Why You Should Never Microwave Your Food

by Dr. Edward Group DC, NP, DACBN, DCBCN, DABFM Published on , Last Updated on March 2, 2015


Microwaving is a simple, convenient cooking option for people on the go. The microwave oven has been a mainstay in the US for 30+ years, virtually transforming society and how we view food. But despite its wonders, the question that’s been avoided remains: are microwaves the healthiest cooking option? The answer is, of course, no, as there are much better options available that will ensure nutrients will remain in your food.

How Does Microwaving Work?

Before we dive into the research on the possible effects and safety of microwave ovens, let’s clarify what a microwave is. A microwave is a form of non-ionizing radiation. As a matter of contrast, ionizing radiation changes the electromagnetic nature of atoms, or ionizes them. This alters the way they interact with other atoms and molecules around them. X-rays, gamma radiation, and nuclear medicine (CT scans, barium swallows, and mammograms) are types of ionizing radiation. Your food is being zapped by high-frequency waves of heat, and some people argue that this radiation can be harmful to your health.

One study by Dr. Hans Hertel explored how microwaves change the molecular structure of food and the effects of that food on the human body. In his study, he found that individuals who consumed the microwaved foods experienced a decrease in HDL cholesterol, a reduced red blood cell count, and fewer white blood cells. Unfortunately, no studies have been conducted since to replicate Dr. Hertel’s findings, so it would be reaching to conclude that microwaving does indeed deteriorate health. Still, there are other cooking options that may be far better at retaining the nutritive quality of food.

The Best Cooking Options for Maintaining Nutrition

Microwaving cooks the food at very high temperatures in a very short amount of time. This results in a great deal of nutrient loss for most foods, especially vegetables. Our foods are also subjected to nutrient loss when we boil, fry, or roast our food. Boiling vegetables, for example, leeches most of the nutrients (including antioxidants) into the water. The best option for cooking vegetables that will result in only a minor loss of nutrients is steaming. Sautéing and baking at low temperatures is also a viable option that will retain more nutrients than microwaving, boiling, or frying. Of course, by making the majority of your diet raw, with some added dietary fat to help absorb the fat-soluble vitamins (A, D, E, and K), you’ll ensure a high level of nutrient intake.

Adding To the Toxic Load

When it comes specifically to microwaves, damage to the food itself isn’t the only concern. Many microwavable foods are processed and in packaging that contains an assortment of chemicals. Chemicals found in many of these containers include benzene, toluene, polyethylene terpthalate (PET), xylene, and dioxins (known carcinogens). At high temperatures, it is likely that chemicals can absorb into the food, and intake of these chemicals presents a high health risk. What’s more, the chemicals in the food themselves are also a cause for concern.

Perhaps one of the most dangerous contaminants in microwavable food is BPA. A watchdog report from the Milwaukee-Journal Sentinel found this estrogen-like plastic leaked from all packaging into the food tested. [1] BPA disrupts normal hormone activity. Infertility, low-libido, cardiac disease, mental disorders, allergies, high blood pressure, and weight gain have all been linked to BPA exposure. The simple fact is, when you use a microwave, you’re getting a lot more than the food you eat.

One Final Thought

Over the last 30 years, the science and research has come a long way to understand how microwaves affect proteins, antioxidants, and overall nutrient content of food. We’ve also learned how many toxins flood our food when zapped in the packaging. Today we shouldn’t be surprised by these dangers. Instead of microwaving, stick to raw foods as the primary aspect of your diet. When you do cook, try steaming and baking as your main cooking methods.

Have you given up your microwave? Is there anyone who has never used one? Share your experiences with us.


  1. Susanne Rust and Meg Kissinger. BPA leaches from ‘safe’ products. Milwaukee-Wisconsin Journal Sentinel.

  • http://www.facebook.com/pheelyp Pheelyp Aytona

    Where is the reference/citation for the study supposedly conducted by a Dr. Hans Hertel?

  • Rusty

    I’d like to start off with I respect all the information you give and in doing so helping people live healthier lives, however, microwaves are 100% safe, the food is not changed in any way, expect the way all food changes when you cook it. There have also been many peer reviewed studies that show microwaving preserves more nutrients than any other cooking method. Please do proper research on how microwaves work. If your microwave is not leaking, and is within the specification limits, your food is safe, just as nutrient dense as any other form, and in most cases just as delcious.

