PUMPKINS SEEDS - BENEFICIAL NUTRIENT
A pumpkin seed, also known
as a pepita is edible and rich in nutrients. The seeds
are typically flat and oval in shape, have a white outer husk. After
husk is removed, we will find light
green color seed. The seeds are nutrient- and calorie-rich, with especially high content of fat protein, dietary
fiber, and numerous nutrients.
Pumpkin seeds are a common
ingredient in Mexican
cuisine and are also roasted and
served as a snack. Marinated and roasted, they are an autumn seasonal
snack as well as a commercially produced and distributed packaged snack,
like sunflower
seeds, available year-round. Pepitas
are known by their Spanish name (usually shortened), and typically salted and
sometimes spiced after roasting.
The earliest known evidence of
the domestication of Cucurbita dates back 8,000–10,000 years
ago, predating the domestication of other crops such as maize and common beans in the region by about 4,000 years. Changes in fruit shape
and color indicate intentional breeding of C. pepo occurred by
no later than 8,000 years ago.[3][4] The process to develop the
agricultural knowledge of crop domestication took place over 5,000–6,500 years
in Mesoamerica. Squash was domesticated first, with maize second, followed by
beans, all becoming part of the Three Sisters
agricultural system.
As an ingredient in mole dishes, they are known in Spanish as pipián. A
Mexican snack using pepitas in an artisan fashion is referred to as pepitorÃa.
Lightly roasted, salted, unhulled pumpkin seeds are popular in Greece with the descriptive Italian name, passatempo ("pastime").
The pressed oil of the roasted
seeds of a Cucurbita pepo subsp. pepo var. 'styriaca' is also used
in Central and Eastern Europe as cuisine. An example of this is pumpkin seed oil. Pumpkin seeds can also be made into a nut butter.
Nutrition
Pumpkin
and squash seed kernels, roasted, with salt added |
|
Nutritional
value per 100 g (3.5 oz) |
|
2,401 kJ (574 kcal) |
|
14.71 g |
|
1.29 g |
|
6.5 g |
|
49.05 g |
|
8.544 g |
|
15.734 |
|
19.856 |
|
29.84 g |
|
Quantity%DV† |
|
6% 0.07 mg |
|
13% 0.15 mg |
|
30% 4.43 mg |
|
11% 0.57 mg |
|
8% 0.1 mg |
|
14% 57 μg |
|
8% 6.5 mg |
|
4% 0.56 mg |
|
4% 4.5 μg |
|
Quantity%DV† |
|
5% 52 mg |
|
62% 8.07 mg |
|
155% 550 mg |
|
214% 4.49 mg |
|
168% 1174 mg |
|
17% 788 mg |
|
17% 256 mg |
|
80% 7.64 mg |
|
Other constituents |
Quantity |
Water |
2.0 g |
Dried, roasted pumpkin seeds are
2% water, 49% fat, 15% carbohydrates, and 30% protein (table). In a 100 gram reference serving, the seeds
are calorie-dense (574 kcal), and a rich source (20% of the Daily Value, DV, or higher) of
protein, dietary fiber, niacin, iron, zinc, manganese, magnesium, and phosphorus (table). The seeds are a moderate source (10–19% DV)
of riboflavin, folate, pantothenic acid, sodium, and potassium (table). Major fatty acids in pumpkin seeds are linoleic acid and oleic acid, with palmitic acid and stearic acid in lesser amounts.
The total unsaturated fatty
acid concentration ranged from
9% to 21% of the pepita. The total fat
content ranged from 11% to 52%.
Based on the quantity of alpha-tocopherol extracted in the oil, the vitamin E content of twelve C. maxima cultivar
seeds ranged from 4 to 19 mg/100 g of pepita.
Traditional medicine
Pumpkin seeds were once used as
an anthelmintic in traditional medicine in China to expel tapeworms parasites, such as Taenia tapeworms. This led to the seeds being listed in
the United States
Pharmacopoeia as an
antiparasitic from 1863 until 1936
Pumpkin seeds can
be eaten raw but taste especially delicious roasted. To roast them, toss them
in olive oil or melted butter, plus salt, pepper, and any other seasonings you
desire. Spread them on a baking sheet and cook them in the
oven at 300°F (150°C) for 30–40 minutes, or until brown and crunchy.
Pumpkin seeds
may be small, but they’re packed full of valuable nutrients.
Eating only a
small amount of them can provide you with a substantial quantity of healthy
fats, magnesium and zinc.
Because of
this, pumpkin seeds have been associated with several health benefits.
These include
improved heart health, prostate health and protection against certain cancers.
What’s more,
these seeds can be easily incorporated into your diet.
Here are the
top 11 health benefits of pumpkin seeds that are supported by science.
Pumpkin seeds are also known as “pepita” — a
Mexican Spanish term.
Unlike the hard white seeds from a carving
pumpkin, most pumpkin seeds bought at the supermarket don’t have a shell.
These shell-free seeds are green, flat and
oval.
One ounce (28 grams) of shell-free pumpkin
seeds has roughly 151 calories, mainly from fat and protein.
In addition, a 1-ounce (28-gram) serving
contains (1):
- Fiber: 1.7 grams
- Carbs: 5 grams
- Protein: 7 grams
- Fat: 13 grams (6 of which are omega-6s)
- Vitamin K: 18% of the RDI
- Phosphorus: 33% of the RDI
- Manganese: 42% of the RDI
- Magnesium: 37% of the RDI
- Iron: 23% of the RDI
- Zinc: 14% of the RDI
- Copper: 19% of the RDI
They also contain a lot of antioxidants and a
decent amount of polyunsaturated fatty acids, potassium, vitamin B2
(riboflavin) and folate.
