I expect that most people eat berries because
they like the flavor of the berries, giving little or no thought to their
nutritional value. As we will see shortly, not all berries are created equal.
Some, like the strawberry, have very little dietary value while others, like
the Goji berry, are packed vitamins, minerals, antioxidants and almost
everything else that is good for you. In the second part of this book we will
explore the nutritional benefits of leafy green vegetables, which, while not as
tasty as berries, are also packed with nutritional value. Finally, in part
three, we will explore the nutritional benefits of the fruits we eat. I know
you will benefit from this ride through the world of foods we consume on a
daily basis. Let’s begin our journey with the most nutritious berry of them
all, the Goji berry.
1. The Magical Goji Berry
Of all the super foods, the Goji berry, also
known as the wolfberry, has the
longest and most renowned history. The health benefits of the Goji berry were
first recognized by a doctor who was studying an ancient society in the remote mountains
of the Himalayas. He found that many members of this social order lived for a
hundred years or more without the usual signs of aging such as graying hair,
loss of teeth and diminished eye sight.
Eventually, he recognized that most of these
individuals lived near water wells which were over grown with Goji berry
plants. He concluded
that, as the berries ripened, they fell into the water where their ingredients
dissolved in the liquid and subsequently consumed by the villagers who relied
on the well for their daily water supply.
History also suggests that Professor Li Qing
Yuen, the oldest person to have lived in recorded history, attributed his
longevity to having consumed Goji berries every day of his life. Professor Yuen
was born in 1678 and died in 1930, having lived 252 years. Yuen didn't live as
long as Methuselah, but much longer than any other modern man. Li Qing Yuen
twice received longevity awards from the Chinese government.
Whether this historical data is fact or
fiction is open to debate; however, it is clear that the people residing in
many of these ancient civilizations lived longer and healthier lives than those
of us who live in the modern world. As we will see, modern research suggests
that the healthful nutrients in the Goji berry play a role in their good health
of people who lived in the remote areas of Tibet and China.
Today, in our modern world, many people who
eat Goji berries daily have noticed improved eye sight, restoration of hair
color, mood enhancement, improved energy levels, better sleeping habits,
stronger immune function and more zest for life. Most importantly, Goji berries
have a ROAC (Radical Oxygen Absorbance Capacity) of 25,300, one of the highest
of any fruit, berry or vegetable. Here are some of the scientific facts that
support the belief that Goji berries are the number one super food.
Protein: Goji berries
are one of a handful of plant based foods that provide all of the building
blocks for the essential proteins that the body cannot produce for itself.
Meats contain these essential amino acids but the vast majority of vegetables
do not.
Eye health: Goji berries are rich in zeaxanthin, the
pigment that gives the berry its reddish color. People who consume Goji berries
have a lower incidence of age related macular degeneration and other eye problems.
Interestingly, the leaves of Goji berries, from which Goji berry green leaf tea
is made, have all of the healthful ingredients present in the berry itself,
except for zeaxanthin. Thus, the leaves
of the Goji berry are nearly as healthful as the berry itself.
Longevity
and anti-aging properties: The Chinese have long associated the Goji berry with longevity.
Modern research reveals that certain oils in the Goji berry, called
sesquiterpinoids, increase the production of human growth hormone, the only
compound that has been proven to produce an anti-aging effect in humans. As we
age our production of growth hormone decreases, by consuming Goji berries one
can compensate, at least in part, for the age induced decrease in this
important anti-aging hormone.
Heart
disease:
The consumption of goji berries increases the level of the superoxide dismutase
in the body. This enzyme prevents the oxidation of cholesterol. In its oxidized
form cholesterol contributes to heart disease; thus, by eating Goji berries, or
by drinking Goji berry green leaf tea, we can lower our risk of heart disease.
Immune system: Goji berries contain three compounds that boost the immune
system. The polysaccharides in the berries improve the overall function of the
immune system while beta carotene stimulates the thymus gland. Germanium, and
the other antioxidants, neutralize the free radicals in the body which cause
mutations in our DNA and decrease the chance of developing cancer. DNA
mutations also cause the cell damage associated with premature aging.
The antioxidants in Goji berries include vitamin
c, zinc and copper, which protect DNA from the harmful effects of
free-radicals. In fact, Goji berries contain more antioxidants than any other
fruit or vegetable. This is one of the primary reasons Goji berries are
classified as a Super Food.
