Tag Archives: carotenoids

Cantaloupe – a sweet fruit that protect our sight.

Cantaloupe is a strange word for a fruit, but when we consider that cantaloupe was first cultivated in the Italian village Cantalupo, around AD 1200, it makes more sense.

This fruit, with his bright colors, belongs to the same family as the cucumber, squash, pumpkin, and gourd . It contains strong compounds that not only helps to protect your sight, but also controls your blood pressure. lowers your cholesterol level, keeps your blood running smoothly, and protect you against cancer.

“Cantaloupe is one of the few fruits or vegetables which are rich both in vitamin C and beta-carotene,” says John Erdman, PhD, professor of nutritional sciences at the University of Illinois in Urbana.
These antioxidant compounds have been shown to protect against cancer, heart disease and other age-related health problems, such as cataracts.

Cantaloupes are loaded with carotenoids, the pigments that give fruits and vegetables their bright colors and provide strong health protection. A study in the Netherlands found, that eating carotenoid-rich fruits caused a 35% less risk of developing age-related macular degeneration, the leading cause of irreversible blindness in developed countries.

Cantaloupe gives also protection for another aspect of sight problems: cataracts. Another study found that women who got the most vitamin A through their diet had a 39% reduced risk of developing cataracts. Once beta-carotene is inside the body, it is converted to vitamin A. Another study found that people whose diets included the most vitamin A, cut their risk of cataract surgery in half.

Cantaloupe is a rich source of two potent antioxidants: vitamin C and beta-carotene. As I wrote before, antioxidants are compounds that neutralize free radicals, which can cause cellular changes that can lead to heart disease, cancer and cataracts.

Vitamin C, like potassium, helps to keep the arteries clear and blood moving smoothly by preventing bad LDL cholesterol from oxidizing and clogging the artery walls. Vitamin C is also used by our body to produce collagen, a protein that makes up skin and connective tissue.

Cantaloupe is an excellent source of vitamin C and beta-carotene. One cup contains 68 mg vitamin C, which is 113% of the Daily Value for this vitamin. Half a cantaloupe provides 5 mg beta-carotene, which is about half of the daily amount recommended by most experts.

Important Tips
Cutting cantaloupe under water keeps it longer fresh. Scientists from the USDA found that when you cut cantaloupe under water, it short-circuits the signals plant cells send to each other when they detect an injury, like being sliced.

Buy them ripe.
The riper the cantaloupe, the more beta-carotene it contains. The challenge is that melons are often picked while they are still unripe so that they can make it through the shipping process undamaged. To check for ripeness, tap the melon and listen for a hollow sound. Then lift the fruit to make sure that it’s heavy for its size. Finally, smell the fruit to make sure that it exudes a sweet, musky odor. (The smell shouldn’t be too strong; an excessively strong smell indicates an overripe fruit.) If there is no smell, put it down and try another one.

There should be no stem.
Mature cantaloupes will only have a smooth, symmetrical basin where the stem once was and flesh that yields slightly to pressure.

Leave a firm cantaloupe at room temperature for several days to allow it to become softer and juicier. Once’s it’s ripe, put it in the fridge.

Eat it straight away.
When exposed to air, vitamin C degrades quickly. So it’s important to eat cantaloupe fairly soon after cutting, says Dr. Erdman. This is particular necessary when the fruit is cut into small pieces, which significantly increases the amount of air to which it’s exposed. Research found that cantaloupe cubes lost 25% of their vitamin C content and 10-15% of their carotenoids after being exposed to air for 6 days.


Discovering 600 Carotenoids in Apricots.

This tasty fruit originated from China more than 4,000 years ago and spread through the Middle East and Mediterranean in ancient times. Now it’s grown in Europe, Africa, Australia and America too.

This sweet and delicious treat is loaded with a variety of compounds that research has proved to fight infections, blindness and heart disease. Most of the health benefits of apricots are due to their
exceptionally diverse carotenoid content. Carotenoids are the pigments that color many of our favorite fruits and vegetables red, orange and yellow. They give a wide range of health protecting benefits in humans. Researchers have identified more than 600 different carotenoids, under which beta-carotene as one of the most powerful.

