Most public health messaging on alcohol and pregnancy focuses on the mother. Yet new research from Texas A&M University shows that paternal alcohol use before conception may leave lasting biological marks on children. Fathers have far more influence than many people assume.
Paternal Alcohol Use Alters Biological Signals in Sperm
Dr Michael Golding is a professor at Texas A&M’s College of Veterinary Medicine and Biomedical Sciences. He studies how alcohol changes biological signals in sperm. His work centres on epigenetics. This is the study of how behaviours and environmental factors alter gene expression without changing DNA itself.
A new $2.9 million grant from the National Institute on Alcohol Abuse and Alcoholism (NIAAA) funds the next phase of his research. Golding and his team will examine how paternal alcohol use may predispose children to chronic illness, accelerated ageing and developmental disorders.
“We want to understand how the memory of paternal alcohol exposure transmits to the children and then how it predisposes them to birth defects and chronic disease later in life,” Golding said.
When Both Parents Drink, Risks May Compound
A key question in the new research is whether a father’s drinking before conception worsens outcomes when combined with maternal alcohol use.
“In this phase, we want to see if dad’s drinking interacts with mum’s drinking to make things worse,” Golding said. “Do these things compound and contribute to worse health outcomes over time for their children?”
The question matters enormously. Fetal alcohol spectrum disorders (FASD) already affect up to 17 in every 1,000 children in the UK. Many cases go undiagnosed. If paternal alcohol use amplifies those risks, the true toll on child health could be far higher than current figures suggest.
Mitochondria at the Centre of the Research
Golding’s team focuses on mitochondria, the structures inside cells that produce energy. Alcohol-related cellular stress disrupts key molecular signals in sperm. That disruption then impairs mitochondrial function in the child.
Researchers link mitochondrial dysfunction to accelerated ageing and chronic conditions such as metabolic disorders and cardiovascular disease. Golding offers a simple analogy to explain what this means.
“If your dysfunctional mitochondria represent a flat tyre, you’re basically starting off life with a flat tyre,” he said. “The question is, how far do you get before the car starts to break down?”
The team wants to pinpoint when those early biological disadvantages become measurable health problems across a child’s lifetime.
Father’s Drinking Before Conception Is More Harmful Than Once Thought
Public understanding of prenatal alcohol risk has long centred on the mother. Golding says that framing misses a critical part of the picture.
“I think there’s a notion that male alcohol use does not have an impact on the offspring, and that’s completely not true,” he said. “We know now, even from human clinical studies, that male alcohol use has an adverse effect on child health and development.”
The implications are direct. Protecting children from alcohol-related harm must start earlier. Both prospective parents bear responsibility for the health choices they make before conception.
Research Points to Broader Environmental Risks
Paternal alcohol use is the current focus, but Golding sees the work as a gateway to understanding other environmental threats. He wants to know whether microplastics and industrial chemicals leave similar biological imprints on reproductive health.
“Alcohol is the easiest place to start because it’s a known bad guy,” Golding said. “Moving into the distant future, once we get this figured out, we would move on and say, do microplastics do the same thing?”
The study, supported by Texas A&M AgriLife Research, aims to give scientists the tools to detect developmental risks earlier. The goal is to design targeted interventions and improve long-term outcomes for children affected before birth.
(Source: WRD News)