Fast Answer
Diet may influence acne for some people, but there isn't one specific food that causes acne in everyone. Research suggests that high-glycaemic diets may be associated with more acne in some people, while some studies have found a possible association between cow's milk and acne. However, the evidence isn't strong enough to say that everyone with acne should avoid particular foods. Acne has multiple contributing factors, so diet should be considered alongside hormones, genetics, oil production, inflammation and skincare.
Can Diet Affect Acne?
If you've ever searched for "foods that cause acne", you'll know how confusing the advice can be.
One website says chocolate causes spots.
Another says dairy is the problem.
Someone else recommends cutting out sugar completely.
And then there's the person who swears that drinking more water cleared their skin.
So, what does the evidence actually say?
The answer is more complicated than "eat this and your acne will disappear."
There is some evidence that certain dietary patterns may influence acne, particularly diets high in foods that cause rapid rises in blood sugar. Some research has also found an association between cow's milk consumption and acne. But more research is needed, and diet is only one potential factor among many.
You don't need to blame yourself for your acne, or completely overhaul your diet, to start looking after your skin.
Does Sugar Cause Acne?
This is one of the most common questions around acne and diet.
The answer isn't simply yes.
Research has looked at the relationship between acne and high-glycaemic foods, foods that cause blood glucose levels to rise relatively quickly.
Examples can include:
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sugary drinks
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sweets
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pastries
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white bread
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some breakfast cereals
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white rice
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chips and fries
The American Academy of Dermatology reports that several small studies have found that low-glycaemic diets may be associated with fewer acne breakouts. However, other studies haven't found the same connection, meaning more research is needed.
So rather than saying:
"Sugar causes acne."
it's more accurate to say:
A diet high in rapidly absorbed carbohydrates may contribute to acne in some people.
That's an important difference.
What Is a Low-Glycaemic Diet?
The glycaemic index (GI) is a way of classifying carbohydrate-containing foods based on how quickly they raise blood glucose.
Lower-glycaemic foods generally include foods such as:
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most vegetables
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beans and pulses
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some fruits
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minimally processed whole grains
The AAD notes that some studies have found fewer acne lesions among people following lower-glycaemic diets. However, the evidence isn't conclusive enough to recommend a specific diet as an acne treatment for everyone.
You also don't need to interpret this as:
"Never eat anything high-GI again."
A balanced diet is much more realistic than an unnecessarily restrictive one.
What About Dairy and Acne?
Dairy is another area that has received considerable attention.
Some studies have found an association between cow's milk consumption and acne, including whole, low-fat and skimmed milk.
However, this doesn't mean:
"Milk causes acne."
The relationship isn't fully understood, and researchers don't yet know exactly why an association may exist.
Importantly, the AAD notes that studies haven't found evidence that yoghurt or cheese increase acne breakouts in the same way that some studies have associated cow's milk with acne.
So there's no reason to assume that every dairy product needs to be removed from your diet.
Does Chocolate Cause Acne?
You've probably heard this one since you were a teenager:
"Don't eat chocolate or you'll get spots."
But it's not that simple.
There isn't good evidence to say that simply eating chocolate automatically causes acne.
The bigger question may be what else is in the food and what your overall dietary pattern looks like.
For example, some chocolate products are high in sugar and may contribute to a high-glycaemic dietary pattern.
That doesn't mean you need to give up chocolate forever.
One food isn't going to determine whether you have acne.
Can Greasy Food Cause Acne?
Another common myth is that eating greasy or fatty food directly makes your skin greasy.
The relationship isn't that straightforward.
Eating a greasy meal doesn't mean the oil from that food travels directly to your skin and creates a spot.
Your sebaceous glands produce sebum as part of your skin's normal biology.
Acne develops through a combination of factors including excess sebum, changes within hair follicles, inflammation and other processes.
So don't feel guilty because you had a takeaway.
Your acne is not a punishment for eating the wrong food.
What About Water?
Drinking enough water is important for your overall health, but there isn't good evidence that simply drinking more water will cure acne.
Hydration is still relevant to your skin's overall condition, but it's not an acne treatment.
If someone tells you:
"Drink three litres of water and your acne will disappear."
be sceptical.
Healthy habits can support your overall wellbeing without being a cure for a specific skin condition.
Should You Cut Out Certain Foods If You Have Acne?
Not necessarily.
If you notice that your skin consistently changes after eating a particular food, you can pay attention to that pattern.
The American Academy of Dermatology suggests asking yourself whether a particular food or drink seems to worsen your acne and whether your skin changes when you don't consume it.
But there's an important distinction between:
"I've noticed a possible pattern."
and
"This food definitely causes acne."
If you're considering removing major food groups from your diet, particularly for an extended period, speak with a GP or registered dietitian first.
A restrictive diet isn't automatically a healthier diet.
How to Track Whether Food Is Affecting Your Acne
If you genuinely think your diet may be influencing your breakouts, try looking for patterns rather than making lots of changes at once.
For example, keep a simple record of:
📅 What you ate
Note anything you think may be relevant.
🧴 Your skincare routine
Have you introduced a new product?
😴 Your sleep
Has your sleep changed?
😰 Your stress levels
Are you going through a particularly stressful period?
🩸 Your menstrual cycle
If relevant to you, does your acne follow a recurring pattern?
🔴 Your skin
Where are your breakouts appearing and how severe are they?
This can help you see the bigger picture.
It also prevents you from automatically blaming food when another factor may have changed at the same time.
