Does eating clay cause skin breakouts? Understanding geophagia, acne and what is really happening

Let's talk about one of those claims that seems to get repeated around the geophagia community as though it's an established fact:

“Eating clay gives you spots.”

Does it?

Well... not quite.

If you've started eating or exploring a particular clay and then happened to develop a breakout, it's very easy to put two and two together and decide the clay must be responsible.

But skin is annoyingly complicated.

Acne has several recognised contributing factors, including hormones, excess sebum, blocked hair follicles, inflammation, genetics, certain medicines and some dietary factors. The NHS doesn't list geophagia or clay consumption as a recognised cause of acne. (nhs.uk)

So let's look at what's actually known, and what we shouldn't confidently claim.

First, what is geophagia?

Geophagia means the intentional consumption of earth, soil or clay. In the UK, the Food Standards Agency's Committee on Toxicity describes geophagia as the most frequently reported form of pica behaviour alongside practices such as eating starch or ice. (GOV.UK)

Geophagia has also been documented across different cultures and isn't a new phenomenon. UK public health guidance has previously described earth eating as a cross-cultural practice occurring in parts of Africa, Asia and the Americas. (GOV.UK)

For many people in the modern clay community, there's also a strong sensory element.

The crunch.

The crumble.

The smell.

The flavour.

That oddly satisfying moment when you find a clay with exactly the texture you've been looking for.

None of that, by itself, tells us whether someone is going to develop acne.

Geophagia and acne are two very different subjects.

So, does eating clay cause acne?

There isn't a recognised link between geophagia and ordinary acne in the NHS guidance on acne.

That's an important distinction.

It doesn't mean we should declare clay completely harmless, either. UK toxicology guidance highlights quite different concerns around geophagia, particularly the possibility of exposure to contaminants in earth, soil and clay. The Committee on Toxicity notes that the mineral and contaminant profiles of these materials can vary considerably depending on their origin. (GOV.UK)

So the common claim that “eating clay causes spots” shouldn't simply be treated as established fact.

If you've eaten clay and then developed a spot, that doesn't automatically mean the clay caused it.

Your skin has plenty of other suspects.

So what actually causes spots?

Acne is considerably more complicated than “something went into your body and came back out through your skin”.

Thankfully.

Otherwise we'd all be walking around trying to identify which biscuit caused the latest forehead disaster.

According to the NHS, acne develops when hair follicles become blocked. Sebaceous glands produce sebum, an oily substance that helps lubricate the skin, and excess sebum can mix with dead skin cells to form a blockage. Bacteria and inflammation can then contribute to the development of spots. (nhs.uk)

There are several usual suspects.

Hormones

Hormones are a big one.

The NHS explains that testosterone can stimulate the sebaceous glands to produce more sebum, which is one reason acne is particularly common during puberty. Hormonal changes can also contribute to acne in adults, including changes around periods and pregnancy. (nhs.uk)

Sometimes your hormones simply decide that now would be an excellent time to ruin your face.

Thanks, hormones.

Genetics

Some people are simply more prone to acne.

The NHS notes that acne can run in families, with people whose parents had acne being more likely to develop it themselves. (nhs.uk)

This is one reason comparing your skin to somebody else's isn't particularly useful.

Two people can have completely different skin despite having broadly similar lifestyles.

Annoying, but true.

Sebum and blocked pores

Your skin naturally produces oil, or sebum.

That's normal.

Problems can arise when excess sebum mixes with dead skin cells and blocks a hair follicle. That blockage can develop into different types of acne lesion. (nhs.uk)

So no, your skin isn't necessarily “dirty”.

The NHS actually lists poor hygiene as an acne myth. Washing your face excessively can irritate the skin rather than fixing the underlying problem. (nhs.uk)

Bacteria and inflammation

The skin naturally contains bacteria, and the NHS notes that normally harmless bacteria can contribute to inflammation when follicles become blocked. (nhs.uk)

Again, this isn't as simple as “bacteria equals spots”.

Acne involves several processes happening together.

What about diet?

Ah, the fun one.

Every time someone gets a breakout, someone somewhere will confidently announce:

“It's the dairy.”

Or sugar.

Or chocolate.

Or gluten.

Or whatever food they've personally decided is responsible for all human suffering.

The NHS does recognise diets with a high glycaemic index as a possible trigger for acne flare-ups. (nhs.uk)

That doesn't mean one particular food automatically causes acne in everyone.

And it certainly doesn't mean everyone with spots needs to completely overhaul their diet.

If you've noticed a genuine pattern between something you eat and your skin, it's reasonable to pay attention to it. But correlation isn't automatically causation.

“But I started eating clay and then I got spots”

This is probably the most understandable reason someone might blame clay.

You try a new clay.

A few days later, there's a massive spot sitting on your face like it pays rent.

Naturally, you think:

Well, that's new.

Except there are usually several other things going on at the same time.

Have you:

• changed your skincare?

• started a new medication?

• been more stressed?

• changed your diet?

• started or stopped hormonal contraception?

• reached a different point in your menstrual cycle?

• changed your hair products?

• been sleeping differently?

The NHS lists hormonal changes, certain medicines, some cosmetic products and high-GI diets among possible acne triggers or contributing factors. (nhs.uk)

And sometimes?

You just got a spot.

Skin has a sense of humour.

What about stress?

Stress is another one that's often mentioned in conversations about acne, although it's important not to oversimplify the relationship.

If you're dealing with persistent or troublesome acne, the NHS recommends speaking to a pharmacist or GP depending on the severity, particularly where acne is moderate, severe or causing nodules, cysts or scarring. (nhs.uk)

In other words, if your face is suddenly staging a full rebellion, you don't necessarily need to conduct a forensic investigation into your clay collection.

