Coeliac disease is often seen as a condition that mostly affects women — but that assumption is part of the problem. In Australia, thousands of men are living with undiagnosed coeliac disease, often attributing their symptoms to stress, ageing, IBS, or “just being run down.”

According to Coeliac Australia, coeliac disease affects around 1 in 70 Australians — yet many cases remain undiagnosed. Research consistently shows men are diagnosed less often and later than women.

If you’re a man dealing with fatigue, digestive issues, low iron, or unexplained health changes, this guide explains:

• Common coeliac symptoms in men
• Why men are under-diagnosed
• Effects on testosterone, fertility and bone health
• What tests to request in Australia
• When to see your GP

Why Is Coeliac Disease Often Missed or undiagnosed in Men?

 1️⃣ Men Are Less Likely to Seek Early Medical Help

Men statistically visit GPs less frequently than women. Mild or vague symptoms are often ignored until they significantly interfere with daily life.

2️⃣ Symptoms Present Differently

Men are more likely to present with “non-classic” symptoms such as:

• Fatigue
• Iron deficiency
• Low mood
• Brain fog
• Joint pain

Rather than severe diarrhoea or dramatic weight loss.

3️⃣ Digestive Issues Are Often Dismissed

Bloating or irregular bowel movements may be labelled as IBS without proper testing.

4️⃣ Lower Testing Rates

Some research suggests women are more frequently screened for coeliac disease, especially if they present with autoimmune conditions.

The result? Many men are diagnosed years after symptoms begin.

Common Coeliac Symptoms in Men

Symptoms can vary significantly. Some men have severe digestive distress. Others have almost none.

Common Symptoms in Adult Men

• Chronic fatigue
• Iron deficiency (with or without anaemia)
• Bloating and abdominal discomfort
• Persistent diarrhoea or constipation
• Brain fog
• Mouth ulcers
• Joint pain
• Weight loss
• Unexplained weight gain

Fatigue is one of the most searched symptoms among Australian men — often described as “constant exhaustion despite sleeping.”

 Male-Specific Health Concerns Linked to Coeliac Disease

This is where search interest has grown rapidly in recent years.

🧬 Low Testosterone & Hormonal Imbalance

Untreated coeliac disease can impair nutrient absorption, including zinc and vitamin D — both important for hormone regulation.

Some men report:

• Reduced libido
• Low energy
• Mood changes
• Reduced muscle mass

While coeliac disease does not directly “cause” low testosterone, untreated disease and malnutrition may contribute to hormonal imbalance.

🧪 Fertility Issues in Men

Emerging research suggests untreated coeliac disease may affect:

• Sperm quality
• Sperm motility
• Reproductive hormone balance

Nutrient deficiencies (particularly zinc, folate and selenium) may play a role.

Many men discover coeliac disease during fertility investigations.

🦴 Bone Health & Osteoporosis

Osteoporosis is often associated with women — but untreated coeliac disease significantly increases fracture risk in men.

Poor absorption of calcium and vitamin D can weaken bone density over time.

Men diagnosed later in life are particularly at risk.

What Tests Should Men Ask For in Australia?

If you suspect coeliac disease, do not start a gluten-free diet before testing.

Testing while avoiding gluten can produce false negatives.

✔ Step 1: Coeliac Serology Blood Test

Ask your GP for:

• tTG-IgA (Tissue Transglutaminase antibodies)
• Total IgA

This is the primary screening test.

If positive, you may be referred to a gastroenterologist for further investigation.

✔ Step 2: HLA Genetic Testing (DQ2/DQ8)

This test checks for genetic predisposition.

• If negative → coeliac disease is highly unlikely.
• If positive → you have the genes, but not necessarily the disease.

Genetic testing is particularly useful if:

• You’ve already gone gluten-free
• Blood tests were inconclusive
• There is family history

✔ Step 3: Endoscopy & Biopsy

If blood tests suggest coeliac disease, a small intestinal biopsy confirms diagnosis.

This remains the gold standard in adults.

When Should a Man See a GP?

You should consider testing if you have:

• Persistent fatigue
• Chronic digestive issues
• Unexplained iron deficiency
• Family history of coeliac disease
• Type 1 diabetes
• Thyroid autoimmune disease
• Unexplained infertility

Even mild but ongoing symptoms warrant investigation.

 What Happens After Diagnosis?

The only treatment is a strict lifelong gluten-free diet.

After removing gluten:

• Energy often improves within weeks
• Iron levels normalise
• Gut lining begins healing
• Hormonal balance may stabilise
• Bone health can recover (if managed early)

Regular follow-up testing is recommended to monitor recovery.

Gym, Muscle & Nutrition Concerns

 very common male-focused search is:

“Can I build muscle with coeliac disease?”

Yes — absolutely.

However, newly diagnosed men may need to:

• Correct nutrient deficiencies first
• Monitor protein supplement ingredients (many contain gluten)
• Ensure adequate calorie intake
• Work with a dietitian if needed

Once managed, athletic performance is not limited by coeliac disease.

Mental Health & Coeliac Disease in Men

Undiagnosed coeliac disease has been linked with:

• Anxiety
• Depression
• Irritability
• Brain fog

Chronic inflammation and nutrient deficiencies can affect mood.

Many men report improved mental clarity after treatment.

Why Early Diagnosis Matters

Untreated coeliac disease can increase risk of:

• Osteoporosis
• Severe nutrient deficiency
• Neurological issues
• Other autoimmune conditions

Early detection reduces long-term complications and improves quality of life.

Key Takeaways for Australian Men

• Coeliac disease is not just a women’s condition.
• Men are frequently under-diagnosed.
• Symptoms are often subtle or non-digestive.
• Fatigue and iron deficiency are major red flags.
• Do not remove gluten before testing.
• Proper diagnosis requires blood testing (and sometimes biopsy).

If you suspect something isn’t right, ask your GP directly about coeliac testing.

Final Thoughts

Coeliac disease in men is more common than many realise — but it often hides behind vague symptoms like fatigue, low mood, or hormonal changes.

The good news? Once diagnosed and managed correctly, most men regain full energy, strength and long-term health stability.

If you’re experiencing ongoing symptoms, testing is simple and widely available in Australia. Early diagnosis can prevent years of unnecessary health struggles.