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Gut Health · Katie McKersie, RHN, FDN-P · Updated

Gut Health: Digestion, Food Tolerance & Your Skin

Graphic of heartburn

Gut health describes how well your digestive system breaks down food, absorbs nutrients and moves waste. Bloating, pain and bowel changes can have different causes. A useful plan starts with the pattern of symptoms and an appropriate assessment, rather than assuming that every digestive problem is an infection or the cause of a skin condition.

What does a digestive symptom tell you?

One symptom rarely identifies one condition. Repeated abdominal pain with changes in stool may fit IBS, while burning behind the breastbone and regurgitation may fit reflux. An infection, food intolerance or another illness can also cause digestive symptoms. The NIDDK describes IBS as a disorder of communication between the gut and brain. NIDDK: IBS symptoms and causes

Write down what happens before deciding what to remove from your diet. Record the location of pain, stool changes, timing after meals, medicines and any recent travel. This makes a conversation about testing more useful than a long list of supplements tried without a diagnosis.

Choose the guide that matches your question

For pain and changing stools, read the IBS guide. For persistent reflux, start with GERD. The SIBO article explains bacterial overgrowth and breath tests. Parasites and Candida require different evaluations, and the food-sensitivity guide distinguishes intolerance, allergy and intestinal permeability. Each guide links to its clinical sources and to related Holistico articles.

The aim is to help you ask better questions. These conditions can overlap, but one label should not be used as a shortcut for diagnosing the others.

Where food and nutrition fit

Nutrition support can help turn a clinical recommendation into meals you can manage. For example, IBS care may include an individual trial of a dietary change, followed by review. A restricted diet should have a clear purpose and a plan for what happens next. NIDDK: IBS treatment

Before excluding foods, consider your current intake, cooking access, food budget and whether you have already removed several food groups. A diary should help clarify a pattern, not make every meal feel like a test you can fail.

Does gut health explain acne?

Having digestive symptoms and acne at the same time does not establish that one caused the other. The AAD notes that diet can influence acne in some people, while effective acne care can also involve skin care and medication. AAD: diet and acne

Use separate assessments for persistent digestive symptoms and persistent skin problems. You can still work on nutrition alongside those assessments. Keeping a skin and symptom diary may make both conversations more specific without promising a single gut treatment will clear your skin.

Build a useful next-step plan

Start with the problem you most want help with. Choose one guide, note the questions it raises and bring the diary to your clinician. Seek prompt medical assessment for blood in stool, unexplained weight loss, trouble swallowing or severe symptoms. Nutrition coaching can help with the practical parts of a plan once the condition and treatment needs are clear.

At Holistico, individual nutrition support is available through the 1:1 membership. Testing is discussed within the membership when it may help guide an individual plan; it is not a requirement for every reader. See the testing and membership pages for the current service details.

Frequently Asked Questions

Does bloating mean I have SIBO?

No. Bloating can occur with several digestive problems and does not establish bacterial overgrowth. The timing, associated pain and bowel pattern help a clinician decide what to investigate. If a breath test is considered, ask what it can show, how to prepare and whether its result would change your treatment.

Should I remove gluten and dairy to improve gut health?

Not automatically. A dietary change should address a specific question and remain nutritionally adequate. If celiac disease is being investigated, ask about testing before removing gluten. If you suspect a food intolerance, discuss a focused trial and review plan instead of removing several food groups at once.

Can I get nutrition support for gut and skin concerns together?

Yes. You can discuss both concerns with Holistico and work on practical nutrition habits alongside appropriate clinical care. Keep the goals separate enough to track what is improving. A change in digestive symptoms does not by itself prove that the same change will treat acne, eczema or another skin condition.

Sources

Editorial update: 13 October 2026. This article provides general education and does not make an individual diagnosis.

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