Nearly all of the children in the study -- 94% -- experienced a drop in consciousness, 95% had dangerously low blood sugar, and 94% developed a buildup of acid in the body. Other symptoms included low potassium levels, excessive fat levels in the blood, and high levels of glycerol in the urine.

Powered by North Mississippi Health Services. Doctors say public health advice on the safe consumption of the popular drinks - known as "slushees" - may need further revising following a recent spike in cases.

The researchers studied cases of 21 two-to-seven-years-old in the UK and Ireland who needed emergency treatment soon after drinking a slushy product. These are bright colored drinks which appeal to kids because of their attractive colors.

They might seem like a harmless, nostalgic summer treat, but a little-known ingredient in some frozen slushies can pose a serious health risk for some kids. In a new study, experts review 21 cases of children who became unwell after consuming these products and ask whether the time is right to update public health guidance,