Auto immune disorders: One in five of us suffer from an auto
immune disorder in which our immune system attacks our own healthy cells rather
than the bacteria and viruses that invade our bodies. The polysaccharides
contained in Goji berries provide specialized sugars that help our immune
system distinguish between normal and abnormal invading cells.
Finally,
goji berries are rich in minerals. Some, called trace elements (copper, zinc,
magnesium, phosphorous, germanium and selenium) are needed only in tiny
amounts; others like iron and calcium are needed in larger amounts. Goji berries
and their leaves supply all of the essential minerals necessary for good health.
Availability So why do you have to buy dried Goji berries, which are mostly
produced in China under very questionable agricultural conditions? The answer
is quite simple, fresh Goji berries are extremely perishable and begin to
deteriorate the minute they are removed from the vine. Basically, they turn to
mush a few hours after they are picked. I am presently experimenting with ways
to preserve Goji berries so that they can be marketed fresh.
Fortunately,
as mentioned above, except for zeaxanthin, the compound that gives the Goji
berry its reddish color and is important in the prevention and treatment of eye
disease, all of the beneficial compounds of the berry also are found in Goji
berry green leaf tea.
Possible harmful effects People taking blood thinners like warfarin
should not consume Goji berries, otherwise they are safe for anyone to eat.
This chart
summarizes some of the most significant nutritional data on Goji berries. These
figures are based on a 2000 calorie diet.
Nutrient
|
Serving
size 1 ounce
% daily
value
|
Serving
size 1/4 cup
% daily
value
|
Vit. A (antioxidant)
|
50%
|
180%
|
Vit. C
|
9%
|
30%
|
Calcium
|
3%
|
|
Iron
|
14%
|
15%
|
Riboflavin
|
21%
|
|
Selenium
|
25%
|
|
Copper
|
28%
|
|
Protein
|
6%
|
|
Fiber
|
19%
|
|
Possibly the
most significant information provided on this chart is the exceptionally high
content of vitamin A in Goji berries. Vitamin A is essential for good eye sight
and is one of the bodies most powerful antioxidants.
In the next chapter
I will discuss the nutritional value of blueberries. Goji berries and
blueberries both derive health benefits from their high levels of antioxidants
which protect the body from the free radicals that damage your cells and play a
major role in the development of heart disease, accelerate the signs of aging
and increase the chances of developing cancer. Goji berries contain ten times
more antioxidants than blueberries.
The propagation of Goji Berries. Goji berries
are relatively easy to grow in temperate climates such as we have in
California. The Goji berry can be grown from seeds or cuttings. Perhaps the
easiest way to grow a Goji berry plant is to transplant one of the suckers that
invariably come up around the mother plant.
Cultivating the Goji Berry plant. Goji berry
plants can be grown in almost any soil but do better in well-drained soil rich
in organic material. Goji berry plants should be grown on a trellis. I employ a
three wire trellis, the first wire being about 18 inches from the ground. The
second two 16 gage zinc coated wires are positioned 16 and 32 inches above the
initial wire. The plants are spaced about six feet apart in rows that are six
to eight feet apart.
As the
plants develop they are tied to the wires with garden twine. It is important to limit the
number of branches that are allowed to develop from each vine, two to four at
the most. The remaining shoots should be cut off at ground level. The tiny
purple flowers and subsequent berries develop from new shoots each year, not
old growth, so the plants should be pruned accordingly each fall. The berries
will be few in number and small the first year but you can expect a decent crop
the second year and each year thereafter. A Goji plant will thrive and produce
fruit for many years. Unfortunately, not all Goji berry plants are equally
productive. Therefore, the best way to propagate Goji berry plants is to take
cuttings from plants that are producing large amounts of fruit.
The biggest
problem you will encounter raising Goji berries is the damage to the crop
caused by birds. My entire berry patch is covered with plastic netting, top and sides,
to keep the birds from getting to the crop. If you are only growing a few
plants a half inch netting may be placed over each plant. You also can review
the pertinent data on the internet to learn how others have tried to keep the
birds from eating their ripe Goji berries.
Goji berry
plants are relatively resistant to disease except for powdery mildew which must
be controlled by frequent spraying with an appropriate fungicide like liquid
sulfur.