Key takeaways
- Acne is driven mainly by oil glands, hormones, blocked pores and inflammation. Food is a modifier, not the root cause.
- Small trials suggest a low glycaemic load diet can reduce acne lesions.
- Observational studies link milk, including skimmed milk, with acne. Curd and cheese show no clear link.
- The American Academy of Dermatology's 2024 guidelines did not make a diet recommendation because the evidence was judged insufficient.
- Try one change at a time for eight to twelve weeks, and keep your acne treatment going.
What do patients usually ask me?
Every week, someone asks, "Doctor, what should I stop eating?" Usually a mother has already removed fried food, chocolate, mangoes and ghee from the house. And the acne is still there.
So let me be honest about what we know. A review in the journal Cutis summed it up well: diet does not cause acne, but it may influence or aggravate it. That is very important to understand, because it changes how you use food. It is a lever, not the switch.
Is sugar linked to acne?
This is where the evidence is strongest, though the studies are small. Foods with a high glycaemic index or load raise blood sugar and insulin quickly. Higher insulin and a related hormone, IGF-1, can stimulate oil glands and skin cell growth in the pore.
The research summarised in Cutis includes: - A 2007 trial in young men aged 15 to 25 where a low glycaemic load, higher protein diet reduced acne lesions more than a usual diet over 12 weeks. - A Korean trial where a low glycaemic load diet over 10 weeks reduced lesions and inflammation. - A short trial showing a low glycaemic diet reduced IGF-1 in adults with acne.
These are encouraging but limited. I would call this "reasonable to try", not "proven for everyone".
Does milk cause pimples?
The link with milk is weaker and comes mostly from observational studies, which show association, not proof. The Cutis review cites a 2019 meta-analysis that found a positive association between milk, including skimmed milk, and acne, but no significant association for yoghurt or cheese.
In Indian terms, that means: - Large amounts of milk, in tea and coffee, milkshakes and protein shakes, are worth noticing. - Curd, dahi, chaas and paneer do not show the same link in that research, and they are good protein sources.
If your acne is stubborn and you drink a lot of milk, a trial of reducing it for two to three months is reasonable. If you reduce dairy, make sure you get calcium and protein from other foods.
What about chocolate, oily food and spicy food?
For decades, people were told to avoid chocolate, oily food and fizzy drinks. A Dermatology Times report from an AAD meeting notes that this old advice was never backed by strong evidence, and that current guidelines do not recommend specific diet changes for acne because large, repeatable trials are lacking.
Here is how I explain it:
| Food | What the evidence suggests | My practical advice |
|---|---|---|
| Sugary drinks, sweets, mithai | Possible worsening via high glycaemic load | Cut back, especially daily habits |
| White rice, maida, biscuits, bakery items | Possible worsening via high glycaemic load | Swap some for millets, whole wheat, dal, chana |
| Milk in large amounts | Weaker, observational link | Notice your intake; try reducing if acne is stubborn |
| Curd, chaas, paneer | No clear link | Keep them |
| Chocolate | Not well supported as a cause | Moderation, mainly because of sugar |
| Oily, fried food | Not proven to cause acne directly | Reduce for general health; oil on the face matters more than oil in the diet |
| Spicy food | No good evidence for acne | Can trigger flushing in rosacea, a different condition |
What about whey protein and supplements?
Whey is a concentrated milk protein, and many young men notice breakouts when they start it. The strength of evidence varies, and I have not seen enough to blame it for everyone. If your acne started or worsened with a new protein powder, pausing it for eight weeks is a simple experiment. Plant proteins, eggs, dal, paneer and soya can cover your needs meanwhile.
The AAD 2024 guidelines also found insufficient evidence for vitamins and plant-based remedies for acne. So I would not spend money on "acne supplements" hoping for a cure.
How do I try a diet change sensibly?
Basically, run a fair experiment: 1. Change one thing at a time. If you cut sugar, milk and whey all at once, you will not know which mattered. 2. Give it eight to twelve weeks. Acne takes weeks to respond to anything. 3. Keep your treatment going. Diet works alongside benzoyl peroxide, retinoids and other treatments your doctor recommends. The 2024 guidelines strongly recommend these. It does not replace them. 4. Take photos in the same light every two weeks. Memory is unreliable. 5. Do not starve or cut whole food groups for months without advice, especially if you are a teenager.
A lower glycaemic, higher protein way of eating is also good for weight, energy and insulin. In some women with acne and PCOS, it may help with more than just the skin. See my article on hormonal acne in women.
How we approach this at Dr Tvacha
Acne treatment is part of our skin work at the Thane, Andheri, Bandra and Dahisar centres. Under the Second Layer Skin Plan, I treat the acne with medicines and, where useful, peels, and I give you one or two food changes that fit your life, not a long list of forbidden foods. Any treatment is quoted in writing. If you are an adult with persistent acne, my article on why adults still get acne is a good next read.
Frequently asked questions
Should I stop drinking milk if I have acne?
Not automatically. The link between milk and acne is weaker and based mostly on observational studies. If your acne is stubborn and you drink a lot of milk, reducing it for two to three months is a reasonable experiment. Curd, chaas and paneer do not show the same association and are useful protein sources, so you can usually keep them.
Does chocolate cause pimples?
There is no strong evidence that chocolate itself causes acne. The old advice to avoid it was never well supported. Many chocolates are high in sugar and milk, which may matter more than the cocoa. Eating chocolate occasionally is unlikely to be the reason for your acne. Daily sweets and sugary drinks deserve more attention.
Does oily or fried food cause acne?
Not directly, as far as the evidence shows. Oil on your skin, from heavy creams, hair oil or cooking fumes, matters more than oil in your food. That said, fried snacks are often made with refined flour and eaten with sugary drinks, so reducing them helps general health and possibly the high glycaemic load part.
Can a low-sugar diet cure acne?
No diet cures acne. Small trials suggest a low glycaemic load diet can reduce acne lesions in some people, which makes it worth trying alongside treatment. But acne is driven mainly by hormones, oil glands and blocked pores, so most people still need proper treatment such as benzoyl peroxide or retinoids prescribed after assessment.
Is whey protein bad for acne?
Some people notice breakouts after starting whey, but the evidence is not strong enough to say it affects everyone. If your acne began or worsened with a protein powder, pause it for about eight weeks and see. Meet your protein needs from eggs, dal, paneer, curd, soya or plant protein in the meantime.
Written by
Dr Amit KarkhanisAesthetic Physician · MBBS, Dip. Dermatology (UK) · Reg. No. 2001/02/1124Founder of Dr Tvacha, practising in Thane since 2005. Leads the weight loss and hair programmes.
Sources
- Update on Diet and Acne (Cutis, 2019)
- Diet-acne association becomes clearer (Dermatology Times)
- American Academy of Dermatology issues updated guidelines for the management of acne (2024)
- Acne (NHS)
This article is for general education and does not replace a consultation. Medicines and treatments are prescribed only after a doctor's assessment. Last reviewed 25 October 2026.