  • G-Shock

    That’s all well and great Rusty but you’re breaking your own rule in your argument when you just expect us to take your word for it. Can you please share the evidence that unequivocally proves microwaves to be safe and the food to be nutritionally untouched?

  • Rusty

    Given the fact that there is no shred of evidence here to even suggest microwaves are harmful, the burden of proof is on them, not me. When there are thousands of studies you can find by a single search that shows you they are safe and none that hold any credibility that say otherwise. No, I don’t expect you to take my word for it, but rather to look at the studies yourself, not one I or Global Healing Center provides for you.

  • Kaja Knudsen

    Never owned one.

  • ladlasheikh

    thanks this was very helpful….


  • AngelGabe

    I have not had a microwave for about 20 years, now. Question: since they are so prevalent, and many recipes use them, how do you convert microwave recipes to oven ones? Any thoughts?

  • AngelGabe

    Vaccines are safe, cigarettes are safe, agent orange, no worries, etc. I could go on, but you get the drift.

  • http://www.globalhealingcenter.com/ Global Healing Center

    Depends on what you’re making. If anything needs to be cooked thoroughly, cook it to those specs. Doing what you’ve been doing the last 20 years should still work, right?

  • AngelGabe

    I’m talking about specific new recipes that are for the microwave, with times based on microwave cooking but that could be cooked in an oven…There are recipes out there for baking in ceramic potting pots, or mugs or even canning jars, for use in the microwave: I won’t use one, so would like to know how to convert those micro recipes to oven times. Is there some formula for conversion to oven from microwave? The only thing I can find in a search is the other way ’round.

  • ChefTed

    Hope you don’t mind if I jump in here on this. Usually with some internet searching it’s pretty easy to find similar recipes for “microwave exclusive” recipes. There isn’t a cut and dry answer that works across the board because it’s always going to depend what you’re making. For instance, you wouldn’t necessarily microwave or bake fish at the same temperature or way that you’d microwave or bake beef, or potatoes, or other vegetables, or anything really. If you find a dish that mentions the microwave, just do some searching for other similar recipes and you’re bound to find some that don’t use the microwave.

  • PatnCats

    Hi Doctor! I gave up the microwave when a cancer nurse and homeopathic healer gave me a copy of the German Drs study. I was shocked and got ride of it. It has been about 8 years and I don’t miss it. I just heat food in a small toaster oven or use my cast iron skillet or stainless steel pot. Never have missed it and my food tastes so much better! I never eat at restaurants that micriwave either. Shabby cooking ! I tell everyone about the German Drs study and how blood levels change. I have good blood chemistry per my doctor’s blood test. My cholesterol level was 245 steady the bad kind that is. So I go on Crestor then when it drops to below 100 then I quit for a month as I have fibromyalgia. I’ve just started taking a gFS green food supplement from Herbal Healer Academy as I need help for fibromyalgia and the medications for it make me sick with severe migraines – serotonin in the meds I don’t need. Blessing. Pat

  • PatnTrucks

    Oops I posted to someone else’s question. Anyway I bought a good used Julia Child’s cookbook the Joy of Cooking and beats the day lights of anything found that needs microwaved!! That woman can sure cook! I would guess the standard 350 degrees for 39 minutes should sum up a lot. I trashed my microwave 8 years ago when I read the German dictor’s study. It was very detailed and scientifically based. Food changes at the molecular level in a microwave and is lacking in nutrition. And the packaged garbage they sell for microwave food is appalling. I’ll tske Julia Child recipes any day! Happy REAL cooking!! Food tastes better cooked rhe old fashioned way! Steel pots and a caste iron skillet are all that one needs! Hugs!

  • PatnTrucks

    I bought Julia Child’s cookbook and never have any problems. Forget microwave cooking I threw mine away 8 years ago and never regretted it. I read the German dictor’so study on how it changed blood chemistry.

  • PatnTrucks

    Yes I know the containers you mention. I have a German clay roaster but the bottom is glazed and the top not glazed but is soaked in water for 20 minutes to provide moisture. I would not use a clay flower pot to cook in as they are unglazed and may contain lead or something else as nasty depending upon country of origin. To replace the canning jars use pyrex in the oven. As I mentioned The Joy of Cooking with Old Julia is a time and true method. And really delicious.

