 The results of this study suggest that maternal lipid levels are not significantly associated with birth weight and called blood insulin levels. Instead, pre-pregnancy overweight, obesity appears to be the most influential upstream metabolic risk factor for both maternal and neonatal metabolic health. This implies that weight management should be addressed from the preconception period and during early pregnancy. This article was authored by Naived Sattar, Jin Hulu, Shou Chou, and others.