Support for the Heart
The unique mixture of healing compounds in apricots makes this fruit a powerful way to protect against heart disease.Apricots contain another carotenoid called hycopene, together with beta-carotene, they are potent in fighting against oxidation of low-density lypoprotein (LDL) cholesterol.
This is important because experts consider oxidized LDL as being an important factor in atherosclerosis,
which stiffens and narrow arteries, like the ones taking care of your heart supply.

A Japanese study by which 3,000 men and women were followed for nearly 12 years found that those with high levels of carotenoids, such as beta-carotene and hycopene, were less susceptible to die of cardiovascular disease.

Another study by which 73,000 American women were followed for 12 years, found that those which diets containing the highest levels of beta- and alpha-carotene had significantly lower risk of coronary
artery disease.

Powerful cancer protection
Besides tomatoes, in particular processed tomato products, which provide nearly 85% of the lycopene in American diets, apricots are another source of this carotenoid. Lycopene is one of the most potent
antioxidants that experts know about. It could help prevent cancer by protecting the DNA of your cells
from free-radical attacks. The antioxidant properties are also responsible for preventing atherosclerosis
involved in cardiovascular disease.

Researchers looked at the role lycopene in tomatoes plays in the protection of prostate cancer.
A meta-analysis – which synthesizes research results from a number of studies – found that men who ate a lot of cooked tomato products had 19% less risk of prostate cancer than men who seldom ate any tomato products. So what, you may ask, have this to do with apricots?

Researchers explain that the protective effects from tomatoes may come from other compounds in them.
Nevertheless, if you like the taste of apricots, the knowledge that the lycopene inside of them might be
helpful for fighting cancer, makes them even sweeter.

Source of Vitamin A

Eating apricots also provide you with plenty of vitamin A. (The body convert the beta-carotene into
vitamin A ). This nutrient is good for the eyes, and as is generally known, the eyes need all the help
they can get. Light passing through the eyes triggers the release of tissue-damaging free radicals.
Uncontrolled, these destructive oxygen molecules attack and damage the lenses of the eyes, opening up the change of getting cataracts. Free radicals can also attack the blood vessels supplying the central portions of the retinas, called the maculas. If the blood supply gets cut off, the result can be macular degeneration, which is the main cause of vision loss in older adults.

Vitamin A has proved to be a powerful protection against the damaging effects of free-radicals.
A study with more than 50,000 nurses proved that women who consumed the most vitamin A in their diet, reduced their risk of getting cataracts by more than one-third.
Three apricots provide 2,769 IU of vitamin A, which is 55% of the daily value for this vitamin.

High fiber content
When eating apricots with the skin, you can be assured to get a substantial amount of fiber.
High-fiber foods can help you lose weight, control high blood sugar, and lower cholesterol levels.
They are also essential for keeping your digestion healthy.

Three apricots contain 3 grams of fiber, or 12% of the Daily Value. Also, it’s at a minimal calorie cost of just 51 for all three.

To get the most out of apricots, eat them when they are still slightly firm. Apricots contain the most
nutrients when they are at their ripest. Once they get soft, these compounds quickly start to break down.

Watch the color.
Unlike most fruits, apricots can be yellow or orange and still be ripe.Both colors are acceptable when you’re trying to get the most healing benefits.

Store them carefully.

It’s important to keep apricots cool, to prevent them from getting overripe. Unless you’re going to eat them within a day or two, it’s best to store them in the fruit bin in the refrigerator, where you can keep them for about a week. It’s a good idea to store them in a plastic bag to avoid them picking up other smells from food or from the refrigerator itself.

According to Adel Kader, PhD, Professor of post-harvest physiology in the department of plant science at the University of California, you can also reap the benefits from apricots when they are dried or canned. According to the USDA, five fresh apricots contain 3,370 IU of vitamin A, and 1,915 micro grams of beta-carotene. A half cup of canned apricots contains 2,063 IU vitamin A, and 1,232 micro grams of beta-carotene.
And 10 dried apricots halves contain 1,261 IU of vitamin A and 757 micro grams of beta-carotene.

