Is Microwave Radiation Harmful?

Detox Specialist
Nutrition for Cancer Prevention and Longevity

Have you ever been worried about using your microwave oven because you’ve heard that it may harm you in some way? Or that it may destroy the micronutrients in your food? Or even cause cancer?

Are these myths? Are we worrying about nothing? Or is there some truth to these?

Don’t worry. By the end of this article, we will have addressed each of these concerns.

Do microwaves destroy beneficial nutrients?

Microwave ovens have been becoming increasingly popular since the 1960’s, due to their convenience, high energy efficiency, rapid processing time and ease of use.

Researchers have since been investigating how microwaving foods may influence their nutrient content, in a good way OR a bad way.

In a study published in The Journal of Agricultural and Food Chemistry, it was found that broccoli retained all of its minerals when microwaved but lost vitamin C, which leached into the added water.

Does this mean that we should avoid microwaving our vegetables?

Not necessarily.

Firstly, vitamin C is quite volatile in heat, so cooking in general causes its loss. Luckily, C is plentiful in raw fruits and vegetables, so you can compensate there.

Now, here's the most interesting part:microwave cooking has been shown to produce the lowest antioxidant losses in 20 vegetables when compared to pressure-cooking, boiling or frying. That’s really good news.

What about omega 3 in fish?

A study published in Food and Bioproducts Processing investigated the effects of different cooking methods on the nutrient content of seabass. Losses of omega 3 fats were higher in the microwaved seabass than in the fried seabass. However, the researchers agreed that the fried seabass added unwanted fats into the mix and wasn’t as healthy as microwave cooking!

When it comes to choosing a cooking method, it really comes down to you (or your client), your personal goals, which nutrients you want to get more of, and which ones you’re trying to avoid!.

Are microwave containers risky?

As I’m sure you’ve heard, concerns have also been raised about the use of plastic containers when microwaving food.

When food is wrapped in plastic or placed in a plastic container and microwaved, chemicals from the plastic can leak into the food.

This seems to be causing a lot of worry for people but, according to the Harvard Medical School, this is closely regulated: tests are conducted to ensure that unsafe amounts do not leach into foods and only containers that pass this test can state that they are approved for use in microwave ovens.

On the other hand, the organisation Breast Cancer UK urges the authorities to ban BPA, a type of plastic not only used in microwave ovenware but also in most packaged products! So, if you’re concerned about these risks, switch to the safest alternatives, such as glass and porcelain containers for microwave cooking.

Does microwave radiation make foods radioactive?

Perhaps the biggest health scare out there is inflicted by those who claim that microwaves emit ‘harmful’ radiation, turning innocent food compounds into radioactive substances capable of causing cancer.

But is this true?

These claims are so worrying that it’s worth getting into the nitty gritty of microwave radiation.

What is radiation?

Have you ever thought about what radiation actually is?

Radiation can be found all around us, in varying amounts. It is essentially the release of energy, which is given off by everyday things, such as the sun and household electrical appliances.

We are always being exposed to natural background radiation. From radioactive gases given off from the earth, to radioactive substances in the soil.

Have you ever had an x-ray? That’s another form of radiation.

Ever used a sunbed? Also radiation.

Your mobile phone gives off radiation, as do computers, heaters, and radios. It’s everywhere!

So does this mean that we are in constant danger from microwaves and the world around us? Let’s investigate.

Firstly, it is important to understand how a microwave works.

How do microwaves work?

Before we talk about how microwaves heat your food, let’s make a distinction between two very different kinds of radiation:
1. ionising radiation, and
2. non-ionising radiation.

Ionising radiation, which can remove tightly-bound electrons from atoms, causing them to become charged, is less risky in very tiny amounts (such as x-rays) but can cause problems when exposure is high (think burns and even DNA damage).

However, microwaves emit non-ionising radiation; a type of radiation that has enough energy to move atoms around within a molecule but not enough to remove electrons.

What does this mean?

Because the radiation from microwaves is non-ionising, it can only cause molecules in the food to move. This is good! In other words, microwave radiation cannot alter the chemical structure of food components.

More precisely, when heating food in a microwave, the radiation that the microwave produces is actually absorbed by the water molecules in the food. This energy causes the water molecules to vibrate, generating heat through this (harmless) friction, which cooks the food.

This mechanism is what makes microwaves much faster at heating food than other methods. Its energy immediately reaches molecules that are about an inch below the outer surface of the food, whereas heat from other cooking methods moves into food gradually via conduction, like the bottom of a saucepan directly touching a hot hob ring.

So, is microwave radiation harmful?

Some say that the energy given off by microwaves is enough to damage one’s genetics (DNA) and subsequently cause cancer.

But is there any good evidence to support this theory?

Several studies have been carried out using laboratory animals and in-vitro systems (outside of a living organism) but few have studied living, human tissue so it is difficult to find causal associations.

In 1997, Peter Valberg reviewed all of the epidemiological studies at the time, which looked at the incidence and distribution of cancer in relation to microwave radiation exposure and tried to determine whether microwaves increased the risk of cancer in humans.

He found very little evidence to support a causal relationship between this exposure and disease and, whilst considering what else was known about the mechanism that microwaves use, as well as what had been observed in animal studies, he concluded that microwaves do not cause cancer.

This makes sense because we know that the non-ionising radiation used in microwave ovens is not powerful enough to transfer radiation into food; it can only cause the water molecules to move.

Very few scientific studies have taken place since Valberg's review.

