Analysis of the “diet effect” revealed a cluster of proteins shared by all diet intervention groups regardless of IUGR, which was related to the Gene Ontology (GO) terms lipid metabolic process, fatty acid ß-oxidation, PPAR signaling, and peroxisome. In detail, the expression of Ehhadh, Hmgc2, Decr1/2, and Eci1 was increased in all offspring groups. This evidence concerns the gene ECI1 and fetal growth restriction.