats, which reduce
cholesterol and are good for the heart. In addition, it provides valuable healthy
nutrients.
"Nuez" derives from the Latin nux. And
the Latin name of the tree, Juglans ,means " jovins
glans ", "seed of Jupiter", which is, in turn, the Latin
version of the Greek Theos balanos, meaning "seed of
Zeus", which is as much as saying "seed of God".
Although there are 21 species of walnut, the four main ones
are: the Persian or European walnut (Juglans regia), which originated around the Caspian Sea, although
some authors believe that it comes from the Himalayas, China or Japan; and
black walnuts (J. nigra), white
(J. cinerea) and Californian (J. californica), of American
origin.
The Persian variety is the most popular and is characterized
by being large and relatively thin shell. It was introduced in Europe by
the Romans in the 4th century.
The black is smaller, hard and more intense
flavor. White is sweeter and more unctuous and difficult to find in the
market. Currently, the main world producers are China, the United States,
Iran and Turkey. The fruits are harvested in December, but dried are on
the market all year round.
Properties of the nut
Such nuts provide a variety of nutrients such as
proteins, lipids, fiber, antioxidants, sterols, vitamins B and E and minerals,
such as potassium, iron, zinc,
magnesium and calcium. While it has a source of monounsaturated fats and
are rich in omega-3 fatty acids.
While in other nuts the proportion of omega 6 is much higher
than that of omega-3 (40 to 1 in the almond, for example), which may favor
inflammation if the disproportion is not corrected through other foods, in
walnut the ratio is 5 to 1, much more balanced.
Only 9% is saturated fat, 14% is beneficial monounsaturated
and 77% is polyunsaturated, of which, 13% is from the omega 3 family. This is
part of the secret of the most studied property of nuts: its protective effect
against cardiovascular diseases.
It also provides protein (15%) and presents a
remarkable percentage of vitamin E, vitamins of group B, and minerals
and trace elements such as phosphorus, magnesium, manganese, copper, zinc
and iron.
1. Properties that fight cancer
The high percentage of antioxidants and nutrients found in
nuts has been shown to help prevent the risk of cancer.
Several researches affirm that the intake of walnuts reduces
the risk of cancer up to 30-40% in the cases of prostate and up to 50% in
breast cancer.
Some of the properties of the nut that favor the prevention
against cancer are vitamin E (and more specifically the so-called
gamma-tocopherol) and the reduction that makes endothelin levels.
Gamma-tocopherol (very abundant in nuts) has been shown to
help fight breast, lung, and prostate cancer.
Also, nuts reduce the levels of endothelin, a compound that
increases the inflammation of blood vessels.
The omega-3 fatty acids, along with the phytosterols found in
nuts have been shown to help slow the growth of breast cancer tumors.
According to researcher W. Elaine Hardman of Marshall Medical
University, "Phytosterols bind to estrogen receptors, so it could slow the
growth of breast cancers."
"Although future studies are needed, we are optimistic
about the role of miRNAs as biomarkers of disease and prognosis. They may
show a possible therapeutic target for the treatment of colorectal cancer.
"
2. Benefits for the heart
Most studies on walnut have focused on the benefits of this
for the heart and circulatory system.
Nuts contain amino acids such as L-arginine, which offer
multiple vascular benefits to people with heart disease, or those at higher
risk of heart disease.
In the case of having herpes, it may be better to avoid or
limit the nuts, since high levels of arginine can deplete the amino acid
lysine, which can trigger herpes recurrences.
Nuts also contain omega-3 fatty acids, alpha-linolenic acid
and vegetable-derived fat that is anti-inflammatory and can prevent the
formation of pathological blood clots.
Different studies show that people who eat a diet rich in
vegetable fats are less likely to have a heart attack (almost 50% less).
Eating only four nuts a day significantly increases blood
levels of vegetable-derived fat for the heart, and maintains healthy
cholesterol levels.
3. Reduce the risk of diabetes
The consumption of nuts has been shown to be directly related
to the possibility of reducing the risk of suffering from type 2 diabetes.
According to the report published in the Journal of the American
Medical Association made exclusively to women, it is suggested that the
benefits of these nuts could be extended to the entire population.
In total, 84,000 North Americans aged between 34 and 59 years
were evaluated over a period of 16 years. Women who took about 28 grams a
day (the equivalent of walnuts that fit into a fist) at least five times a week
had about 27% less risk of developing type 2 diabetes.
If the consumption was limited to an average of between 1 and
4 times per week, the risk diminished 16% in comparison with those who had not
tried them.
The results clarify that nuts should not be added to the diet
without more, but should replace other foods to prevent caloric consumption
from 'firing'.
4. The best antioxidant
Antioxidants are an indispensable component for our
health. These, prevent wear and excessive cell aging.
We live in a world that moves faster and faster and that
demands more and more of us. Our life is full of chaotic situations and
that lead us to physical and mental wear, therefore, a small dose of
antioxidants is essential in our diet.
Small amounts are needed, which vary according to various
conditions such as age, physical activity, eating habits and health conditions.
Nuts contain several unique and powerful antioxidants found
only in a few common foods. These include juglone quinone, tellimagrandin
tannin and morin flavonol.
In addition, it has powerful antioxidants to eradicate free
radicals that has attracted the attention of scientists.
Research has shown that walnut polyphenols can help prevent
chemically induced liver damage.
As a conclusion to this, it can be said that nuts are rich in
the antioxidant polyphenol, which, when linked to lipoproteins, inhibits the
oxidative process that leads to atherosclerosis in vivo.
5. Help to have a healthy mind
Nuts contain a number of neuroprotective compounds,
including vitamin E, folic acid, melatonin, omega 3 fats and antioxidants.
