In a heart-wrenching story from Somerset, a UK mother has revealed the prolonged ordeal her family faced before her four-year-old daughter was diagnosed with a rare and potentially life-threatening condition known as hereditary fructose intolerance (HFI). This metabolic disorder severely limits the ability to digest fructose, a natural sugar present in various fruits and vegetables, resulting in serious health complications.
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Dannie, the mother, first became concerned when her daughter, Freya, exhibited distressing symptoms as a baby. She would often scream for hours on end, leading to sleepless nights for the family. Following a challenging breastfeeding journey, when Freya was placed on infant formula, her issues only intensified. Dannie noticed signs of sickness, bloating, and diarrhoea, prompting her quest for answers, which she pursued through exhaustive online research.

Despite her concerns, medical professionals initially dismissed the possibility of HFI, suggesting that Freya’s symptoms were related to common childhood ailments like reflux or colic. Frustratingly, they even implied that Dannie might be exaggerating her daughter’s condition or fabricating symptoms. This led to a distressing accusation of fabricated or induced illness (FII), resulting in a court order that required the family to be monitored at home. For a time, Dannie was not permitted to be alone with her children, adding to the distress of an already tumultuous situation.

The turning point came when Freya was around one year old. After a period of increased lethargy and dangerously low blood sugar levels that required emergency hospital visits, a breakthrough occurred. At long last, genetic testing confirmed that Freya had HFI. “The consultant explained… ‘The genetics test has come back as positive,'” Dannie recalled. Overcome with emotion, she found relief knowing that there was a reason for Freya’s suffering and that it was not due to anything she had done.
Following the diagnosis, profound changes were evident in Freya’s behaviour. According to Dannie, her daughter transformed into a more settled and content child, displaying increased laughter and playfulness. This dramatic shift illuminated the impact that proper dietary management could have for individuals living with HFI.
HFI is currently included in a newborn screening study in the UK, which is set to run until 2027. However, Dannie, along with advocates in the HFI community, is pushing for its inclusion in the national neonatal screening programme permanently. Bill Armstrong, co-founder of the HFI UK charity, emphasised that early detection through such screenings could significantly alleviate the lengthy diagnostic process, ultimately saving families from stress and reducing the burden on the National Health Service (NHS).
He highlighted that a simple genetic test could spare parents the agony of dealing with a child struggling to thrive while allowing for timely intervention. The Department of Health, overseeing the National Screening Committee, has expressed openness to new evidence that could justify the expansion of screening programmes.
Despite the challenges faced by HFI patients, Professor Tim Cox, a leading specialist in the condition, underscores that with a safe diet, individuals can lead relatively normal lives. He cautioned, however, that diagnosing HFI can often take several years, leading to tragic consequences for some children who have gone undetected.
Armstrong noted, “All HFI people need is a safe diet,” emphasising that after the initial diagnosis, minimal NHS involvement is typically required, with annual blood tests ensuring adherence to a fructose-free diet. This starkly contrasts with the lengthy and traumatic experiences that families like Dannie’s have endured before receiving proper care.
As Dannie continues to advocate for altered screening practices, her personal journey is a poignant reminder of the critical nature of early diagnosis in rare medical conditions. “This is so simple to solve if you detect it early,” she remarked, reflecting on the unnecessary trauma her family has faced and the hope that future families might be spared similar ordeals.