Pumpkin seeds
and seed oil also pack many other nutrients and plant compounds that have been
shown to provide health benefits
High
in Antioxidants
Pumpkin seeds
contain antioxidants like carotenoids and vitamin E
Antioxidants
can reduce inflammation and
protect your cells from harmful free radicals. That’s why consuming foods rich
in antioxidants can help protect against many diseases.
It’s thought
that the high levels of antioxidants in pumpkins seeds are partly responsible
for their positive effects on health.
In one study,
pumpkin seed oil reduced inflammation in rats with arthritis without side
effects, whereas animals given an anti-inflammatory drug experienced adverse
effects.
Linked to a
Reduced Risk of Certain Cancers
Diets rich in
pumpkin seeds have been associated with a reduced risk of stomach, breast,
lung, prostate and colon cancers.
A large
observational study found that eating them was associated with a reduced risk
of breast cancer in postmenopausal women.
Others studies
suggest that the lignans in pumpkin seeds may play a key role in preventing and
treating breast cancer.
Further
test-tube studies found that a supplement containing pumpkin seeds had the
potential to slow down the growth of prostate cancer cells
Improve Prostate and Bladder Health
Pumpkin seeds
may help relieve symptoms of benign prostatic hyperplasia (BPH), a condition in
which the prostate gland enlarges, causing problems with urination.
Several studies
in humans found that eating these seeds reduced symptoms associated with BPH.
In a one-year
study in over 1,400 men with BPH, pumpkin seed consumption reduced symptoms and
improved quality of life.
Further
research suggests that taking pumpkin seeds or their products as supplements
can help treat symptoms of an overactive bladder.
One study in 45
men and women with overactive bladders found that 10 grams of pumpkin seed
extract daily improved urinary function.
Very High in Magnesium
Pumpkin seeds
are one of the best natural sources of magnesium — a mineral that is often lacking in the
diets of many Western populations.
In the US,
around 79% of adults have a magnesium intake below the recommended daily amount.
Magnesium is
needed for more than 600 chemical
reactions in your body. For example, adequate levels of magnesium are important
for:
- Controlling blood pressure.
- Reducing heart disease risk.
- Forming and maintaining healthy bones.
- Regulating blood sugar levels.
Pumpkin seeds
are a good source of antioxidants, magnesium, zinc and fatty acids — all of
which may help keep your heart healthy
Animal studies
have also shown that pumpkin seed oil may reduce high blood pressure and
high cholesterol levels —
two important risk factors for heart disease
A 12-week study
in 35 postmenopausal women found that pumpkin seed oil supplements reduced
diastolic blood pressure (the bottom number of a reading) by 7% and increased
“good” HDL cholesterol levels by 16%.
Other studies
suggest that pumpkins’ ability to increase nitric oxide generation
in your body may be responsible for its positive effects on heart health
Nitric oxide
helps expand blood vessels, improving blood flow and reducing the risk of
plaque growth in your arteries.
Animal studies
have shown that pumpkin, pumpkin seeds, pumpkin seed powder and pumpkin juice
can reduce blood sugar.
This is
especially important for people with diabetes, who may struggle to control
their blood sugar levels.
Several studies
have found that supplementing with pumpkin juice or seed powder reduced blood
sugar levels in people with type 2 diabetes
The high
magnesium content of pumpkin seeds may be responsible for its positive effect
on diabetes.
An
observational study in over 127,000 people found that diets rich in magnesium
were associated with a 33% lower risk of type 2 diabetes in men and a 34% lower
risk in women.
More research
is needed to confirm these beneficial effects of pumpkin seeds on blood sugar
levels.
Pumpkin seeds
are a great source of dietary fiber — shelled
seeds provide 1.1 grams of fiber in a single 1-oz (28-gram) serving.
A diet high in
fiber can promote good digestive health.
In addition,
high-fiber diets have been associated with a reduced risk of heart disease,
type 2 diabetes and obesity
Low zinc levels
are associated with reduced sperm quality and an increased risk of infertility
in men.
Since pumpkin
seeds are a rich source of zinc, they may improve sperm quality.
Evidence from
one study in mice suggests they may also protect human sperm from damage caused
by chemotherapy and autoimmune diseases
Pumpkin seeds
are also high in antioxidants and other nutrients that can contribute to
healthy testosterone levels and
improve overall health.
Together, all
these factors may benefit fertility levels and
reproductive function, especially in men.
If you have
trouble sleeping, you may want to eat some pumpkin seeds before bed. They’re a
natural source of tryptophan, an amino acid that can help promote sleep.
Consuming
around 1 gram of tryptophan daily is thought to improve sleep .
However, you
would need to eat around 7 ounces (200 grams) of pumpkin seeds to achieve the
needed amount of tryptophan.
The zinc in
these seeds can also help convert tryptophan to serotonin, which is then
changed into melatonin, the hormone that regulates your sleep cycle.
In addition,
pumpkin seeds are an excellent source of magnesium. Adequate magnesium levels have also
been associated with better sleep
Some small
studies have found that taking a magnesium supplement improved sleep quality
and total sleep time in people with low magnesium levels
If you want to
experience the benefits of pumpkin seeds, they’re easy to incorporate into your
diet.
In many
countries, they’re a popular snack that can be eaten either raw or roasted,
salted or unsalted.
Besides eating
them on their own, you can add them to smoothies, Greek yogurt and fruit.
You could
incorporate them into meals by sprinkling them into salads, soups or cereals.
Some people use pumpkin seeds in baking, as an ingredient for sweet or savory
bread and cakes.
However, as
with many seeds and nuts, they contain phytic acid,
which can reduce the bioavailability of some nutrients you eat.
If you eat seeds and nuts regularly, you may
want to soak or sprout them to
reduce their phytic acid content. Roasting them may help as well.
enlargement and an overactive bladder
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