Summary
This mouse study demonstrates that maternal diglyceride (DAG) oil consumption during pregnancy attenuates several adverse metabolic outcomes in male offspring exposed to high-fat feeding, principally through restoration of purine/pyrimidine metabolism and modulation of gut microbiota composition. Fecal microbiota transplant experiments confirmed the causal role of DAG-induced microbiota changes in reversing high-fat diet dysbiosis. Although maternal DAG intake provided protective effects, post-weaning diet remained the dominant determinant of offspring metabolic phenotype, suggesting DAG supplementation may offer modest intergenerational metabolic benefits primarily when combined with sustained dietary intervention.
Regional applicability
This is a controlled mechanistic study in mice and does not directly translate to human populations or UK farming/food policy. However, the findings on maternal micronutrient (DAG) effects on intergenerational metabolic health could inform future human nutrition research and maternal dietary guidance in the United Kingdom; replication in human cohorts would be required before clinical or policy application.
Key measures
Blood lipid concentrations, purine/pyrimidine metabolite levels, Firmicutes/Bacteroidetes ratio, faecal butyrate production, body weight and metabolic parameters in offspring
Outcomes reported
The study measured blood lipid levels, purine/pyrimidine metabolism markers, and gut microbiota composition in male offspring from mothers fed either normal, high-fat, or diglyceride diets. Fecal transplant experiments were conducted to confirm causality of microbiota changes in reversing high-fat diet-induced metabolic effects.
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