Several studies have shown impaired placental transport of docosahexaenoic acid (22:6 n-3, DHA) by GDM (Herrera & Ortega-Senovilla 2010, Leveille et al. 2018), likely as a consequence of alterations in fatty acids (FA) transport proteins related to phospholipids transfer such as the major facilitator superfamily domain-containing 2a (MFSD2a) and FA transport protein 4 (FATP-4) (Prieto-Sanchez et al. 2017, Segura et al. 2017). The gene discussed is MFSD2A; the disease is gestational diabetes.