  • PatnTrucks

    You are very smart!!!

  • plusaf

    Sorry, G-Shock, but you’re tossing that red herring in and I can recognize it. You’re asking for 100%-safety PROOF on a long-term-basis data set that doesn’t exist, and until you are delivered that impossible data set, you won’t believe microwave ovens could ever be safe.
    Fess up! Microwave ovens operate on the principle that when the right frequency of electromagnetic radiation (that term alone is scary enough for you, isn’t it?) is applied to materials that contain water or fat molecules, the interaction causes those molecules to absorb the energy and vibrate or spin… a basic characteristic of a material absorbing energy and Heating UP.
    No chromosomes are damaged and no nuclear radiation is involved. Those fears are all bogus.
    The nutritional degradation from microwave heating should be impossible to detect as being different from heating over a wood fire or an electric wok OR a magnetic-induction stovetop, too!
    The onus IS on YOU to bring evidence that any of the worries you have or the changes you fear HAVE really occurred, and that you’re not just saying things out of a ‘fear that it might happen.’
    That’s Bad Science and poor thinking. I don’t know where you learned to logic things out like that, but you really should go back and question that ‘teacher’ at length. They’ve misled you down a dark path.

  • plusaf

    Oh, bullcrap.. NOTHING is 100% “safe” and that’s what you’re demanding of anything and everything you could put on such a list.
    Some of those things are know to do serious damage and others have risks so small that the benefits overwhelm the risks.
    Nothing can deliver the 100% safety you’re demanding. So, what’s your point in demanding it? 100% safety and security in this world? Sorry, wrong universe, wrong planet. Good luck finding what you’re looking for. It’s not on Earth.
    No matter how much you’d like it to be… or demand that it be delivered to you like that.

  • plusaf

    Spot on, and great challenges to the Bad Science Believers!

  • kiwi-ian

    Google “organic food causes autism” and you should find a graph showing that there is an almost perfect correlation between the sales of organic food and the diagnoses of autism.

    The graph is real, the data are reliable, the correlation is 0.98 (perfect is 1.00).

    Using the “scientific” analysis prevalent on sites such as this one and the conclusion would be “organic food causes autism, the facts are there”. But there isn’t a scientist around who will claim this, because there is a difference between causation and correlation.

    That’s why what may seem blindingly obvious to you is ignored by scientists. Because organic food does NOT cause autism even though the facts show it does.

    Sometimes you just have to look up the real facts.

  • oldskool

    Several years ago Kirlian photography picqued my interest. What concerned me the most was the difference in the pictures between microwaved water and water heated conventionally. The difference was clear to me and I use my microwave as little as possible.

  • Beauty1976

    I gave up my microwave three years ago. I haven’t missed it once I was always kinda scared of them. I would leave the room when I would turn it on. So I finally chucked it out good riddions one less toxic thing in my home.

  • Zombie apocalypse with beans

    i bought my first microwave oven back in the late 70s. At first we were all quite concerned with being radiated to death just by standing next to this new modern convenience. So i did a little research at our local area library, via this one unfounded fear. While studying the principal of operation i found this device to be most practical and well shielded too. Its just a food cooking device that uses pure RF energy that comes in the form of 100s of watts at a high freq. The magnetron tube utilizes about 2Kv of DC power provided by a high voltage transformer via rectifier filter cap with a build in resistor. Add to this a high current filament voltage supply provided by a separate winding on that same transformer to the tube and that’s all that’s needed to start the oscillation of this air cooled tube kicking out those watts while operating in a very low microwave freq band.

    Now it may be oscillating at a freq of about 2.4 GHz which is in the low end of microwave. However, it is still considered RF radiation with nothing nuclear associated with it in the least. i have owned at least a dozen or more different models since that first model, and never once have i noticed any health concerns associated with using any of these devices to cook my meals with, this especially potatoes that are # 1 when it comes to microwave cooking. As for that popcorn jazz? Never really cared much for it, to much weird junk mixed in with it to be considered healthy…

    Lastly when cooking with any microwave oven, lets face it we are indeed dealing with meats 90% of the time… Some that may have a little surprise? Like that not so healthy bacteria via processing storage whenever! Just waiting to attack once delicate digestive track. Note: can’t recall one time i had any problems with the quality of prepared food via microwave oven…

    Thus, i believe this high freq energy destroys those harmful bacterias instantly, (food poisoning) that normal cooking often misses…

  • Tory Abraham

    you are poor

  • kiwi-ian

    Oh dear, you are going to upset a lot of people!!

