Kale nutrition facts
Kale or borecole is rich in numerous health benefiting polyphenolic flavonoid compounds such as lutein, zeaxanthin, and beta-carotene, and vitamins than found in any other green leafy vegetables. It is widely cultivated across Europe, Japan, and the United States for its “frilly“leaves.The plant belongs to the “cabbage” (brassica) family, has similar in growth and appearance to collard greens. Botanically, borecole belongs to Brassica oleracea (acephala group) and is closely related to broccoli, cauliflower, brussels sprouts etc.
Some of the important cultivars grown around the globe are Scottish curly leaf (Brassica napus (Pabularia Group)), Red Russian, Blue curled, Winterbor cultivars.
Tuscan kale, also known as cavalo nero, is a popular winter season greens in the Northern parts of Italy. It features distinctive very long, curly, blue-green leaves with embossed surface resembling dinosaur skin, giving its name as dinosaur kale.
Health benefits of Kale (borecole)
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Kale is very versatile and nutritious green
leafy vegetable. It is widely recognized as an incredibly nutritious
vegetable since ancient Greek and Roman times for its low
fat, no cholesterol but health benefiting anti-oxidant properties.
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Kale, like other members
of the brassica family, contains health-promoting phytochemicals, sulforaphane and indole-3-carbinol
that are appears to protect against prostate and colon cancers.
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Di-indolyl-methane
(DIM), a metabolite of indole-3-carbinol
has been found to be an
effective immune modulator, anti-bacterial and anti-viral agent
through its action of potentiating "Interferon-Gamma" receptors.
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Borecole is very rich source
of ß-carotene,
lutein
and zeaxanthin.
These flavonoids have strong anti-oxidant and anti-cancer activities.
Beta-carotene is converted to vitamin A in the body.
-
Zeaxanthin,
an
important dietary carotenoid, is selectively absorbed into the retinal
macula lutea in the eyes where it is thought to provide antioxidant and
protective light-filtering functions. Thus, it helps prevent retinal
detachment and offers protection against "age related macular
degeneration disease" (ARMD) in the elderly.
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It is very rich in
vitamin A,
100 g leaves provide 512%
of RDA. Vitamin A is required for maintaining
healthy mucus membranes and skin and is essential for vision.
Foods rich in this vitamin offer protection against lung and oral
cavity cancers.
-
It is one of the excellent
vegetable
sources for vitamin-K;
100 g provides about 700% of recommended intake. Vitamin K has
potential role bone health by promoting osteotrophic (bone formation
and strengthening)
activity. Adequate vitamin-K levels in the diet
helps limiting neuronal damage in the brain; thus, has established role
in the treatment of patients suffering from Alzheimer's
disease.
-
100 g of
fresh leaves contain 120
mg or 200% of daily-recommended levels of vitamin C.
Scottish curly leaf variety yet has more of this vitamin, 130 mg/100g.
Vitamin
C is a
powerful antioxidant, which helps body develop resistance against
infectious agents and scavenge harmful oxygen free radicals.
-
This leafy vegetable is
notably good in many B-complex group of vitamins such as niacin,
vit.B-6
(pyridoxine), thiamin, pantothenic acid, etc that are
essential
for substrate metabolism in the body.
-
It is also rich source of
minerals like copper, calcium, sodium, potassium, iron, manganese, and
phosphorus. Potassium
is an
important component of cell and body fluids that helps controlling
heart rate and blood pressure by countering effects of sodium.
Manganese is used by the body as a co-factor for the antioxidant
enzyme,
superoxide
dismutase.
Iron
is required for cellular oxidation and red blood cell formation.
Selection and storage
Kale is
available at its best
during winter months
from November until march. Exposure of crop to light frost in fact
enhances its eating quality. While harvesting, individual
lower leaves may be picked either progressively as the main stem
elongates or
the whole plant is cut at the stem and packed in bundles. In
the store, buy fresh green leaves featuring
crispy, crunchy, brilliant dark blue-green color.
Borecole, like
chard,
is
extremely perishable leafy vegetable, so should be
used
quickly once harvested. If at all to be stored in the
refrigerator, set temperature below 35 degree F and high humidity level
to maintain their vitality.
Preparation and serving methods
As in spinach, borecole
should be washed thoroughly in clean running
water and swished in saline water for about 10-15 minutes in order to
remove soil, dirt and any fungicide/insecticide residues.
Just before
cooking, remove tough stems, and separate wilted leaves
from healthy ones. The leaves are generally blanched before use in
cooking.
Here are some serving tips:-
Fresh young crispy borecole can be used raw in
salads.
-
Mature leaves and stalks are typically
cooked or sautéed.
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Tuscan kale leaves are popular winter staples
in all over Mediterranean, used in soups (ribollita toscana), stews,
salads, pizza, and pasta.
-
The leaves also used in the variety of
traditional kale recipes
with potatoes, green beans, poultry, and meat.
-
In Japan, fresh kale juice is quite popular.
Nutrients in
Kale
1.00 cup cooked (130.00 grams)Nutrient%Daily Value
vitamin K1327.6%
vitamin A354.1%
vitamin C88.8%
manganese27%
fiber10.4%
copper10%
tryptophan9.3%
calcium9.3%
vitamin B69%
potassium8.4%
iron6.5%
magnesium5.8%
vitamin E5.5%
omega-3 fats5.4%
vitamin B25.2%
protein4.9%
vitamin B14.6%
folate4.2%
phosphorus3.6%
vitamin B33.2%
Calories (36)2 %Recipes for fresh kale - click here
Safety profile
Because of its high vitamin K content, patients taking anti-coagulants such as warfarin are encouraged to avoid kale since it increases the vitamin K concentration in the blood, which is what the drugs are attempting to lower. This effectively raises the effective dose of the drug and causes toxicity.
Its leaves contain 0.2 g/100 g of oxalic acid, a value far less than some other comparable greens such as spinach (0.97 g/100) and purslane (1.31 g/100 g). It may be used, however with caution, even in individuals with known oxalate urinary tract stones are advised to avoid eating other greens and certain vegetables belonging to amaranthaceae and brassica family because of their high oxalic acid content. Adequate intake of water is therefore advised to maintain normal urine output.
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