HADH gene codes a mitochondrial enzymed involved in the metabolism of fatty acids. Deficiencies cause an abnormally hight insulin secretion in response to a protein rich diet. Two autosomal recessive disorders HADH deficiency and neonatal hyperinsulinemic hypoglycemia are allelic variants.
| Clinic | Method | Carrier testing |
| Turnaround | 5 days | |
| Specimen type | genomic DNA |
| Clinic | Method | Massive parallel sequencing |
| Turnaround | 25 days | |
| Specimen type | genomic DNA |
| Clinic | Method | Genomic sequencing of the entire coding region |
| Turnaround | 25 days | |
| Specimen type | genomic DNA |