    MW ovens use DC? True, but it messes up a current theory that AC causes some of the MW oscillations and that oven MWs (AC) are different from sun MWs (DC).

    MW frequency is 2.4GHz? True too, but that is completely counter to the argument that AC frequencies (60Hz in the US, 50Hz nearly everywhere else) are a cause of MW frequency.

    MW Popcorn bad for you because of the additives not the MW bit? Absolutely true.

    In fact the only statement I disagree with is that MW ovens are used mainly for meat, I much prefer the carcinogenics in traditionally cooked meat that have been browned. It’s an unfortunate fact that if it tastes nice it’s either fattening or carcinogenic. I use the the MW for the best scrambled eggs, lovely jacket potatoes, quick baked beans, and of course reheated left-overs.

  • Peter Ayisi


  • martha mathews

    How I wish it were possible for me to just forget mws. Food definitely tastes better when cooked properly or not at all. What do I do, living in a facility for elderly? The food served is unreal as it gets – canned fruits & veges – when we get them. I have always hated canned peas and nowadays those guys are staring me in the eyeballs several times a week. I just do not eat them. Our mashed pots come from a box of potato flakes. Those I do not eat even when they dress them up with canned gravy. Rarely do we receive fresh salad. They use micro to heat the food we are given to eat. Four years, i have been here and there are about 40 Residents (one committed suicide). I am all alone as my family is all dead. Here I bes, eating like I had never ever DREAMED I would eat, with no one to help me. The saddest part for me is watching these people around me slowly loosing weight. Most are older than I (68 and still walking plus no dementia) , just stay in my what they call apartment. In my little place I can afford a pizza from Hot Lips (gourmet pizza) once or twice a month and force it to last me a week. My kitchenette has no oven. A microwave and small ‘fridge that doesn’t keep things frozen in the freezer. A small counter. It is kinda pathetic but what I have. My one link to outside is to write as I am doing you. If you know what to do to help me, please let me know. The one worker I trusted has left . . . She said this place was driving her crazy.

  • John

    Do the plant test , two young plants waterd by microwave water or pan water….then tell me it’s safe.

  • K

    Dear apt(?) dweller, my dad used to use a toaster over and when they took that away he put a pan on top of his non plastic toaster and cooked himself a steak. Lived to be 100. K

  • Brad Watson

    Have you got photos of when you did the test? I’d like to see them?
    I would hope the sample size was larger than 2 plants.

  • kiwi-ian

    My son did the plant test. I am a regular judge in the local Regional High School Science Fair and see the plant test regularly.

    Problem – despite seeing dozens of these tests involving hundreds of plants, I have yet to see results that show microwaved water to be dangerous. This is the case all over the world where 1000s of these high school experiments are done annually.

    I would suggest that, rather than believing what you read on the internet, you actually do the test for yourself.

    Conclusion – despite much controversy, the experiments that I have reviewed or judged show microwaved water to be no more harmful than water heated in any other way.

  • Michael Dunbar

    This study was proven false….

  • pf3


  • TD

    Maybe microwaves are safe but SOMETHING is causing an epidemic of cancer and nobody seems to know what. Or, do they?

  • Hawaii Dean

    Patn Trucks:
    I, too, have noticed the immense loss of flavor in microwaved foods!
    This simplistic indicator, alone, should prove that molecules are breaking down.
    My brother ‘nukes’ coffee: has all the flavor of warm water!

  • Eric Sin

    This article sounds like a first grader explaining microwaves. LOL

  • Eric Sin

    Conspiracy theories usually exist in the brain

  • Khyri GuitarLoving Weatherby

    Obviously you didn’t read this correctly when they said microwaves are bad for the food and in general.

  • Pauline

    Oh Martha ..how are you today.. i am so sorry to hear..couldn’t you move to another home where the food and the staff are more friendly.

  • Pauline

    Lol..i started microwave about 6 years ago ..i have been called old fashioned for waiting so long. .but i just don’t like them..only use it to heat up food though and I must say heating up some leftovers in it ..doesn’t taste good at all..like pizzas

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