Dante Carrillo
Acne is a common skin condition that affects up to 50 million people in the United States each year. While the causes of acne are multifactorial, including hormonal changes, certain medications, and hair and skincare products, there is growing evidence that diet may also play a role in acne development and treatment. Recent studies suggest that a low-glycemic diet, rich in omega-3 fatty acids, fibre, and plants, and low in dairy products, may help to reduce acne breakouts. However, the link between diet and acne is complex, and more research is needed to establish a definitive connection and guide treatment recommendations.
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What You'll Learn
Low-glycemic diets reduce acne
While there is no cure for acne, certain dietary changes may help reduce its symptoms. One of the most popular diets for acne management is the low-glycemic diet. This diet is based on the idea that foods with a high glycemic index (GI) can trigger acne breakouts by causing spikes in blood sugar levels, leading to increased inflammation throughout the body and excess sebum production.
The glycemic index is a measure of how much and how quickly a particular food raises your blood sugar levels. Foods with a high GI, such as candy bars, cause sharp and sudden spikes in blood sugar. On the other hand, a low-glycemic diet focuses on foods with a lower GI, like lentils, which lead to a slower and steadier rise in blood sugar. Other examples of low-GI foods include most fresh vegetables, some fresh fruits, beans, and steel-cut oats, and dark leafy greens.
Multiple studies have found a correlation between low-glycemic diets and reduced acne. In one study, male patients with acne were divided into two groups, with one group following a low-glycemic diet. After 12 weeks, the group on the low-glycemic diet showed significant improvement in their acne, with fewer red bumps, pustules, whiteheads, and blackheads. Skin biopsies from this group also showed less inflammation and smaller sebaceous (oil) glands.
Another study compared the diets of acne patients in Australia, Korea, and Turkey. In Australia, 43 males with acne followed either their normal diet or a low-glycemic diet for 12 weeks. At the end of the study, those on the low-glycemic diet had significantly less acne. Similar results were found in Korea, where acne patients followed a low-glycemic diet for 10 weeks and experienced a reduction in acne severity.
While the link between diet and acne is not universally accepted, and other factors such as genetics and hormones also play a role, a low-glycemic diet is a safe and potentially effective way to manage acne, as it can reduce inflammation and regulate sebum production without causing harm.
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High-glycemic diets worsen acne
Acne is a common skin condition that affects as many as 50 million people in the United States each year. While there is currently no cure for acne, treatments include prescription medications, over-the-counter gels and creams, and lifestyle changes.
There is a growing body of evidence that suggests a person's diet may affect their acne. For example, a study of 24,000 adults found a correlation between the chances of having acne and the consumption of a diet high in fat and sugar. However, it is important to note that this study could only detect an association, not causation.
The Western diet is typically high-glycemic, often causing insulin resistance. This can lead to a change in sebum production, resulting in inflammation and acne. High-glycemic foods include white bread, corn flakes, puffed rice, potato chips, white potatoes or fries, doughnuts or pastries, sugary drinks, and white rice. These foods can cause blood sugar spikes, which in turn cause inflammation throughout the body and increase sebum production. Sebum is an oily substance in the skin that can lead to clogged pores and acne.
In contrast, populations that follow a low-glycemic diet have been found to have a reduced risk of acne. For example, the Kitavan Islanders and the Aché hunter-gatherers of Paraguay, who eat a low-glycemic diet consisting of fresh fruits, vegetables, and lean proteins, do not suffer from acne. Clinical trials have also shown that low-GI diets decrease fasting IGF-1 concentrations, while high-GI diets are associated with elevated IGF-1 levels. IGF-1, or insulin-like growth factor 1, may increase sebum production and worsen acne symptoms.
Switching to a low-glycemic diet may therefore help to reduce acne breakouts. This can be achieved by reducing high-glycemic foods and balancing blood sugar spikes with carbohydrates that are higher in fiber or by eating them with a meal that includes protein. A low-glycemic diet typically includes most fresh vegetables, some fresh fruits, beans, and steel-cut oats. Some people may see an improvement in their acne within as little as three months of starting a low-glycemic diet, but it is important to note that dietary changes alone will not clear up acne breakouts, and a regular treatment routine should also be followed.
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Dairy products and acne
Acne is a common skin condition that affects as many as 50 million people in the United States each year. While there is currently no cure for acne, there are effective treatments available, including prescription medications and over-the-counter gels and creams. Lifestyle changes, including dietary changes, may also help reduce symptoms and prevent breakouts.
