« Chick Housing and Indoor Air | Main | Milk is Milk Billboard Tagged »

Is it unhealthy to microwave food?

In my book I discuss the importance of dietary nutrients in fighting depression. We need to add them to our diets. But the flip side of the coin is that we need to preserve the nutrients we have. We need to avoid activities that will require more nutrients. Stress and toxic exposure, for instance, can actually deplete our body of nutrients. A previous version of the book had an expanded section on structures and an entire chapter was dedicated to "food structures." We have cut this area out of the book to keep the book focused on food nutrients, but it is still an interest of mine and may be another book at some point. In researching that part of the book, I intended to include research on the microwave - does microwaving our food affect its nutrient content?

There is research on nutrient loss in microwaved food. The loss is not much greater than other cooked foods and it may be less in some cases. But what I hoped to find more studies on is whether the microwave does something really sinister to food. I've wondered about that for years and heard a lot of rumors.

There is Hans Hertel's swiss study as reported widely on the internet by Tom Valentine. Although Tom Valentine lives on the central coast here in California where I vacation regularly, an email to him about the study got me nowhere.

There have been discussions on message boards about microwaved water not supporting life. These discussions increased about a year ago when a grade school student did a microwave-related study for a science fair. Here results were posted by her grandmother here:

http://www.execonn.com/sf/

I was intrigued. I decided to replicate the science fair project. I have much less patience, however, than a student preparing for a science fair. I took a much quicker path to determine if microwaved water supports life: I sprouted sunflower seeds.

I used four waters: boiled, warmed tap, warmed distilled, and heated microwaved water. (Why all the waters? Why not.) I cooled them all to about 105º Fahrenheit and soaked ¼ cup of sunflower seeds in each for eight hours. I left the remaining water out at room temperature and used it to rinse the sprouts. After the eight-hour soak I drained the seeds, put each of the four samples in a mason jar, and let them sprout. I rinsed the seeds about every twelve hours with their respective room-temperature water.

Yes, I realize the sloppiness in the design elements. But I figure it would be like the pregnancy test I took with Frederick: the first one I gave a passing glance and went back to sleep. When I noticed a line two hours later, I took another test. I was not sure that I administered it properly, so I did another and another until my administration of the test might as well have been for an Olympic trial. Then I went to the hospital for a real test. So you can fix sloppiness with later trials if you find a reason to do so.

I found no reason to do another test. All seed samples sprouted nicely. In the picture below, the microwaved sprouts are on the left and the warmed tap sample are on the right.


microwave

As the microwaved sprouts were coming along, I wondered why the science project results would have turned out as they did.

"Mom, do you think she microwaved the water in plastic?"

"Yes, of course. Everyone does."

"Really?"

I am so microwave ignorant that I could not imagine microwaving in anything but glass. And as it was I had to walk into a neighboring house to get our microwaved water sample.

Notice on the science fair site that she has updated it with information that the water was microwaved in plastic.

I see another sprout experiment in our future.

TrackBack

TrackBack URL for this entry:
http://www.rebuild-from-depression.com/cgi-bin/mt/mt-tb.cgi/9.

Listed below are links to weblogs that reference Is it unhealthy to microwave food?:

» Heckled at the raw milk symposium from Rebuild from Depression Blog
I have survived the AVMA raw milk symposium and, more importantly, survived the flying with a seven-month-old baby. Seattle is as wonderful as I remember it and even provided us with two clear, sunny days while we were there.... [Read More]

Send This Entry To A Friend

Email this entry to:


Your email:


Message (optional):


Comments (6)

Interesting little experiment. I still don't trust microwaves. It just seems unnatural to heat food from the inside out, when every other traditional form of heating food is from the outside in.

Hear is an interesting, and I'm sure controversial paper on Mercola's website: http://www.mercola.com/article/microwave/hazards.htm

For the most part I err on the safe side and avoid microwaving food as much as I can, just haven't had the will power to completely eliminate using one.

I can't tell from the photo which is which. Or is it not completed yet?

Thanks for the link, Mike!

I'll have to see if I can find some of those studies. The Hertel one sounds most interesting but I haven't been able to get it. Does anyone have it?

Jen,
The sprouts from the microwaved water are on the left and the warmed tap water on the right.

Amanda

Franken Stein | March 1, 2007 5:19 AM | Reply

Well, it seems SNOPES has gotten a hold of this particular experiment on microwaving seeds and actually did their own "controlled" experiment with interesting results. The resulting conclusion being that microwaving is safe. They even commented on the reports concerning the microwaving of blood in hospitals.

Here's the link: http://www.snopes.com/science/microwave/plants.asp

Was the tapwater from a well? Or was it from a municipal water supply containing chlorine and fluoride and whatnot?

Teo -- The water is well water from a pretty clean source in the southern Sierras at about 3500 ft elevation. I used some distilled water too but didn't show the picture. They all sprouted at the same rate.

Franken -- Thanks for the link. I agree, it doesn't exactly follow from these little experiments that the microwave is A-OK.

Amanda

Post a comment

(If you haven't left a comment here before, you may need to be approved by the site owner before your comment will appear. Until then, it won't appear on the entry. Thanks for waiting.)

Rebuild from Depression


Rebuild from Depression Book

Endorsements

The best book on postnatal depression and food I've seen is Rebuild from Depression, by Amanda Rose, who understands the condition from bitter experience.
Nina Planck,
Author of Real Food

Rebuild from Depression is going to be a very important book. Its dissection of the role of diet and nutrition is well-researched and an eye-opener.
Robert Kotler, MD, FACS
Clinical Instructor, UCLA

Rebuild from Depression provides real answers for reversing depression caused by common nutritional deficiencies.
Jan DeCourtney, CMT
Co-author, Recapture Your Health


Read sample chapters
& more endorsements.


Buy the book!


Buy the book


Archives

About



Amanda Rose, Ph.D., is a political scientist and author of "Rebuild from Depression," on the link between nutrient deficiencies and depression. She has been depression-free for over four years, even during the recent pregnancy of her second child. Read her postpartum depression success story.

Depression buster foods




From an analysis of over 5,000 foods in the USDA nutrient database, "depression buster foods" are the foods highest in combination of the seven nutrients most commonly associated with depression. Brains need nutrients to be healthy, particularly those nutrients in these foods for depression. The depression buster food list is published in the book "Rebuild from Depression." A subset are displayed here in the depression buster photo album.

Omega 3 foods




Omega 3 fatty acids are critical for brain health and they are disappearing in the Western diet. You need to consume more Omega 3s and fewer Omega 6s. These photos and descriptions of Omega 3 foods will offer you some guidance. Omega 3 fatty acids are one nutrient that helps fight depression. Read more about the Rebuild philosophy on depression-fighting foods.

Food science graphs



For food science junkies, here is a graph archive based on peer review studies presented on this blog. Each graph has a general explanation and provides a quick link to more detailed discussion.

Gill on the Hill:
Life after depression


There really is life after depression. I am so excited by that point, in fact, that I neglect this blog and find fun/quirky projects to do with my family. We live in the Sequoia National Forest in a house (and former brothel) designed by Irving Gill. My 7-year-old son Frederick and I chronicle our adventures at Gill on the Hill when we're not exploring. Frederick posts some of his homeschool projects at "Frankly Frederick."

Follow me on Twitter


Twitter Updates

    follow me on Twitter

    Phytic acid research