Rosacea and Gut Health: What the Research Shows

Rosacea and Gut Health: What the Research Shows

If you have spent years trying creams, cutting out triggers and wondering why your cheeks still go the colour of a ripe tomato, this post might be for you.

Rosacea is one of the most frustrating skin conditions I see in clinic. The redness, the flushing, the bumps, the burning and stinging, and the sense that your face has become a mood ring you never asked for. It tends to flare at the worst possible moments, like during a work presentation, a first date, or a photo you were quite looking forward to.

Most of the advice you will have been given has focused on the skin itself. Gentle cleansers, sunscreen, avoiding triggers, and sometimes creams or antibiotics. Those things can help, and I am not here to knock them. But I want to tell you about the piece that so often gets missed, because the research keeps pointing back to the gut.

First, what is rosacea?

Rosacea is a long-term inflammatory skin condition that causes redness, flushing, visible small blood vessels and, for some people, pimple-like bumps and a thickening of the skin. It usually appears on the central face, including the cheeks, nose, forehead and chin. Some people also get dry, gritty or irritated eyes.

Rosacea is not simply poor skin hygiene, and it is not something you did wrong. It is a condition driven by inflammation and by how your blood vessels and immune system respond to certain triggers. It also has several possible drivers, which is exactly why one cream rarely solves it. It is worth having your skin properly diagnosed first, particularly if you have any eye symptoms, and then looking at what else is going on underneath.

The gut skin axis: why your face reflects your gut

Your gut and your skin are in constant communication. Researchers call this the gut skin axis. Your gut bacteria influence inflammation, your immune system and the integrity of your gut lining, and all of these show up on your skin. When the gut is out of balance, the skin often tells on it first.

In a way, your face is the gut's public notice board. Here is what the research shows about rosacea in particular. It is still a developing area, and many studies are small, so I will not overpromise. But the patterns are consistent enough that they are hard to ignore.

SIBO. Studies have found that people with rosacea are much more likely to have small intestinal bacterial overgrowth (SIBO), where too many bacteria live in the small intestine. In some small studies, treating SIBO has led to a clear improvement in rosacea symptoms. If bloating, gas or irregular bowels are part of your picture, why am I so bloated and is SIBO causing my anxiety explain SIBO in more detail.

Other gut conditions. Large population studies have found higher rates of rosacea in people with coeliac disease, Crohn's disease, ulcerative colitis and irritable bowel syndrome. That does not mean one causes the other, but it tells us the gut and the skin are closely connected.

Helicobacter pylori (H. pylori). This stomach bacteria has been linked with rosacea in several studies, although the findings are mixed. Some people improve when it is treated and others do not, which is one more reason why a tailored approach matters.

Gut bacteria balance. Differences in gut bacteria have been seen in people with rosacea, and it is thought that an imbalance can fuel inflammation throughout the body.

Intestinal permeability. When the gut lining is irritated, it can let bacterial particles into the bloodstream, triggering inflammation that can show up in the skin.

Why digestion matters higher up too

Low stomach acid is a commonly missed driver. When acid is low, food is not broken down well, bacteria can overgrow further down, and the gut gets irritated. This is one of the first things I look at, and you can read more in low stomach acid: why your heartburn might not be what you think.

It is not only the gut

I would be doing you a disservice if I said gut health was the whole story. Rosacea is multifactorial, and these are the other pieces I look at in clinic.

Hormones. Flushing and redness can be worse around your period, and in perimenopause, when hormone swings can make your blood vessels and skin more reactive. Oestrogen needs to be cleared well, which brings us back to the gut and liver. Oestrogen dominance: what it is and what drives it and perimenopause is not just hot flushes will help here.

Histamine. If your skin flares with certain foods, wine, heat or stress, histamine may be playing a part. Could histamine be behind your headaches, skin reactions and hormonal symptoms explains how to spot it.

Stress. Stress is one of the most common flare triggers, and it affects your gut as well as your skin.

Antibiotics. Many people with rosacea have had repeated courses of antibiotics, which can help the skin in the short term but can disrupt gut bacteria. If this sounds like you, what happens to your gut after antibiotics is worth a read.

Nutrient levels. Zinc, omega 3 fats and other nutrients support skin and calm inflammation, and they are often lower when the gut is not absorbing well.

Common triggers. Heat, sun, spicy food, alcohol, hot drinks, intense exercise and harsh skincare can all set it off. Keeping a simple diary is often more helpful than a long list of foods to avoid.

What a natural approach to rosacea looks like

Here is the honest answer. There is no single supplement or special diet that fixes rosacea. A good naturopathic approach looks for the reasons your skin is reactive and treats those. Depending on what we find, this might include:

• Investigating the gut. This might include testing for SIBO and H. pylori, and looking at digestion, stomach acid and bowel function, along with your history and symptoms. Our functional testing page explains the options.

• Calming inflammation with food. A diet rich in colourful plants, omega 3 fats and fibre, with the foods that trigger you identified rather than guessed.

• Supporting the gut lining and bacteria. Done in the right order, because the same probiotic does not suit everyone. Why probiotics are not working for you explains why.

• Supporting hormone balance and oestrogen clearance. Particularly if your flares follow your cycle.

• Looking after your nervous system. Practical tools for stress, sleep and daily rhythms.

• Gentle skincare. Fewer products, gentler ingredients and daily sun protection.

For the bigger picture on how we approach skin, you can read more on our skin health page, and the principles in understanding acne: a naturopathic perspective apply to rosacea too. You can also read about our gut health approach.

What to expect

Skin takes time. Because skin cells turn over slowly and the gut needs time to settle, I usually ask people to give a plan three months or more before judging how well it is working. Some people see improvements sooner, particularly with flushing and digestion. The aim is not just to cover redness, but to reduce how reactive your skin is in the first place.

You do not have to just put up with it

If you have been treating your rosacea from the outside for years and you are ready to look at what is happening on the inside, we can work together to figure out what is driving it for you. A tailored plan will always work better than guessing.

Book a session here, in person at our Spotswood clinic or by telehealth across Australia, and let's give your skin, and your confidence the support they deserve.

Frequently asked questions

Is rosacea related to gut health? Research suggests there are links. Studies have found higher rates of SIBO and associations with conditions such as coeliac disease, IBS and inflammatory bowel disease in people with rosacea. Not everyone with rosacea has a gut issue, but it is a very common and often overlooked piece.

Can SIBO cause rosacea? SIBO is found more often in people with rosacea, and in some small studies, treating it improved symptoms. It is not the cause for everyone, which is why testing and a proper history matter.

What is the best natural treatment for rosacea? There is no single best option. The most effective approach looks at your gut, digestion, hormones, stress, nutrient levels and triggers, and treats what is relevant to you.

What foods trigger rosacea? Common triggers include spicy food, hot drinks, alcohol and, for some people, high histamine foods. Triggers are very individual, so tracking your own flares is more helpful than avoiding everything.

How long does it take to improve rosacea naturally? Skin changes slowly. Most people need around three months of consistent support, and some see improvements in flushing and digestion earlier.

Should I still see someone about my skin? Yes, particularly if you have eye symptoms, thickened skin or bumps that are not settling. Naturopathic care works well alongside your usual skin treatment.