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Halloween approaches and families everywhere are planning costumes and candy runs. But a University of Bristol psychologist is urging parents to think twice before handing over certain sweets to children this year. His concerns span specific candies and the broader health risks of sugar, and they may change how you sort that trick-or-treat haul.
Why licorice deserves a second look this Halloween
Licorice isn’t just a sugary chew. It is made from the Glycyrrhiza glabra root and contains a compound called glycyrrhizin. This compound can interfere with hormone systems in ways that matter for children’s health.
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- Glycyrrhizin can mimic adrenal hormones such as cortisol and aldosterone.
- Large amounts may cause fluid retention and raise blood pressure.
- Possible consequences include low potassium, muscle breakdown, and strain on the heart, liver, and kidneys.
In small doses, licorice has been used for mild digestive relief. Still, doctors warn that overconsumption, especially by children, can spark serious problems. Parents should monitor how much licorice their child eats and consider excluding it from a Halloween stash.
How sour sherbets and powdered candies damage teeth and mouth
Sweets like powdered dipping treats and “super sour” candies get their bite from citric acid. That tang is part of the thrill, but it also harms oral health.
- Acidic candy lowers the pH of saliva.
- Repeated exposure strips tooth enamel, increasing cavity risk.
- Some people develop mouth ulcers or painful irritation after very sour sweets.
There are reports linking these products to stomach lining irritation in sensitive people. Acidic candies can be harsh on young mouths, so offering them in moderation or swapping them for less acidic options is wise.
What sugar does from the mouth to the heart
Sugar’s effects begin immediately in the mouth. Bacteria feed on sugars, producing acids that erode enamel. This leads to cavities and gum inflammation.
Short-term reactions
- Blood-sugar spikes can trigger bursts of energy and nervousness.
- These episodes are often followed by rapid drops in blood sugar, causing fatigue and irritability.
Long-term risks
- Frequent high-sugar intake promotes weight gain and insulin resistance.
- Over time, this raises the risk of Type 2 diabetes.
- High-sugar diets are linked to heart and liver disease, and may harm the kidneys.
Sugar does far more than create cavities or a temporary “sugar rush.” It can influence metabolic health and chronic disease risk, particularly when consumed often.
Simple, practical steps parents can take this season
- Sort candy when you get home and remove particularly risky items.
- Offer water and a snack before trick-or-treating to reduce overindulging.
- Encourage children to rinse their mouths or drink water after sweets.
- Limit acidic and licorice treats, and reserve sugary snacks for small portions.
- Consider trading overly sugary or acidic items for safer alternatives or toys.
When in doubt, consult your pediatrician about food-related risks for your child. Small changes in how treats are offered can reduce harm without spoiling the fun.