The Healing Power of Vegetarian Diets

In the 1960’s chefs started to experiment with cooking without meat.
But the meals were often tasteless. But now-a-days after experiencing
for more than a quarter of a century, cooks are combining fruits, vegetables
grains, and legumes in exciting new ways. The tastes are so good that even
large restaurants are now offering meatless meals.

As a result, more than 30 million Americans, including one in three teens,
have tried vegetarian meals, according to the American Dietetic Association.
They like the health benefits and how good the food tastes.
Vegetarian diets have changed, but one thing stayed the same: a plant based diet ,
which is low in saturated fat, high in fiber,vitamins, antioxidants, and a powerful
array of protective chemicals. This is the ultimate prescription for a longer and
healthier life, according to Virginia Messina, MPH, R.D. a dietitian in Port Townsend,
Washington, and coauthor of The Vegetarian Way.

Research results have showed that vegetarians have lower rates of cancer, heart
disease, high blood pressure, type two diabetes and obesity than people who eat meat.
According to British researchers, vegetarians have a 20% lower risk of fatal heart
disease and a 40% lower risk of cancer.

Other studies found more positive facts. Fifty years ago a large study of 27,530
Seventh-Day Adventists, whose religion advocates a vegetarian diet, provided the
first scientific link between vegetarian diets and better health.
Researchers were amazed to discover that among the vegetarian Adventists,
death rate from cancer were 50 to 70% lower than among other Americans.
Since then, study after study has confirmed the benefits of vegetarian eating.

In China, where people eat little or no meat, diseases such as heart disease,
breast cancer and diabetes, are far less common than in the United States.

Naturally lean

Something that makes vegetarian meals so healthy is that they don’t have all the
saturated fat and cholesterol that comes from meat. In fact, while most Americans
get about 36% of their total calories from fat, vegetarians get less, usually
between 30% and 34%. And most of the fat they get is the healthier polyunsaturated
and monounsaturated type – and not the dangerous saturated fat that comes from
animal foods.

In one study, researchers put 500 people on a vegetarian diet. After twelve days,
cholesterol levels had dropped an average of 11%.

Besides the fact that vegetarian meals don’t contain saturated fat that makes
vegetarian meals so healthy, they also contain the “good” fats.
According to studies, both polyunsaturated and monounsaturated fats, which are
found in olive oil, canola oil, nuts, seeds, and many other plant foods, can lower
the level of cholesterol when they’re used to replace saturated fat in the diet.
And the omega-3 fatty acids found in some plant foods, such as walnuts and
flaxeed, can further protect against heart disease by helping to keep artery walls
flexible and supporting the electrical “system” within the heart that regulates
a healthy heartbeat.

The Power of Plants
Doctors in the US have been pleading with Americans for years to eat more fruits,
vegetables, whole grains, and legumes, the same foods that vegetarians eat in
abundance. Most plant foods are loaded with antioxidants, like beta-carotene and
vitamin C and E. They are essential to protect you against diseases.
Also, plant foods contain an abundance of phytonutrients, which are natural plant
compounds that have been shown to lower the risk of cataracts, heart disease,
and many other serious problems.

In another study researchers found that people who got the most carotenoids,
the plant pigment that are found in dark green and deep orange, yellow, and red
fruits and vegetables, had half the risk of developing macular degeneration
(the leading cause of irreversible vision loss in older adults) as people getting less.

Vegetarian diets cut the risk of breast, colon, ovarian, and prostate cancer in a
number of studies. The magic ingredients include a number of cancer-fighting
phytochemicals. The naturally lower levels of saturated fat in most vegetarian diets
(except those that rely heavily on cheese) avoid a problem which is connected
with meat-rich diets: High-saturated fat diets seem to promote the production of
a form of estrogen called estradiol, which is linked to breast cancer.
In a study it showed that women who ate the most animal fats had a one-third
higher risk of breast cancer than those who ate the least.

Another study found that vegetarians have higher levels of “natural killer cells” –
special white blood cells that attack cancer cells – in their bloodstreams.

But even if you took all the nutrients out of plant foods, the vegetarian diet
would still have an edge, because of all the dietary fiber it contains.
The average American gets only 12 to 15 grams of fiber per day,
while vegetarians are getting as much as three times that amount.

