Maternal Pre-Pregnancy Hypertension Tied to Elevated ALT in 488 Finnish Children Followed to Adolescence

Researchers tracked maternal cardiometabolic status, infant feeding, diet, body composition, and serial ALT measurements in a population-representative Finnish cohort. Maternal hypertension before pregnancy showed consistent associations with elevated ALT at multiple ages; visceral adiposity, higher animal-protein intake, and earlier solid-food introduction also correlated with higher values. No links emerged with physical activity or sleep. These patterns align with developmental-origins hypotheses in which prenatal metabolic stress and accelerated postnatal nutrition program hepatic fat accumulation years before clinical disease.

The 12-15 percent prevalence of elevated ALT in an otherwise healthy group underscores how common early metabolic signals may already be. Rising pediatric MASLD incidence worldwide suggests the Finnish findings capture a broader shift driven by changing maternal health and infant-feeding practices rather than adult lifestyle alone. Observational design limits causal claims, yet the temporal sequence from prenatal factors to adolescent biomarkers strengthens plausibility.

Replication in larger, multi-ethnic cohorts with direct imaging and mechanistic biomarkers is required before preventive guidelines can incorporate prenatal hypertension screening or breastfeeding-duration targets. Randomized trials of optimized early diet remain ethically and logistically distant.