Participants with long-chain 3-hydroxy-acylCoA dehydrogenase deficiency (LCHADD)/trifunctional protein deficiency (TFPD) report consistent low-fat diet intake over time. - Gregor A; Sim E; Riemenschneider A; Lau A; Choi D; Jacobs P; Gillingham MB (Molecular genetics and metabolism, 2026)