Summer Slush Warning

Summer Slushie Safety Alert: Why Glycerol-Containing Slushies Pose Risks for Young Children

A picture of four colourful ice slush drinks

As temperatures soar and slushie cravings rise, the Food Standards Agency (FSA) has issued a vital safety warning focused on protecting children from potential dangers linked to glycerol—a common ingredient in slush ice drinks. Updated on 17 July 2025, this guidance coincides with the peak summer season, when these icy treats are most popular at play areas, leisure venues, and outdoor events Food Standards Agency.

Key Highlights:

  • No slushies for under-7s
    The FSA unequivocally advises that children under seven years old should not consume slush ice drinks containing glycerol due to heightened vulnerability and the low margin for error in dosing Food Standards Agency+1.
  • Limit for 7–10 year-olds
    Children aged seven to ten may have no more than one 350 ml slushie per day—roughly the size of a standard soda can—to help curb overexposure Food Standards Agency foodstandards.gov.scot.
  • Industry cooperation and consumer vigilance
    The FSA has called on retailers to support these recommendations by eliminating free refill promotions for under-10s, and on manufacturers to minimise glycerol content to the lowest amount necessary. It also urges parents to check ingredient listings or ask vendors directly if glycerol is present Food Standards Agency+1.

Why the Concern?

Glycerol is often used in slushies for its ability to maintain a semi-frozen texture, acting as a sugar substitute to prevent full freezing. However, for young children—particularly those with lower-than-average body weight—high consumption in a short window can lead to glycerol intoxication, presenting as shock, dangerously low blood sugar, or even loss of consciousness Food Standards Agency+1 foodstandards.gov.scot.

A review of hospital records revealed 21 cases of glycerol intoxication in children aged 2–6 between 2009 and 2024, most of whom became acutely ill within an hour of consuming a slushie. Symptoms ranged from unconsciousness to low potassium and blood sugar levels People.com.

What You Can Do:

For caregivers: Avoid giving slushies with glycerol to children under seven, and limit older children to one serving per day.

At point of sale: Look for clear labelling or ask staff about glycerol content. If you're unsure, it's best to skip it.

In case of adverse symptoms: If a child becomes unwell—experiencing nausea, headache, confusion, or drowsiness—seek medical attention immediately. Low blood sugar should be addressed with sweet food or drink and by calling 111; if they become unresponsive or exhibit severe symptoms, call 999 Food Standards Agency.

By following these simple yet effective precautions, families can still enjoy summer treats—just a little more safely. Stay cool, but keep it cautious