Key Points
Formula prices jumped 45% between 2021 and 2023 in the UK.
Nearly 40% of parents watered down feeds or reused formula to stretch supplies.
Almost half accumulated unpayable debt; one in three left homes unheated.
10% of parents took formula from shops without paying as a last resort.
A Swansea University study has exposed a crisis in UK infant feeding. Prices for formula milk jumped 45% between 2021 and 2023, forcing parents into dangerous coping strategies. Nearly 40% watered down feeds or reused leftover formula. Almost half accumulated unpayable debt. One in ten admitted taking formula from shops without paying. The research, funded by the Medical Research Council and published in Maternal and Child Nutrition, surveyed 281 struggling parents and marks the first comprehensive UK evidence of formula affordability’s impact on family welfare.
What the study found about unsafe feeding practices
Almost 40% of parents reported using potentially unsafe feeding methods. These included watering down formula to stretch supplies, reusing leftover milk, and reducing sterilisation of bottles. Parents knew these practices could harm their babies but felt trapped by cost. One mother told researchers she sometimes regretted having her baby due to financial strain, though she stressed her love for her child.
The financial toll on families
Nearly half of the 281 parents surveyed had taken on debt they found difficult to repay. 43% fell behind on household bills. More than a third left their homes unheated to save money. One in five mothers cut maternity leave short and returned to work early to pay for feeds. The Competition and Markets Authority identified profit margins on formula milk ranging from 50% to 75% during this period, according to the research.
Alternative feeding strategies and mental health impact
Nearly half of families introduced solid foods before their baby was ready. 45% switched to cheaper milk intended for older babies. One in ten parents reported taking formula from shops without paying, which researchers described as an act of last resort. Almost every parent surveyed reported damage to their mental health, with widespread anxiety, guilt and isolation. The study revealed severe emotional distress linked to the financial pressures of caring for a baby.
What Amy Brown, the lead researcher, says is needed
Amy Brown, Professor of Public Health at Swansea University, emphasised the urgent need for holistic support in infant feeding. She highlighted that formula prices were already high before the cost-of-living crisis began. Brown stressed the importance of ensuring families have reliable access to affordable formula to maintain infant health and nutrition during economic hardship.
Final Thoughts
The Swansea study exposes a public health crisis driven by formula price inflation. With profit margins reaching 75% and prices up 45% in two years, UK parents face an impossible choice between debt and unsafe feeding. Policymakers must act to make formula affordable.
FAQs
Formula prices rose up to 45% between 2021 and 2023, according to the Swansea University study. Profit margins on formula reached 50% to 75% during this period.
Almost 40% of parents surveyed reported using unsafe feeding practices, including watering down formula, reusing leftover milk, and reducing bottle sterilisation.
One in ten parents admitted taking formula from shops without paying, which researchers described as an act of last resort by families in absolute desperation.
Nearly 47% of parents surveyed accumulated debts they expected to struggle to repay. 43% fell behind on household bills.
Disclaimer:
The content shared by Meyka AI PTY LTD is solely for research and informational purposes. Meyka is not a financial advisory service, and the information provided should not be considered investment or trading advice.
About Author

Huzaifa Zahoor
Co FounderHuzaifa Zahoor is the engineer who built Meyka. He has spent years writing Python, training AI models, and building data pipelines specifically for financial markets. His technical articles have reached over 30,000 readers on Medium, so he knows how to make complex things easy to follow. If this article touches on how the tools work, he is the person who actually built them.
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