Various scientific sources show that the consumption of nuts
can help mental health, including the increase of inferential reasoning in
young people.
A study also found that consuming foods high in antioxidants
such as walnuts can reduce the vulnerability of oxidative stress that occurs
with aging, increase the health span, and also improve the cognitive and motor
function of aging.
As recently proved by neuroscientists at the University of
Boston (USA), adding nuts to our diet improves the performance of tasks that
need motor skills.
This is because it improves the connection between neurons
because of its high content of polyphenols and other antioxidants.
A study published recently in the journal Neurochemical
Research suggested that the extract of nuts (the dried fruit once removed its
fiber) has protective effects against oxidative stress and cell death that
occur in the brain of Alzheimer's patients. And all thanks to its content
in alpha-linolenic acid (ALA), an omega-3 fatty acid of vegetable origin.
The journal Neurochemical Research reported that nut extract
(the dried fruit once its fiber is removed) has protective effects against
oxidative stress and cell death that occurs in the brain of Alzheimer's
patients.
The main cause of this is its content of alpha-linolenic
acid, an omega-3 fatty acid of vegetable origin.
6. Get a flat belly
Years ago, if your goal was to lose weight, nuts were understood as a food to avoid. Instead,
more and more are the nutritionists who recommend them as a fundamental part of
the weight loss plan.
They have contrasted the results of taking a handful of nuts a
day for abdominal reduction and fat in that area.
Despite concentrating energy and containing fats, its
nutritional quality and consumption in small quantities on a daily basis can
improve cardiovascular risk factors and thereby help to lose belly and treat obesity
and its associated diseases.
Despite containing fats and a good amount of energy, its
consumption in small daily amounts helps to lose belly, improves cardiovascular
risk factors, and their associated diseases.
If it is very monotonous to take them raw, as it is a small
food with a not too strong flavor, it can be easily included in our diet by
means of salads or included in a meal.
7. Increase fertility in healthy men
One of the great secrets of nuts is its possible impact on
male fertility in men who carry a Western-style diet.
Adding 75 grams (a little more than half a cup) daily,
significantly improves the quality of sperm, including vitality, mobility and
morphology.
Walnuts could improve sperm quality in healthy men according
to various studies, but now, researchers want to know if they help men with
fertility problems.
Their study is based on the evidence that men's dietary and
lifestyle habits could affect their fertility.
Previous research showed that men with "poor" sperm
noticed an improvement after taking fish oil supplements rich in omega-3 fats.
8. Nuts are good for the brain
It is said that when a fruit resembles a part of the body is
that it is good for that part. Nuts are rich in healthy fats and the brain is
made up of them, plus:
They are rich in Omega 3, a nutrient that prevents insomnia,
nervousness and depression and anxiety.
9. Nuts improve dry skin
When you have dry skin wrinkles appear (yes, even if you are
20 years old) the skin is peeling and if you go to more you can suffer eczema.
Luckily nuts prevent these symptoms because they are rich in
zinc, copper and Omega 3, nutrients that improve the dryness of both your skin and your hair.
10. Eating nuts can prevent dandruff
One of the reasons for suffering from dandruff is the extreme
dryness of the scalp, either:
As you just read the nuts prevent the dryness of your body,
preventing, consequently, your dandruff problems.
11. Walnuts are rich in calcium
Being so beneficial for the bones that are recommended
especially in women with menopause.
Along with other nuts, they are the ideal alternative when
dairy products do not feel good at all.
12. Walnuts lower "bad" cholesterol
Known as LDL or "bad cholesterol" this substance
builds up in your arteries causing circulation problems that can end up in
strokes.
The nuts, thanks to their contribution of Omega 3 and Omega
9, reduce the bad cholesterol by increasing the good.
13. Better aging
A study from the Hospital Clínic of Barcelona and the Loma
Linda University (United States) showed that the daily consumption of walnuts
can help to have healthy aging.
14. Regulate the bacterial flora
Another of its benefits is the regulation of the bacterial
flora of the intestine. While they also provide a great function
satisfying hunger.
15. Increase serotonin levels
Various studies have also shown that nuts give us energy and
positivity. This is because they
increase serotonin levels in the brain, which is directly
responsible for offering better well-being.
16. Anti-inflammatory action
Nuts work as a natural anti-inflammatory, thanks in part to
mineral zinc and omega-3 fatty acids.
17. Help the immune system
Vitamin E and the antioxidants of the nut provide benefits
and defend us from some bacteria. With it, the immune system is
strengthened and we get less sick.
Why You Should Eat Walnut Skin
The outer layer of a peeled walnut - the whitish, peeling (or
sometimes waxy) part - has a bitter taste, but will resist the need to remove
it. It is believed that up to 90 percent of the antioxidants in nuts are
found in the skin, being one of the healthiest parts of consuming.
However, be aware that nuts are highly perishable and their
healthy fats easily break down. If you buy peeled walnuts in bulk, avoid
those that look wrinkled and smell rancid, or those that cannot prove that they
are fresh. The nuts should be stored in hermetically sealed containers in
your refrigerator or freezer, peeled or not. Nuts are good as a quick and
easy snack, but if you do not like the taste you can still get its therapeutic benefits
by mixing them in shakes or smoothies, or you can try other types of nuts
available.
You can improve the quality of the nut by soaking it in water
at night, which tends to reduce some inhibitors of enzymes and phytic
acid. After soaking, you can dehydrate them at a lower temperature,
approximately 105 to 110 degrees Fahrenheit until they are crisp again, as they
are much richer crispy.
Snacks are usually the perfect complement to arrive without
anxiety at mealtime. And nuts,
because of their high content of healthy nutrients for the organism, become the
ideal aperitif to drink without neglecting your body or your health.