Several studies have examined the link between dairy intake and acne. A systematic review and meta-analysis of 78,529 children, adolescents, and young adults found an association between acne and the intake of any dairy, including milk, yogurt, and cheese. The odds of acne were highest for low-fat/skim milk, followed by whole milk, yogurt, cheese, and then full-fat dairy. Another study of more than 24,000 adults found that those with current acne were 76% more likely to report drinking at least five glasses of milk the previous day compared to those with no history of acne.
There are several theories as to why dairy may trigger acne. One theory suggests that the hormones present in milk, including artificial hormones given to dairy cows and insulin-like growth factor 1 (IGF-1), may disrupt the body's endocrine system and trigger breakouts. Another theory proposes that the combination of dairy and the high levels of refined foods and processed sugars in the Western diet may disrupt insulin levels, making the skin more prone to acne. Additionally, the sugar content of milk may contribute to inflammation, especially when consumed in large quantities, which can further trigger acne.
While the evidence suggests a link between dairy and acne, it is important to note that dietary changes alone will not clear up acne breakouts. Other factors, such as genetics, allergies, and stress, can also contribute to acne. If you suspect that dairy is causing or irritating your acne, it is recommended to consult a skincare professional before making any dietary changes, as eliminating dairy may have health consequences, such as reduced calcium intake, and there may be other factors contributing to your acne.
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Omega-3 fatty acids and acne
Acne is a common skin condition that can cause oily skin and several types of lesions, including pimples. It is often thought to be caused by a combination of factors, including excess oil production, clogged skin pores, bacteria, and inflammation. While there is no consensus on the effectiveness of dietary changes in treating acne, some studies suggest a potential link between diet and acne.
Omega-3 fatty acids, particularly eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), have been the subject of discussion in relation to acne treatment due to their anti-inflammatory properties. Acne is considered an inflammatory skin condition, and omega-3 fatty acids may help to target this inflammation.
Some studies have found that individuals with acne had lower blood levels of EPA and higher levels of inflammatory markers compared to those without acne. Additionally, a small study showed that taking 2,000 mg of EPA and DHA supplements daily for 10 weeks significantly reduced both inflammatory and non-inflammatory acne lesions. However, another study found no significant changes in acne severity after participants with inflammatory acne took a daily fish oil supplement for 12 weeks.
It is important to note that the impact of omega-3 fatty acids on acne may vary from person to person. While some studies suggest that omega-3 supplements can reduce acne severity, others show mixed results. Additionally, taking omega-3 supplements may have unwanted side effects, and more research is needed to fully understand their effectiveness in treating acne.
To increase your omega-3 intake, it is recommended to consume more fish, such as salmon, mackerel, herring, and sardines. Plant-based sources of omega-3 fatty acids include flaxseeds, chia seeds, and walnuts. It is worth noting that most studies on omega-3s and acne have focused on EPA and DHA, which are primarily found in fish and fish oil.
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Zinc and acne
While there is no consensus that changing your diet can help with acne, some studies have found a correlation between the chances of having acne and the consumption of a diet high in fat and sugar.
Zinc is an "essential trace element" that is needed in minimal amounts for overall health. It is present in all organs, tissues, fluids, and secretions in the body, with 83% present in skeletal muscle and bone. Zinc is sometimes referred to as the "beauty mineral" because it is beneficial for the skin, nails, and hair. People with zinc deficiencies tend to have more eczema flare-ups, rashes, and dry, scaly skin.
Zinc's anti-inflammatory properties help the body reduce swelling and redness in acne patients. Studies show that patients who were treated with zinc noticed a decrease in active breakouts compared to those who were not. Topical zinc may be enough to help clear mild acne, including blackheads, whiteheads, papules, and pustules. It may take up to three months of topical application before visible results are seen.
Zinc can also help with acne externally. Sunscreens containing zinc oxide can help repair the skin while protecting against harmful ultraviolet rays. However, it is important to note that using multiple acne-fighting products at once can increase your risk of side effects.
If you are considering adding zinc supplements to your routine, it is important to talk to your doctor first, as zinc supplements can interact with some prescription medications, including antibiotics and those used for autoimmune diseases.
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Frequently asked questions
There is no conclusive evidence that diet changes can clear acne. However, some studies suggest that dietary factors can affect acne.
Foods that cause your blood sugar to rise quickly, such as white bread and fries, may worsen acne. It is recommended to avoid dairy products and foods with high GIs and GLs.
An anti-acne diet should include foods rich in omega-3 fatty acids, fiber, and plants. The Mediterranean diet is an excellent way to incorporate these changes.
Yes, some supplements that can help with acne include probiotics, leucine, oral vitamin and mineral supplements, and zinc.
No, dietary changes alone will not clear acne. It is important to follow a regular treatment routine, such as acne-friendly skincare and acne medication, in addition to making dietary changes.
