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Glutaric aciduria type 1 (GA1)

Glutaric aciduria type 1 (GA1) is an inherited condition. It happens when a particular enzyme is missing or not working. The enzyme is called glutaryl-CoA dehydrogenase.

The body needs the enzyme to break down protein. Without this enzyme, harmful amino acids build up in the body. These can cause damage to the brain, movement difficulties, seizures and difficulty swallowing.

If GA1 is not detected and treated early, it can be life threatening.

Babies in Ireland with GA1

Around 1 in every 54,000 babies born in Ireland has GA1.

Babies with GA1 inherit one altered GA1 gene from each parent.

How heel prick screening can help

Babies with GA1 benefit from early diagnosis and treatment.

If the heel prick suggests your baby may have GA1, they will be referred to a specialist.

Your baby will then be put on medicine and a special low-protein diet. This diet is for life.

Page last reviewed: 12 December 2022
Next review due: 12 December 2025