Friday, February 15, 2013

Acrylamide



You’re probably well aware that carbs like French fries, potato chips and white bread can be empty calories that help you pack on the pounds. But did you know they can also contain a toxic by-product of the cooking process that’s been linked to cancer?

The substance is called acrylamide. It’s an industrial chemical known to increase infertility and neurological problems at high doses. The EPA regulates acrylamide in drinking water to protect public health. But it’s not regulated in food.

We haven’t known about its presence in food for long – because it’s not an ingredient or a contaminant. How does it get there? Here’s how: Certain natural sugars and certain natural protein building blocks become fused together to form acrylamide when temperatures top 250°F (typical toasters top 300°F). Many foods don’t have the right combo of nutrients to produce acrylamide, even when cooked for a long time, but a few very popular ones do.

Here are the top foods to be aware of:
  • French fries and potato chips
  • Crackers
  • Toasted breakfast cereals
  • Cookies
  • Bread


And, the browner the toast or cereal or potato, the more acrylamide it likely contains.

All other things being equal, frying produces the most acrylamide. Roasting is better. Baking better still. And when it comes to acrylamide, steaming or boiling can produce none at all.

Fast Facts
  • The amount of acrylamide in a typical large order of fast food fries can be 200 to 2000 times the amount allowed by the EPA in a glass of water.
  • The #1 source of calories for American kids is cooked white flour snacks and treats.
  • The top two “vegetables” eaten by kids are French fries and potato chips.
  • Experts suggest that 30% of all cancers are caused by diet. Perhaps acrylamide plays a key role.
The Good News

Now, the good news: There are easy ways to reduce your exposure and protect your family.

The basic idea is to dial it back. Dial back the temperature, dial back the cooking time above 250° F, and dial back the number of servings of french fries or crackers. Here’s how:

Change how you prep carbs.
If you’re going to cook potatoes, consider putting them in a bowl of water 30 minutes before you cook. This can cut acrylamide levels by up to 38%. Soaking for two hours does even more and doesn’t take extra work, just a bit of forethought. Even rinsing potatoes before cooking helps.

Here’s another trick: Store potatoes in a cool place but NOT the fridge. Storing potatoes in the fridge prior to cooking increases acrylamide when you bake them.

Many kids like the crusts cut from sandwiches, and they might be on to something! Crusts have the highest acrylamide content before and after you toast it.

And if you bake your own bread, add some rosemary (roughly 1 teaspoon) to dough prior to baking. This can reduce acrylamide by up to 60%.

Change how you cook carbs.
Next time you roast potatoes, take them out when they’re golden yellow rather than crispy brown.

If you want to eat potatoes and avoid acrylamide altogether, consider steaming or boiling.
The water can keep the temp at 212°F, below the 250 °F needed for the acrylamide reaction. Microwaving also does not tend to create acrylamide.

Toast your bread for a shorter period of time and at the lowest level. Or skip the bread altogether. Make your sandwich or burger on a butter lettuce wrap.

Change what carbs you cook.
Try broccoli, cabbage, cauliflower and Brussels sprouts. These are all cruciferous vegetables and contain agents that could both deactivate cancer-causing chemicals and stop the growth of existing cancer cells. So, five or more servings a week could offer dual protection against the effects of acrylamide. (I’m not suggesting you can have all the fries you want if you eat broccoli! We don’t know of any foods that get directly rid of acrylamide in your body, but cruciferous veggies have been linked in some studies to lower cancer risks.)

Keep in mind that this isn’t a new problem. We’ve been eating acrylamide in foods for a long time, we just didn’t know it. There’s no reason to expect a new epidemic. I’m most concerned about this problem for women, since acrylamide has been shown to affect reproductive organs, and for kids, since they’re still developing and more vulnerable to carcinogens in general.

While it’s not a new problem, we’re talking about a new solution. By reducing acrylamide, there’s a chance we could lower cancer risk and neurodevelopmental problems.


http://www.doctoroz.com/videos/toxic-toast-411-acrylamide


What solution is the industry implementing?

The industry's acrylamide mitigation efforts are truly global in scope. The industry has developed a special process using the enzyme, asparaginase, to mitigate acrylamide's natural formation in dough-based foods. This process has been implemented worldwide in every country that has approved the process.
In Europe, a guidance document or “Toolbox” has been developed by the European food processors' trade association (FoodDrinkEurope), in collaboration with European regulators and with input from the GMA and many of our member companies. The toolbox highlights possible ways to reduce acrylamide in different types of products. The industry follows this guidance and has implemented many of the techniques as well as others that industry discovered through its own research.

Will these changes eliminate acrylamide from all products?

Currently, there does not appear to be a practical and effective method for completely eliminating acrylamide from many kinds of products. There is not a single solution that can be applied to all foods. Nevertheless, through research and innovation, the industry is discovering ways to reduce levels of acrylamide in many foods and continues to develop innovative ways to reduce levels even further.

 

Are there other ways humans are exposed to acrylamide?

Food and cigarette smoke are the major sources of acrylamide exposure.  Exposure to acrylamide from other sources is likely to be significantly less than that from food or smoking, but scientists do not yet have a complete understanding of all sources of exposure. Acrylamide and polyacrylamide are used in some industrial and agricultural procedures, and regulations are in place to limit exposure in those settings.

The information in this post is simply meant to inform-not to totally overwhelm.  I certainly do not expect my family to make such a lifestyle change to cut acrylamide out of our diet.  But after researching I will make some changes to decrease our intake.  This morning while making sandwiches for the kids lunch I cut the crust off.  The next time I am eating french fries I might skip over the darker ones.  I will not allow my french bread to get too toasted when making it.  I may skip the toasted cereal in the morning and just have fruit.  These are just some of the corrections that I will make from this point forward-now that I know a little more about acrylamide.



From Robin:  My husband is the medical officer for a military team that deals with Weapons of Mass Destruction.  I showed him Tricia's article and he informed me that Acrylamide was the neurotoxin as the mystery substance in their last training exercise.  I find this very interesting and yet depressing.

1 comment:

  1. Zero acrylamide - www.zeracryl.com

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