Showing posts with label saturated fats. Show all posts
Showing posts with label saturated fats. Show all posts
Thursday, May 7, 2015
The Shocking Truth About Takeaway Food
Takeaway food, particularly the ever-so-delicious doner kebabs, chicken kormas or garlic bread pizzas, are among modern life's little guilty pleasures. We regard them as dangerous for our weight, but often tell ourselves that if we only have them once or twice every couple of weeks, they are unlikely to cause too much damage. A recent study conducted in Britain is likely to drastically change our rather lenient perspective on takeaway fast food and its impact on our overall state of health. But beware - once you've read this, you're likely to never look at a doner kebab the same way, ever again.
The study in question found that a 400g serving of doner kebab can contain as much fat as a wine glass of cooking oil and usually contains no less than 139.3g of fat - which is twice as much as the recommended daily maximum fat intake for a woman. A chicken korma (a mild curry dish made with yogurt or coconut milk for added creaminess) was shown to contain 95.4g of fat, while a medium pizza with garlic bread contained 81.5g of fat. In fact, about 86% of the meals reviewed by this study were found to be extremely rich in fat and salt, making them extremely serious threats for all of us.
"If this kebab weighs 400g, the fat content is a quarter of the meal. That, on its own, gives you 1,000 calories - equivalent to a wine glass of cooking oil. The majority of that fat is saturated so it's going to raise your cholesterol and give you thickening of your arteries. If you were eating that meal twice a week on top of your ordinary diet, it's a ticking time bomb of coronary heart disease", said Denise Thomas, head of nutrition and dietetics at Portsmouth Hospitals Trust.
Another danger comes from the fact that the damage caused by the high fat and salt intake builds up over time and does not show immediately, therefore people are unlikely to realize just how bad this type of diet is for them. "The older or more inactive you are, the more likely it is you won't clear it from your system", Denise Thomas explained. If you eat lots of fruit and vegetables, then you're not as exposed as if you were keen on eating lots of calorific fried foods at home, too.
"If you're eating pie and chips and fried breakfasts as well, you're heading towards a heart attack within ten years", Thomas warned. The conclusion is simple: takeaway food is bad news and we should avoid it at all times, or if that's impossible, at least try to balance the occasional kebab with eating lots of fresh fruit and vegetables every day to counteract the effects of the saturated fat buildup.
Wednesday, May 6, 2015
Why Are Trans Fats Bad For You? The Disturbing Truth
There is a lot of disagreement in nutrition. But one of the few things people actually agreeon is the unhealthy nature of trans fats.
Fortunately, consumption of these horrible fats has gone down in recent years and decades. But we are still eating way too much of them, which has various detrimental effects on health.
This article takes a detailed look at trans fats… what they are, why they’re so bad for you and how to avoid them.
What Are Trans Fats?
Trans fats, or trans fatty acids, are a form of unsaturated fat. Unlike saturated fats, which have no double bonds, unsaturated fats have at least one double bond in their chemical structure.
This double bond can be either in the “cis” or “trans” configuration, which relates to the position of hydrogen atoms around the double bond.
Basically… “cis” means “same side,” which is the most common structure. But trans fats have the hydrogen atoms on opposite sides, which can be a problem.
Natural vs Artificial Trans Fats
Natural trans fats have been part of the human diet ever since we began eating the meat and dairy from ruminant animals (such as cattle, sheep and goats).
Also known as ruminant trans fats, they are completely natural, formed when bacteria in the animal’s stomach digest grass.
These trans fats typically make up 2-5% of the fat in dairy products and 3-9% of the fat in beef and lamb.
However, dairy and meat eaters do not need to be concerned.
Several review studies have concluded that a moderate intake of ruminant trans fats does not appear to be harmful.
The most well-known ruminant trans fat is conjugated linoleic acid (CLA), which is believed to be beneficial by many and often consumed as a supplement.
It is found in relatively large amounts in dairy fat from grass-fed cows, which is extremely healthy and linked to a reduced risk of heart disease.
However… the same positive things can NOT be said about artificial trans fats, otherwise known as industrial trans fats or hydrogenated fats.
These fats are created by pumping hydrogen molecules into vegetable oils. This changes the chemical structure of the oil, turning it from a liquid into a solid.
This process involves high pressure, hydrogen gas, a metal catalyst and is highly disgusting… the fact that anyone would consider them suitable for human consumption is baffling.
After they have been hydrogenated, the vegetable oils have a much longer shelf life and are solid at room temperature, with a consistency similar to saturated fats.
Although humans have been consuming natural (ruminant) trans fats for a very long time, the same is NOT true for artificial trans fats… which are seriously harmful.
How to Avoid Trans Fats
Big improvements have been made in recent years, although trans fats are still present in many processed foods.
In the US, manufacturers can label their products “trans fat free” as long as there is less than 0.5 grams of trans fats per serving.
You can see how a few a “trans fat free” cookies could quickly add up to harmful amounts.
To make sure you’re avoiding trans fats, read labels. Don’t eat foods that have the words “hydrogenated” or “partially hydrogenated” on the ingredients list.
Unfortunately, reading labels isn’t enough in all cases. Some processed foods (like regular vegetable oils) can contain trans fats, without any indication on the label or ingredients list.
One US study that analyzed store-bought soybean and canola oils found that 0.56% to 4.2% of the fats were trans fats, without any indication on the packaging.
In order to avoid trans fats, the best thing you can do is eliminate processed foods from your diet.Choose real butter instead of margarine, and olive oil or coconut oil instead of harmful vegetable oils… and make time for home-cooked meals instead of fast food.
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