It may seem like an innocent after-school treat—a fizzy drink or a sugar-free candy. But new research suggests certain sweeteners found in these products may be nudging childhood development into high gear, potentially triggering early puberty.
A recent study presented at ENDO 2025, the Endocrine Society’s annual meeting, has drawn a concerning link between widely used sweeteners and premature hormonal changes. Researchers tracked 1,407 children and found that those who consumed more sweeteners like aspartame and sucralose were significantly more likely to enter puberty early. The effect was particularly strong in children with specific genetic markers.
The study suggests these substances can disrupt hormonal signals and even alter gut bacteria, which play a role in development. The effects also appeared to differ by gender. Boys seemed more susceptible to sucralose, while girls were affected by a broader range of sweeteners, including glycyrrhizin, which is found in liquorice.
Starting puberty ahead of schedule is not just a matter of physical growth. It can introduce a range of challenges with lasting consequences.
The findings highlight the need for greater awareness, as sweeteners are not only in obvious treats like candy and soda. They are often found in "diet" snacks, flavoured milk, and even some brands of children's toothpaste. Experts advise parents to read product labels carefully, limit intake where possible, and discuss any concerns with their child’s doctor. The term "sugar-free" does not automatically mean a product is free from potential health impacts.
In conclusion, this emerging research suggests that everyday dietary choices may influence a child's development more profoundly than previously understood. As scientists continue to explore this link, these findings could lead to updated dietary guidelines and a new perspective on what constitutes a healthy childhood diet.
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