University of São Paulo study links paternal ultra-processed food intake to infant health

A study from the Ribeirão Preto Medical School at the University of São Paulo (FMRP-USP) suggests that the consumption of ultra-processed foods by fathers can influence the weight and fat accumulation of infants at birth.

Researchers observed that high intake of products such as sodas, filled cookies, pre-packaged fries, and packaged snacks is associated with increased fat in the thighs and abdominal sides of newborns. This excess body fat at birth is considered a risk factor for the development of cardiometabolic diseases in adulthood.

The study analyzed 43 families within the public health system in Ribeirão Preto, São Paulo. Data revealed that 30% of the total energy consumed by the fathers came from processed meats, cookies, and sugary drinks.

Scientists hypothesize that these diets affect sperm formation prior to conception. Specifically, the IGF-II gene, which is inherited exclusively from the father and is responsible for fetal growth, may undergo biochemical modifications through methylation due to dietary habits. This epigenetic process can alter gene expression transmitted to the baby.