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Tuesday, 15 April 2014
Is Coconut Water Good For You?
Source: www.bodyandsoul.com.au/nutrition
Madonna, Demi and Lara Bingle all swig it, but opinion is divided as to whether coconut water is the wonder health drink some claim it to be.
Advocates say coconut water - the clear liquid inside a young coconut - is a nutritional goldmine. Already popular in Brazil, where sales top $300 million a year, coconut water is one of the fastest-growing new food categories in the UK and sales doubled in the US last year, thanks to investment by Coca-Cola, PepsiCo and Madonna, who poured $1.5 million into the brand Vita Coco and convinced Matthew McConaughey and Demi Moore to do the same.
Not to be confused with coconut milk, the fattier, pulped coconut meat, pure coconut water has been available fresh from health food outlets and in pre-packaged form in Asian supermarkets for years, and has just made its Australian debut in general supermarkets.
The Jamaicans use it as a heart tonic and the United Nations' Food and Agriculture Organisation says it's full of natural electrolytes.
But Tania Ferraretto, an accredited practising dietitian with Nutrition Professionals Australia, says, "At this point I wouldn't recommend coconut water to my clients." Aloysa Hourigan, senior nutritionist with Nutrition Australia, agrees. "I think the claims for coconut water are probably overrated. It's unlikely to be harmful and it has got some mineral component, but it doesn't have a high nutritional content."
Health claims
It's a low-fat health drink. Deemed a healthy alternative to sugar- and kilojoule-packed soft drinks and juices, pure coconut water is a natural beverage with no artificial additives or sweeteners. It's cholesterol free, 99 per cent fat free, low in carbohydrates and naturally occurring sugars and has less than 100 kilojoules per 100ml (most flavoured varieties use 100 per cent fruit extracts).
It also boasts zinc, selenium, iodine, sulfur, manganese, boron, molybdenum, ascorbic acid and B-group vitamins. But Hourigan says the latter two are not at a substantial level and Ferraretto warns that the bottled source may not be as good as the real deal. "What's the shelf life for all these components and are they still active when they've been on the shelf for a while?" she asks. She says you also need to remember that coconut water is not kilojoule free.
It's better than a sports drink
Dubbed "nature's Gatorade", coconut water is a natural isotonic drink that provides many of the same benefits as formulated sports drinks, including the electrolytes calcium, magnesium, phosphorus, sodium and potassium, but in their natural form.
"While it's a marketing advantage to say it's natural, in the real world your body doesn't distinguish between the electrolytes coming from coconut water or from a sports drink," says Ferraretto. And while a small Malaysian study found it caused less nausea, fullness and stomach upset than sports drinks, and could be used for whole-body rehydration after exercise, she would not yet recommend it for athletes.
"Although it does provide electrolytes and a little bit of carbohydrate, a sports drink is specifically formulated for athletes and the electrolytes and carbohydrates are at the right level." She says the rest of us get all the hydration and electrolytes we need from a healthy diet.
It slows down ageing
Fans say coconut water can promote smoother, more youthful-looking skin. They claim it's a natural source of cytokinins, a group of plant growth hormones that help regulate cell growth, development and ageing. Rich in potassium, antioxidants and lauric acid, cytokinins are said to balance pH levels, strengthen and hydrate connective tissues and even reduce the risk of age-related diseases. Dab it onto skin and you may also reduce acne, cellulite, eczema, stretch marks, wrinkles, age spots and sagging skin. But Hourigan says no scientific studies back any of this up.
It's almost as good as a blood transfusion
According to the UN, coconut water's chemical profile is so similar to blood plasma it has been used intravenously to save lives in developing countries and during World War II. In the Pacific, it was siphoned directly from the nut to provide emergency transfusions for wounded soldiers. It is also used as a home remedy for dehydration-related ailments such as cholera and gastroenteritis, although a West Indian study warned against using it in severe cases. "When medical saline isn't available it can replace water and salt," Hourigan agrees. "But it doesn't contribute enough glucose."
Regulates blood pressure, blood sugar and cholesterol
Research shows that coconut water can improve blood circulation, lower elevated blood pressure and reduce the risk of heart attacks and strokes, says Dr Bruce Fife, director of the Coconut Research Center and author of Coconut Water For Health And Healing (Perfect Paperback). Advocates also claim it helps increase HDL (good) cholesterol, reduces plaque formation, moderates sugar absorption and improves insulin sensitivity. "People at risk of high blood pressure and stroke need more potassium and less sodium, but I'd like to see more studies on [coconut water and] cholesterol and diabetes," Ferraretto says.
Good for digestive and urinary health
Coconut water claims to be a cure-all for a range of digestive and urinary ailments and has been used in the tropics to treat stomach flu, dysentery, indigestion, constipation, intestinal worms, bladder infections and malfunctioning kidneys. It's a natural diuretic and is said to prevent urinary tract infections (UTIs) and kidney stones. Research from the Philippines found drinking coconut water up to three times a week may reduce stone size and the need for surgery.