It is almost impossible to exaggerate the importance of getting enough dietary
fiber. because it isn’t absorbed by the body, fiber passes through the
digestive tract, adding bulk to stools and helping them to move more quickly.
This does more than preventing constipation. The more quickly stools
and any harmful substances they contain move through the colon,
the less likely they are to do cellular damage that could lead to cancer.

Also, one type of fiber called soluble fiber, forms a gel in the intestine that
helps to prevent fat and cholesterol from passing through the intestinal wall
and into the bloodstream. In a study of more than 43,000 men, for example,
researchers found that those who added just 10 grams of fiber a day to their
diets – about 25% of the amount vegetarians get each day – decreased their
risk of heart disease by almost 30%.

Vegetarian diets also guard against other health issues, like kidney stones,
gallstones, and asthma. Because high-protein diets with much meat prompt
your body to excrete more calcium, oxalate, and uric acid – which are the
main building blocks of kidney stones. Diets with a lot of meat increase
the change of getting gallstones in women and could threaten bone density
by prompting the excretion of calcium.

In a Swedish study of 24 women and men, vegetable-based meals cut
the frequency and severity of asthma attacks.

Balance is the Key
A vegetarian diet can provide all the nutrients your body needs, including protein.
This is even true for strict vegetarians, who may avoid eggs, milk and other
animal foods all together. The proteins in meat are complete, that means they
contain all the amino acids your body needs.
The proteins in legumes and grains, however, may be low in one or more of the
amino acids, but because legumes and grains contain some amino acids, eating
a variety of these foods throughout the day will provide the proper balance.

However, vegetarians have the risk of vitamin B12 deficiency, which the body
needs to make red blood cells. It’s only found in animal foods.
People who don’t get enough vitamin B12 feel weak and tired.
You can get plenty of vitamin B12 by eating foods which are fortified with this
nutrient, such as fortified cereals, or/and you can take vitamin B12 supplements.

Why don’t you try Vegan Cooking? It’s one of the best things you can do for your health!
Try it here!

Antioxidants in Green Leafy Vegetables

Antioxidants you find in the red of tomatoes and the yellow plant pigments in carrots  are called carotenoids. You also find them in green leafy vegetables They belong to the family of phytonutrients. See also my article: Phytonutrients, compounds from the garden.
These carotenoids are powerful antioxidants to fight against heart disease and certain forms of cancer.

Research has shown promising results from a number of carotenoids, particularly lycopene
(also found in tomatoes), lutein (found in vegetables such as spinach and kale), and
zeaxanthin ( found in dark green leafy vegetables). All three play a powerful role as antioxidants  in cancer prevention.

Researchers in the Tufts University Carotenoids Health Laboratory say: “Skipping fruits &
vegetables is part of the classic “profile” of people who develop cancers of the head and
neck, but that increasing your intake of these antioxidants rich products may cut your risk for recurrence of these cancers.

In one study, researchers found that people in northern Italy who ate seven or more
servings  of raw tomatoes every week  had a 60% lower change of developing colon, rectal,
and stomach cancer than those who only ate two servings or less.

German researchers have found that cooked tomato products containing some oil –
such as spaghetti sauce – boost lycopene absorption dramatically. They believe that
heating  and crushing releases more lycopene, and that the body  needs substances in
oil to  help better absorption.

Harvard researchers, looking at green leafy vegetables, especially spinach, had quite
an eye-opener. They found that people eating the most lutein and zeaxanthin – which
are two carotenoids , powerful antioxidants found in these vegetables – had a 43% lower risk of macular degeneration  than those eating the least.
Macular degeneration is the leading cause of irreversible vision loss in people  over 50.
Lutein and zeaxanthin concentrate in your retinas and protect them by absorbing
harmful blue-wavelength light found in sunshine.

Other members of the Phytonutrients are: flavonoids, indoles,  lignans, monoterpenes, saponins, organosulfur – and phenolic compounds, which are all powerful antioxidants,
I will discuss in future articles.  If you like to know more about plant-based nutrition,
I refer to : Nutrition studies.org