Having said that, a study printed in Molecular and Cellular Biology found that microwave radiation exposure did not show any signs of increased cancer risk in Swiss albino mice.

Today, Cancer Research UK, a world-leading cancer research organisation, tell us that it’s perfectly safe to use microwaves. They also say that as long as you follow a microwave’s instructions for use, it will not cause you any harm.

A huge relief, wouldn’t you say?

What have we learned?

Essentially, microwaves don’t make foods radioactive. They just heat them!

It has never been proven that microwaves cause any harm to those who use them and therefore you shouldn’t worry every time you want to heat up that pot of soup or those leftover baked beans, as long as you follow the instructions of use that came with your microwave.

Do you often cook your food in a microwave? Were you worried before? Has this article reassured you? And if you're itching to tell someone how microwaves work, please share this and give them some peace of mind!

Detox Specialist

Nutrition for Cancer Prevention and Longevity

What If You Don’t Go To University

It’s August, which means it’s that time of the year again: A Level Results Day.

And whether it’s your friends or your grandma, there’s one question on everyone’s lips…

Are you going to university?

You might be heading back from college to the tune of ‘Did you get the grades?’

Or maybe you never wanted to go to uni in the first place.

Whichever boat you’re in; what happens when your friends are prepping for freshers’ week, but you’re not?

No fear – we’re here to help! The first thing you need to consider is:

Are you sure about your decision?

It’s difficult to aim for your goals if you don’t know what they are, or how to reach them. This means that if you have a particular career in mind, you might want to see a careers advisor or thoroughly research alternative routes into the field you’re passionate about before making a final decision.

But then what? Well, first, it’s important to know…

There are a ton of careers that don’t require a university degree

It’s true! You may have considered some of these options: hairdressing, beauty, personal training.

But those aren’t the only choices – many careers have a variety of pathways into them, from accountancy, to journalism, to nutritional therapy.

Read on to see what you can do instead of going to university:

Take a Gap Year

Fondly known as the ‘gap yah’ among millennials, many teens take a year out to decide what they want to do before continuing their education. This often takes the form of travelling, learning a language, and gaining lots of experience of different cultures – but it can also involve volunteering in a mix of industries to help you make a more informed decision about your future. While this kind of break provides a temporary solution, it’s common for people to head back to school once they complete their gap year, but many teens also open doors to careers they never knew existed!

(Pssst… Looking for the latest work experience opportunities? GoThinkBig is a good place to start).

Find an Apprenticeship

Becoming an apprentice is a great way to get straight into work AND gain a qualification while you earn. From farming, to hospitality, to law, you can choose your apprenticeship from a huge selection of fields and levels, from Level 2 (GCSE equivalent) right through to Level 6/7 (degree equivalent). Depending on the level, an apprenticeship can take between 1 and 5 years to complete, but you’ll be learning loads of job-specific skills along the way.

If you’re in the UK, you can click here to find an apprenticeship.

Get an Entry-Level Job

While a large number of entry-level jobs will attract applications from students and recent graduates, many employers offer roles aimed at school-leavers – including training schemes. The obvious benefit of heading straight into work is that you’ll be earning right away.

A great way to find entry-level jobs is to keep an eye on websites that advertise vacancies in specific fields. Mediargh is a great example for media-related careers (publishing, science – whatever).

Become an Entrepreneur

Ever wanted to start your own business? Now might be your chance! This can be an exciting option for those not looking to go to university, but it’s wise to first consider the funding, support, and advice you’ll need along the way. If you’re in the UK, check out these government guidelines for new businesses.

For an extra boost when it comes to marketing your business effectively, check out Google’s Digital Garage for free digital marketing training.

Study for an Online Diploma

A huge barrier for many prospective students is the possibility of getting in over £50,000 of debt for a qualification in an area they’re not entirely sure about, or wasn’t necessary for their preferred career.

Whether you’re looking to boost your entrepreneurial endeavours, or you want to get a feel for a subject before jumping into a degree, an online diploma can be a great way to go! Loads of platforms offer you the chance to study via the web and many don’t require specialist technology, so you can get going with just a laptop and a cup of tea.

If it’s nutrition you’re into, we at The Health Sciences Academy® have a whole host of certifications and short courses for you to explore.

Nutrition not your thing? Not to worry – there are loads of other great providers out there. Check out Coursera and Lynda for an array of online courses on a variety of subjects.

They’re called options for a reason…

It’s important to remember that choosing to not go to university isn’t something that sets your career in a permanent direction. You may try one of the above and decide you want to go to uni after all! Perhaps you want some work experience, maybe you’re looking to boost your know-how before embarking on a degree, or you might even decide to do both an online course and an apprenticeship – the point is: the sky’s the limit.

What you’re doing this September doesn’t necessarily define the rest of your life, but it CAN boost it. Do what’s best for you and remember: it’s quite natural to need a little bit of extra time to work out where you want your career to go.

The Health Sciences Academy® is the UK’s largest online educator in nutrition science.

We are home to a variety of Level 5 online diplomas, in addition to a range of accredited short courses in nutrition topics – ready to help you ignite your career.

Nutritional TherapistProfessional Diploma Level 5

Become a certified
Nutritional Therapist

Get started today for $1199 or $120 monthly

By completing this form you explicitly agree to our Privacy Policy and consent to The Health Sciences Academy ® emailing you with our newsletter and relevant information about our products and research studies. You can withdraw consent or adjust your preferences at any time via the footer in our emails, by simply replying to an email or by contacting us. We're here to help you make a difference.