Ferraretto argues that water is better for hydration and urine flow and says if you're worried about UTIs, try cranberry juice. "We know there's some evidence there," she says. Coconut water is considered safe for children as well as pregnant and breastfeeding women and there are no known side effects, however there are some things to watch out for:
- The fresher the coconut water, the better. Once exposed to air and warm temperatures, it rapidly ferments and loses its nutritional value.
- If you have nut allergies, check with your GP.
- Avoid coconut oil if you have heart disease, kidney disease or are on a low-potassium diet. Regulate your potassium levels if you consume coconut water and potassium supplements, as too much potassium can impact on the heart.
- It may have a laxative effect.
Saturday, 12 April 2014
10 facts about coconut oil
Source: www.bodyandsoul.com.au
This tropical trooper comes with a host of health benefits. Here's 10
reasons to pick up some coconut oil today.
From beating sugar cravings to aiding
weight loss, there are more benefits of coconut oil than most of us may
realise.
1
All fats are not created equal
Coconut oil contains short term
medium-chain saturated fatty acids (MCFAs), which is a "healthy" form
saturated fat compared to trans fat. Trans fatty acid consumption is linked
with heart problems, depression and increased cholesterol levels.
What does consuming MCFA fats in coconut oil mean for your body? Our body
metabolises these fats in the liver, immediately converting this into energy
(fuel for the brain and muscle function) rather than it being stored as fat.
2
Controls weight
One 2009 study looked at the weight loss
link between women's consumption of coconut oil and found that it reduces
abdominal obesity. Researchers discovered coconut oil is easy to digest and
also protects the body from insulin resistance. To try coconut oil for weight
loss start by adding one teaspoon to your diet and gradually work your way up
to four teaspoons per day.
3 Eases digestion
If you suffer from poor digestion or
tummy bloating try adding coconut oil to your diet. Coconut oil has been found
to benefit digestive disorders including irritable bowel syndrome and microbial
related tummy bugs. Fatty acids in coconut oil contain anti microbial
properties, which have a soothing affect on bacteria, candida, or parasites
that cause poor digestion.
A recent study by the Garvan Institute
of Medical Research found that coconut oil protects against insulin resistance,
reducing the risk of type 2 diabetes. MCFA fats are small enough to be
absorbed into the cells where they're quickly converted to energy. It is this
process that not only reduces the amount of fat we pack into storage, but
improves insulin sensitivity.
5 Supports immunity
Coconut oil is made up of healthy fats
lauric acid, caprylic acid and capric acid which contain antifungal,
antibacterial, antiviral prosperities to boost the immune system. Lauric acid
contains the highest concentration of MCFA fatty acids, approximately 75 per
cent. The body turn this fat into monolaurin which is claimed to help heal
viruses such as herpes, influenza, cytomegalovirus, helicobacter pylori and
candida.
6
Boost metabolism
A study reported in the Journal of
Nutrition found that coconut oil boosts metabolism. Researchers found that
participants who consumed two tablespoons of coconut oil per day burned more
kilojoules than those who consumed less. A speedy metabolism helps boost the
body's immune system and keep weight off.
7
Slows fine lines
Coconut is not just for your cooking –
it's a wonderfully hydrating treat for skin too. It keeps the skin's connective
tissues strong, which prevents sagging and wrinkles. Apply coconut oil directly
to your skin to soften the appearance of fine lines or use it daily on your
face and body for a healthy glow. Be sure you use virgin coconut oil with no
additives.
8
Cooks in high temperatures
Because coconut oil is a medium-chain
saturated fatty acid, it gives it a higher smoking temperature than most
polyunsaturated or monounsaturated oils. If you're preparing recipes that
require high temperatures you should consider coconut oil for this type of
cooking. Unlike olive oil which will oxidise at high temperatures, creating
free radicals.
Instead of reaching for the lollie jar
for an afternoon sweet hit, try eating a teaspoon of virgin coconut oil to beat
sugar cravings. This is because good quality fat is more satiating than carbs,
so if you cut down on sugar you will feel less 'ravenous'. Most of us do not
realize but constant hunger is a major clue that your body is not being fed
correctly. With the proper amounts of fats and protein, you can fuel your
energy reserves properly, and come off the sugar roller coaster that many of us
are on.
10
Coconut oil is simple to cook with
Try this recipe for a nutritious high
protein, gluten and dairy free coconut treat.
1 teaspoon of Niugini Organics Coconut
Oil (available from health food stores)
1 cup of almonds or walnuts
1 cup of organic dates
3-4 tablespoons of raw cocoa powder
Shredded coconut (check it contains no
preservatives)
Place all ingredients in a food processor.
Roll into small bite size balls and roll into shredded coconut. Place in the
refrigerator for 15 minutes to set.
Michele Chevalley Hedge is an accredited
nutritionist, author and presenter. Visit her website www.ahealthyview.com.au
Wednesday, 9 April 2014
How Coconut Oil Can Help You Lose Weight
Source: http://authoritynutrition.com/coconut-oil-and-weight-loss/
A calorie is not a
calorie.
