Diet and acne may be linked, but changing what you eat is unlikely to be a universal cure. Research suggests that high-glycemic diets may worsen acne in some people, while studies have also reported an association between cow’s milk and acne. However, the evidence is not strong enough to support one specific “acne diet.” Dermatologists recommend avoiding unnecessary food restrictions and using evidence-based treatment when needed.
Can diet alone clear acne?
From cutting out sugar and dairy to following increasingly restrictive “clean eating” plans, social media offers countless strategies for supposedly achieving clear skin.
But acne is not simply the result of eating the wrong foods.
It is a complex skin condition involving excess oil production, clogged pores, inflammation, hormones and genetic factors. That means eliminating a particular food may help some people, while making little or no difference for others.
Current clinical guidance does not support a single diet as a treatment for acne. The UK’s National Institute for Health and Care Excellence has concluded that, while some studies suggest a low-glycemic diet could be beneficial, the available evidence is not strong enough to recommend a specific dietary intervention for acne.
High-glycemic foods may play a role
One of the most widely studied areas in the relationship between diet and acne is glycemic load.
Foods that can cause a rapid rise in blood sugar include certain refined carbohydrates and sugary products, such as white bread, sweetened drinks, pastries and some breakfast cereals.
Some research has suggested that a lower-glycemic diet may reduce acne lesions in certain people. One possible explanation involves changes in insulin and related hormonal pathways that may influence oil production and inflammation.
However, the results across studies have not been entirely consistent.
That means it would be misleading to say that avoiding sugar will automatically cure acne. For some people, reducing highly refined carbohydrates may be worth considering as part of an overall balanced diet, but it should not replace appropriate medical treatment.
Does dairy cause acne?
Dairy is another major source of debate.
Some observational studies have found an association between cow’s milk consumption and acne. However, an association does not prove that milk directly causes acne, and researchers have not established a clear cause-and-effect relationship.
Evidence regarding other dairy products is also less clear. There is not strong evidence showing that yogurt or cheese consistently worsen acne.
As a result, dermatologists generally do not recommend that everyone eliminate all dairy products solely because they have acne.
If someone repeatedly notices a possible connection between a particular food and worsening symptoms, discussing it with a healthcare professional or registered dietitian may be more appropriate than adopting a broad and restrictive elimination diet.
Why restrictive “acne diets” can be a problem
The growing wellness industry has helped popularize increasingly strict dietary rules, often presented as a solution for skin problems.
But eliminating multiple food groups without a medical reason can increase the risk of nutritional deficiencies and may contribute to unhealthy eating behaviors.
NICE has also highlighted concerns about restrictive dietary approaches, particularly when young people are encouraged to closely monitor or avoid foods in an attempt to control acne.
A balanced diet can support overall health, but it should not become another source of stress or an unproven substitute for medical care.
What dermatologists recommend
Current evidence supports a balanced approach to diet and acne.
For most people, this may include:
- Eating a varied and nutritionally balanced diet.
- Considering whether frequent consumption of high-glycemic foods affects symptoms.
- Paying attention to repeated individual triggers without assuming that every breakout is caused by food.
- Avoiding unnecessary or highly restrictive elimination diets.
- Using evidence-based acne treatments when appropriate.
Modern acne guidelines support treatments including benzoyl peroxide, topical retinoids, salicylic acid and azelaic acid. Oral or other prescription treatments may also be appropriate depending on the severity and type of acne.
Skincare still matters
Diet is only one potential part of acne management.
A gentle skincare routine can also help reduce irritation and support treatment. Acne-prone skin is generally best cared for with gentle cleansing, while heavy or pore-clogging products may worsen symptoms for some people.
Popping or squeezing spots can increase inflammation and may raise the risk of scarring.
Severe, painful or persistent acne should be assessed by a healthcare professional, particularly if it is causing scarring or significant emotional distress.
Why It Matters
Claims about diet and acne can encourage people to adopt unnecessary and restrictive eating patterns. While certain dietary habits may influence acne in some individuals, the scientific evidence does not support a universal acne diet. A more balanced approach—combining healthy eating habits, appropriate skincare and evidence-based medical treatment when necessary—can help prevent misinformation from replacing effective care.
Frequently Asked Questions
Can eating sugar cause acne?
High-glycemic diets have been associated with acne in some studies, but eating sugar does not automatically cause acne in everyone. The overall diet and individual response appear to be more important than a single food.
Should I stop drinking milk if I have acne?
Some studies have reported an association between cow’s milk and acne, but this does not prove that milk directly causes breakouts. There is also less evidence linking yogurt and cheese to acne, so eliminating all dairy products is not routinely recommended.
Does gluten cause acne?
There is no strong evidence that gluten is a direct cause of acne in the general population. Unless there is another medical reason to avoid gluten, eliminating it solely as an acne treatment is not supported by current evidence.
When should I see a dermatologist about acne?
Medical advice may be appropriate if acne is painful, severe, causing scars, worsening or not improving with appropriate over-the-counter treatment. A dermatologist can assess whether prescription treatment or another approach is needed.
Sources: American Academy of Dermatology, NICE, Journal of the American Academy of Dermatology
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