For every 5 per cent extra energy a mother consumed in the form of saturated fat, the epigenetic age of her child was, on average, six weeks higher. When that extra energy was consumed in the form of monounsaturated fat, the epigenetic age was, on average, 12 weeks higher.
While the researchers expressed surprise about the monounsaturated fat association, particularly given this type of fat is considered beneficial for heart health later in life, Skilton stressed the study was observational and small and further research was required. “That may suggest that a low-carbohydrate diet may not be beneficial for the offspring’s biological age and long-term risk of heart disease ... We found no robust association with protein intake.”