You might just need proper medical advice.

Your skincare might be the problem

Before blaming the clay, think about what's actually touching your face.

Have you recently bought:

• a new moisturiser?

• sunscreen?

• foundation?

• facial oil?

• serum?

• hair oil?

• styling product?

The NHS notes that some cosmetic products can contribute to acne, although many modern products are formulated to avoid blocking pores. (nhs.uk)

And if you've suddenly introduced five new skincare products because TikTok promised you glass skin in seven days...

Good luck figuring out which one is responsible.

Sometimes keeping things simple is much more useful.

What about “toxins”?

This is where we're going to put the brakes on.

If someone tells you your acne is caused by “toxins coming out of your body”, be sceptical.

A spot isn't evidence that your body is having a dramatic detox, and clay shouldn't be presented as a detox treatment for acne.

More importantly, UK food safety and toxicology guidance highlights genuine concerns around geophagia, particularly the potential for earth, soil and clay to contain contaminants such as heavy metals. The exact risk varies depending on the material and where it came from. (GOV.UK)

The Committee on Toxicity specifically notes that soils and clays involved in geophagia can have highly variable mineralogical and contaminant profiles. (GOV.UK)

So if someone is promising that their clay will clear your skin from the inside out or remove mysterious “toxins” from your body...

That's a marketing claim, not something to treat as medical advice.

What about clay being high in minerals?

Another common assumption is that because clay contains minerals, those minerals must somehow be responsible for breakouts.

Not necessarily.

The UK Committee on Toxicity highlights just how variable the mineralogical and contaminant profiles of soils and clays involved in geophagia can be. (GOV.UK)

Simply knowing that a clay contains a particular mineral doesn't tell us what effect consuming that material will have on your skin, or your wider health.

And this is one reason why we don't make health claims about our products.

We're selling clay.

Not miracle cures.

What about using clay on your skin?

That's a completely separate conversation.

Clay is used in cosmetic products, but putting a cosmetic clay product on your face is not the same thing as consuming clay.

Different products have different intended uses.

A clay sold as a cosmetic ingredient isn't automatically something you should consume.

And a clay sold within the geophagia community isn't automatically a skincare product.

Always check what a product is actually intended for.

Don't confuse acne with a reaction

There's another important distinction here.

If you develop a rash, itching, swelling, hives or another unusual reaction after exposure to something, that isn't necessarily acne.

It could be irritation, an allergic reaction or another skin problem.

If something seems unusual, severe or persistent, get medical advice rather than trying to diagnose it from a Facebook group.

Why does clay get blamed so easily?

Because it's new.

If you've been doing something for years and suddenly introduce a new clay, it's natural to suspect the new thing when something changes.

But correlation doesn't automatically mean causation.

If you started exploring clay at the same time your hormones shifted, your skincare changed, your stress levels increased and your sleep went out the window...

Well.

You've got yourself quite the investigation.

So what should you actually do?

If you're getting breakouts and you're trying to work out why, look at the bigger picture.

Think about your:

Hormones: periods, pregnancy, contraception and other hormonal changes. (nhs.uk)

Skincare: new cosmetics or products that may irritate or block pores. (nhs.uk)

Medication: some medicines can contribute to acne. (nhs.uk)

Diet: the NHS identifies high-GI diets as a possible acne trigger. (nhs.uk)

Genetics: acne can run in families. (nhs.uk)

And if you can't figure it out?

That's what healthcare professionals are for.

When should you see a doctor?

If your acne is moderate or severe, painful, leaving scars or developing into nodules or cysts, the NHS recommends seeking medical advice. A GP can assess the severity and recommend appropriate treatment. (nhs.uk)

If you're also experiencing persistent pica or geophagia, mention that too.

UK toxicology guidance highlights potential exposure to contaminants from consumed earth materials, particularly because the composition of soils and clays can vary considerably. (GOV.UK)

This is particularly important during pregnancy, when the UK Committee on Toxicity has specifically considered the potential risks associated with pica and geophagia. (GOV.UK)

The takeaway

So, does eating clay automatically cause skin breakouts?

No established link says that it does.

The NHS's recognised causes and triggers for acne include blocked follicles, excess sebum, hormones, genetics, certain medicines, some cosmetics and high-GI diets. Geophagia isn't listed among them. (nhs.uk)

If your skin changed around the same time you started exploring a particular clay, that doesn't mean you're imagining the change.

Your skin really may have changed.

But before pointing the finger at the clay, look at the bigger picture.

And remember that geophagia itself isn't risk-free simply because a material is natural. UK food safety guidance highlights the potential for contaminants in consumed earth materials and the considerable variation between different soils and clays. (GOV.UK)

Sometimes there's an obvious reason.

Sometimes there isn't.

And sometimes, annoyingly, you just get a spot.

It happens.

So let's stop telling people that eating clay automatically causes acne when the reality is much more complicated.

Your face doesn't need another conspiracy theory.

Disclaimer

Earthy Crunch UK products are natural clay and chalk materials sold for sensory, hobbyist and ASMR use only. They are not food-grade certified or promoted for consumption. All personal use is at your own risk. We make no claims regarding health benefits and accept no liability for any adverse effects arising from handling or ingestion. Products are prepared in a home environment.

This article is for general educational information only and is not medical advice. If you have persistent, painful, severe or unusual skin symptoms, or concerns about pica or geophagia, please speak to your GP, pharmacist, dermatologist or another qualified healthcare professional.