Can coeliac disease cause folate deficiency?

Folate helps the body make healthy blood cells and supports normal cell growth. In coeliac disease, an immune reaction to gluten damages the lining of the small intestine. This can reduce absorption of folate and other nutrients, even when the diet appears varied. Deficiency may contribute to tiredness, weakness, a sore tongue, mouth ulcers, pale skin, or breathlessness from anaemia.

Symptoms are not enough to identify folate deficiency, and similar signs can occur with iron or vitamin B12 deficiency. Blood tests can check the blood count and nutrient levels while your clinician assesses the underlying bowel condition.

Arrange an appointment if you have ongoing digestive symptoms, unexplained tiredness, or a diagnosis of coeliac disease with abnormal blood results. Discuss a gluten-free diet with a qualified clinician or dietitian, because avoiding gluten is central to healing but needs careful nutritional planning.

Your clinician may recommend folic acid after checking relevant blood tests and considering vitamin B12 status. Do not self-treat prolonged symptoms with supplements alone, since folic acid can improve blood changes while another deficiency remains unrecognised. Continue follow-up to check recovery and nutrition.

Seek urgent care for severe breathlessness at rest, fainting, chest pain, confusion, marked weakness, or difficulty swallowing. Persistent vomiting, dehydration, or blood in the stool also needs prompt assessment rather than being put down to coeliac disease.

Ask whether your blood count suggests folate deficiency, whether iron and vitamin B12 should be checked, and how long supplementation should continue. You can also ask for help reviewing your gluten-free diet and arranging follow-up blood tests.