Remember: Acne Has More Than One Cause
This is probably the most important point in this article.
Diet is only one potential piece of the puzzle.
Acne can also be influenced by:
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hormones
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genetics
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sebum production
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blocked hair follicles
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inflammation
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medications
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stress
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skincare habits
That's why cutting out one food doesn't necessarily solve the problem.
For a complete explanation of the different factors involved, read:
What Causes Acne? Understanding the Real Reasons Behind Breakouts
Can Stress and Diet Work Together?
Absolutely.
Life isn't divided into neat categories.
During a stressful period, your eating habits might change.
You might:
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skip meals
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eat at different times
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rely more heavily on convenience foods
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sleep less
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drink more caffeine
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change your skincare routine
So if your acne suddenly worsens, it can be difficult to know which factor is responsible.
This is why it's better to look at patterns rather than blame.
We've also explored the relationship between stress and acne in:
Can Stress Cause Acne? Understanding Stress Breakouts
Can Hormones and Diet Work Together?
Hormones are another major factor in acne.
For some people, hormonal fluctuations can make the skin more prone to breakouts.
Diet may also influence certain processes involved in acne.
But these factors don't operate independently.
Your skin is responding to your overall environment and biology.
If you notice that breakouts consistently occur around your menstrual cycle, for example, hormones may be a more relevant factor than trying to identify one particular food.
Read:
Can Hormones Cause Acne? Understanding Hormonal Breakouts
What About Skincare?
Even if diet plays a role in your acne, skincare still matters.
A balanced approach can include:
Gentle cleansing
Appropriate moisturising
Sun protection
Evidence-based acne treatments where appropriate
Consistency
The NHS recommends using a mild cleanser and lukewarm water, avoiding excessive washing and choosing non-comedogenic skincare products where appropriate.
If you're unsure how to put together a routine, read:
How to Build an Effective Acne Skincare Routine
Where Does Bragan Skincare Fit?
At Bragan, we don't believe in telling people that one product, or one food, is going to magically clear their acne.
Our approach is about supportive skincare that can form part of a consistent routine.
Bragan Cleanser
Our Cleanser for Sensitive & Acne Prone Skin provides a gentle cleansing step for skin that needs a simple routine.
Snail Mucin Face Serum
Our 98% Snail Mucin Face Serum provides a lightweight hydrating step.
Atopic Cream
For skin that feels particularly dry or sensitive, our Atopic Cream can provide a richer moisturising step.
These products aren't acne treatments and aren't intended to counteract the effects of particular foods.
They're simply options for caring for your skin while you take a broader approach to managing acne.
Should You Change Your Diet to Treat Acne?
There's currently not enough evidence to recommend one universal acne diet.
Some people may notice that particular foods appear to influence their skin, while others won't see any relationship.
Rather than immediately cutting out:
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dairy
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gluten
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sugar
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chocolate
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carbohydrates
look at your overall diet first.
Aim for balanced, varied nutrition and pay attention to your own patterns.
And if you're considering significant dietary changes, get appropriate nutritional advice.
Your skin doesn't need a perfect diet.
When Should You Speak to a Professional?
Diet shouldn't become your only strategy for managing acne.
Speak to a pharmacist, GP or dermatologist if:
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your acne is persistent
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your spots are painful or deep
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you're developing scarring
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your acne is affecting your mental wellbeing
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your breakouts are getting worse
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you're unsure what is causing your skin changes
The NHS advises people with moderate or severe acne, or nodules or cysts, to speak to a GP because appropriate treatment can help reduce the risk of scarring.
The Bottom Line: Don't Blame Your Plate
So, can diet affect acne?
Possibly.
There is some evidence linking high-glycaemic dietary patterns with acne and some evidence suggesting cow's milk may be associated with breakouts in certain people. But the research isn't definitive, and diet is only one factor among many.
What we don't want you to take away from this article is:
"My acne is my fault because I ate the wrong food."
It isn't.
Acne is a complex skin condition.
Instead of obsessing over individual foods, look at your overall habits and patterns.
Eat a balanced diet.
Look after your skin.
Keep your routine consistent.
And if your acne is persistent or severe, seek professional advice.
Your skin doesn't need perfection, it needs the right approach for you.
Frequently Asked Questions
What foods cause acne?
There isn't one food that causes acne in everyone. Research suggests that high-glycaemic dietary patterns may be associated with acne in some people, while some studies have found an association between cow's milk and acne.
Does sugar cause acne?
A diet high in high-glycaemic foods may contribute to acne for some people, but it's inaccurate to say that eating sugar automatically causes acne. More research is needed.
Does dairy cause acne?
Some studies have found an association between cow's milk and acne. However, the evidence doesn't mean that everyone with acne needs to avoid dairy, and studies haven't found the same association with yoghurt or cheese.
Does chocolate cause acne?
There isn't good evidence that chocolate itself automatically causes acne. Overall dietary patterns and the ingredients in particular chocolate products may be more relevant.
Can drinking more water clear acne?
Water is important for general health, but drinking more water isn't an established treatment for acne.
Should I stop eating dairy if I have acne?
Not necessarily. If you believe dairy may be affecting your skin, keep track of your own pattern and discuss significant dietary changes with a healthcare professional or dietitian.
Can a healthy diet cure acne?
A balanced diet can support general health, but diet alone shouldn't be considered a cure for acne. Effective acne management may also involve skincare and medical treatment.
