My Dear Sexy Readers,
Thank you all for the amazing feedback I got from you on the different social networks about my latest article "
What's a gluten-free diet?".
Right after the holiday season, we all love a
good detox program to purify our body and soul from all our
Christmas sins. Some of us take the plunge and go for the
latest fad diet. Whereas others feel they got the whole Healthy Diet with particular attention to superfoods.
But what are those Superfoods everyone seem to talk about these days? And most importantly is there any truth, medical or theoretical evidence that these foods are Super?
What are Superfoods?
Superfoods are nutrient-rich foods that are considered to be especially beneficial for our health and well-being.
|
Superfood Berries |
However the name 'Superfood' has been disputed by many saying that it is a non-medical term used in marketing with little scientific evidence for it. The term itself has been prohibited in the European Union since 2007 unless it is
accompanied by a medical notice approved by an medically and
scientifically accredited name or organisation.
What are these superfoods?
Berries,
nuts and
seeds in general, dark green vegetables (such as
spinach, kale, collard greens, Swiss chard, Brussels sprouts, and broccoli),
citrus fruits, f
atty fish such as salmon, mackerel, and sardines, vegetables with bright, dark, or intense colors (such as
beets and their greens, and
sweet potatoes), many legumes (
peanuts, lentils, beans, raw cocoa), and
whole grains as a group.
You might say, 'Well, if these are good foods to begin with, foods that could be part of a healthy diet, what's wrong with naming them Superfoods?'
Tweet This - If
these are good foods, part of a healthy diet, what's wrong with naming
them Superfoods?
And in essence, there's nothing wrong with it if these are actually eaten as part of a healthy diet and not popped in your mouth in a pill form!!!
|
Green tea leaves from Chengdu |
For example,
green tea is well known for its superfood quality as it is a superoxidant and contains B vitamins, folate (naturally occurring folic acid), manganese, potassium, magnesium, and
caffeine. Many weight loss supplements include green tea extracts but there is currently insufficient scientific evidence that consumption of green tea or its specific extract EGCG has any health benefit.
The FDA itself sent a warning letter in 2013 about false advertising and health claims concerning the effects of green tea consumption.
Why are they called Superfoods?
Many Superfoods contain natural chemicals that have been
shown to have positive health effects in laboratory studies. These
include
antioxidants,
vitamins
and
minerals.
It’s certainly true that a healthy diet can help to reduce the risk of cancer, cardiovascular disease, diabetes but it is unlikely that any single food
will make a major difference on its own.
Cancer Research UK note that Superfoods are often promoted as having
an
ability to prevent or cure diseases, including cancer; they caution,
'you shouldn’t rely on Superfoods to reduce the risk of cancer. They
cannot substitute for a generally healthy and balanced
diet'.
Fighting Cancer with Superfoods?
There is some lab data that show that some of these ingredients can affect
cancer cells
in a laboratory setting, including killing them and
stopping them from growing. But unfortunately jumping to the conclusion
that eating those nutrient-rich foods can affect your cancer outcome is a
biiiiiiig leap!
First of all, your body is a complex organism and the interactions between the food we eat and our bodies are much more
complex than those between a purified chemical and cells in a tube.
Secondly, food is itself complex: An isolated chemical may behave very differently in a test tube than when it is eaten as part of food.
Last but not least, dose as always is of paramount importance. Even eating very large portions of a ‘superfood’ might not provide
enough of a specific ingredient to a sufficient amount to have any
effect on our health. For example,
garlic contains a nutrient alleged to help reduce
cholesterol and blood pressure. But you'd have to eat up to 28 cloves a
day to match the doses used in the lab!
Is it bad though?
As part of a healthy diet, the short answer is not at all. With everything though, dosing and pacing are essential. You won't get a quick fix by gorging yourself on Superfoods, you won't cure any disease and your disease risk may not be that much reduced if you are already on a healthy diet. If anything, an exclusive diet might put you at risk of deficiency of other essential nutrients.
Some foods when eaten in large quantities can put you at risk of toxicities - think fish and mercury - for example, some
seaweeds contain natural toxins which are thought by some to increase risk of cancer and liver damage.
Do you like your Superfoods? Do you include them in your diet on purpose?
See you Soon for more Sexy Science,
References and further reading
Wikipedia
Cancer Research UK - Superfoods
NHS - Superfoods