<unk>  is a condition that prevents the body from using fats for energy, particularly during periods without food.<unk> , a natural substance acquired mostly through diet, is used by cells to process fats and produce energy.  People with<unk>  have defective proteins called<unk>  transporters, which bring<unk>  into cells and prevent its escape from the body.
Primary carnitine deficiency
Very long-chain acyl-coenzyme A dehydrogenase deficiency
Carnitine palmitoyltransferase deficiency
Pyruvate dehydrogenase deficiency
Ornithine transcarbamylase deficiency
Alpha-ketoglutarate dehydrogenase deficiency
Carnitine palmitoyltransferase I deficiency
Isobutyryl-coenzyme A dehydrogenase deficiency