Different foods and macronutrients go
through different metabolic pathways.
The different types of foods we eat can
have a huge effect on our hormones and metabolic health.
Some metabolic pathways are more efficient
than others and some foods require more energy to digest and metabolize.
One important property of coconut oil is that
it is “thermogenic” – eating it tends to increase energy expenditure (fat
burning) compared to the same amount of calories from other fats .
In one study, 15-30 grams (1 to 2 tablespoons)
of medium chain fats per day increased energy expenditure by 5%, totalling about 120
calories per day.
Several other studies confirm these
findings. When humans replace the fats they are eating with MCT fats, they burn
more calories.
Therefore, a calorie from coconut oil is
NOT the same as a calorie from olive oil or butter (although
these fats are perfectly healthy too).
Bottom Line: Many studies show that
medium chain triglycerides can boost metabolism, in one study increasing energy
expenditure by 120 calories per day.
Coconut Oil Can Reduce Appetite, Making You
Eat Less Without Trying
“Weight loss is all about calories in,
calories out.”
Even though I think this is a drastic
oversimplification, it is mostly true.
If your body expends more energy (calories)
than it takes in, then you will lose fat.
But even though it is true that we need to
be in a calorie deficit to lose weight, it doesn’t mean that calories
are something that we need to count or be consciously aware of.
Humans are very capable of remaining lean
and healthy in their natural environment. The obesity epidemic didn’t start
until 1980 and we didn’t even know what a calorie was back in the day.
Anything that reduces our appetite can make
us take in fewer calories without having to think about it. It appears that
coconut oil has this effect.
Many studies on medium chain fatty acids
show that, compared to the same amount of calories from other fats, they
increase feelings of fullness and lead to an automatic
reduction in calorie intake.
This may be related to the way these fats
are metabolized. It is well known that ketone bodies (which the liver produces
when you eat coconut oil) can have a powerful appetite reducing effect.
Whatever the mechanism is, it works. In one
study of 6 healthy men, eating a high amount of MCTs caused them to
automatically eat 256 fewer calories per day.
Coconut Oil Can Help You Lose Fat,
Especially The “Dangerous” Abdominal Fat
If coconut oil can boost metabolism and
reduce appetite, then it should help you lose fat over the long term.
In fact, there are several studies that
support this.
In one study, 40 women were given either 30
grams (2 tablespoons) of either coconut oil or soybean oil for 28 days.
They were instructed to eat fewer calories
and walk every day. These were the results:
- Both groups lost weight (about 2 pounds).
- Only the coconut oil group had decreased waist circumference (belly fat) while the soybean oil actually had a mild increase in belly fat.
- The coconut oil group had increased HDL (good) cholesterol levels, while the soybean oil had reduced HDL and increased LDL.
In this study, coconut oil did not cause
overall weight loss compared to soybean oil, but it did lead to a significant
reduction in belly fat.
In another study in obese men, 30 grams of
coconut oil for 4 weeks reduced waist circumference by 2.86 cm, or 1.1 inches.
There are also other studies showing that
medium chain fats lead to weight loss, reduced waist circumference and various
improvements in metabolic health.
The weight loss effects of coconut oil
appear to be fairly mild, except for the abdominal fat.
Abdominal fat, also called visceral fat or
belly fat, is the fat that tends to lodge around your organs and cause
inflammation, diabetes and heart disease.
Any reduction in abdominal fat is likely to
have very positive effects on your metabolic health, longevity and drastically
reduce your risk of chronic disease.
These results are far from being dramatic,
but consider that all these people are doing is adding coconut oil to
their diet.
Combined with other proven weight loss
strategies (like cutting carbs and
increasing protein),
all of this can add up to a significant amount.
Therefore, coconut oil can support a
healthy, real-food based weight loss diet, but don’t expect it to work any
miracles on its own.
If you’re interested in even more research
on coconut oil, then you can find a very impressive collection of studies here.
Bottom Line: Eating coconut is
particularly effective at reducing the harmful belly fat in the abdominal
cavity, which is strongly associated with disease.
What About The Calories?
It’s important to keep in mind that coconut
oil is fat.
Fat has 9 calories per gram… and coconut
oil is no exception.
Therefore, if you are eating a fixed amount
of calories and then add coconut oil on top of that, then it’s likely to
make you gain weight, not lose.
However, most people aren’t counting
calories and eating a fixed amount per day.
In these cases, adding coconut oil to your
diet will reduce your appetite and probably make you eat less of other foods instead.
So this really is not about adding fat
calories to your diet, it is about replacing some of your other cooking
fats with coconut oil.
It’s also important not to go overboard and
think you need to add tons of coconut oil to your diet to reap the benefits.
The studies above used about 30 grams per day, which equals 2 tablespoons.
Even if coconut oil is good for
cooking and has some powerful health benefits, your diet should
still consist primarily of whole, nutritious foods like plants and animals.
You can read more about the other amazing
health benefits of coconut oil here.
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