- Glycerol, a common additive in sugar-free slushie drinks, can trigger severe medical symptoms in young children, including unconsciousness, seizures and dangerously low blood sugar
- A study across the U.K. and Ireland found that nearly all affected children became sick within an hour of consuming slushies, with no prior health issues or underlying medical conditions
- Symptoms mirrored rare metabolic disorders, confusing emergency responders and delaying proper treatment, despite the cause being an ingredient found in a popular children’s beverage
- Glycerol exposure caused measurable metabolic disruption, including low blood sugar, acid buildup in the blood, low potassium and high triglyceride levels unrelated to fat intake
- Avoiding slush ice drinks completely eliminated the problem in nearly all of the children, making removal of this one product a powerful step for parents looking to protect their child’s health
(Mercola)—Slushies seem like harmless treats, especially in summer, but they often contain an additive that can make children sick. Glycerol, also listed on labels as E422 or glycerin, is used to keep slush drinks from freezing solid without loading them with sugar. It’s approved as a food additive across the U.S. and Europe.
At certain concentrations, however — and especially when consumed rapidly by small children — glycerol doesn’t just sweeten the treat. It throws off normal metabolic balance, dragging blood sugar to critically low levels, disturbing potassium levels and triggering a metabolic emergency.
What makes this more dangerous is how symptoms mirror inherited metabolic conditions. That leads to confusion in emergency departments and delays in appropriate treatment. Recent research revealed what’s really happening inside a child’s body during glycerol intoxication and how to avoid this serious condition.1
Slushies Sent Healthy Kids to the ER Within an Hour
A study published in Archives of Disease in Childhood looked at 21 cases of children in the U.K. and Ireland who got seriously sick shortly after drinking slushies.2 All of the children — mostly toddlers and preschoolers — were healthy beforehand and their symptoms often appeared within 60 minutes of sipping the drink.
- Children got sick fast after drinking slushies — Within an hour, almost every child had a drop in consciousness. The symptoms were so serious, doctors initially thought these kids might have rare genetic conditions that affect how the body turns food into energy.
- The common ingredient was glycerol — Every slush drink linked to these cases contained glycerol, which keeps the slush smooth without using much sugar. Even though glycerol is considered safe in small amounts, it caused major problems in these young children, as blood tests showed it was building up in the body.
Children also had low potassium and artificially high triglyceride levels, meaning their blood tests showed fat levels that didn’t match what was really there.
- Symptoms followed a clear pattern — Nearly all the children had dangerously low blood sugar. In most cases, it dropped below a level that can lead to coma or even death. Almost every child had acid buildup in the blood, and most had low potassium, which interferes with nerves and muscles. One child even had a seizure. Every urine test showed high levels of glycerol.
- One child got sick a second time after another slushie — Most of the children got better after they stopped drinking slushies. But one child had a repeat episode more than three years later after drinking another one. This time, the parents quickly gave a glucose drink and called for help. The symptoms faded before the child made it to the hospital, confirming that glycerol — not a disease — was to blame.
Why Children React So Strongly to Glycerol
Young children have less body mass, so a 500 milliliter (mL) (17 ounce) slushie contains way too much glycerol for them. Even a half-serving could be enough to cause harm. Drinking a slushie quickly — or while hungry or after exercise — makes the body even more vulnerable to a crash.
- The liver gets overwhelmed fast — Once glycerol enters your body, your liver has to process it. In children, especially those who haven’t eaten recently, this process doesn’t work as smoothly. The liver can’t keep up, and that leads to a rapid drop in blood sugar and a build-up of acid in the blood.
- Too much glycerol blocks your body’s backup fuel system — Normally, when you haven’t eaten in a while, your body makes its own glucose. Glycerol is supposed to feed into that system. But if there’s too much, the system gets jammed. The enzymes can’t keep up, and blood sugar tanks. Children may also have underdeveloped enzymes, making the reaction even worse.
- Glycerol interferes with brain pressure and electrolytes — Glycerol pulls water through cells, which is why it’s used in hospitals to reduce brain swelling in trauma patients. But that same effect causes problems in children, especially if fluid shifts interfere with potassium levels or increase pressure in the brain. This could explain the sudden drowsiness and seizures seen in some of the cases.
Avoid Slushies — Choose Healthier Alternatives Instead
If you’re a parent of a young child, especially under the age of 8, the best thing you can do right is eliminate slush ice drinks from your child’s routine. These colorful frozen treats not only typically contain high-fructose corn syrup, artificial colors and flavors, but if they contain glycerol — and most sugar-free or “no added sugar” versions do — they can cause a rapid, dangerous drop in blood sugar and trigger symptoms that mimic serious metabolic disorders.
Once you understand the mechanism behind what’s happening in your child’s body, the solution becomes clear: remove the cause and offer something better. Here’s what I recommend you do to protect your child’s health:
- Stop buying slushies, especially the sugar-free ones — Glycerol is added to keep the slush consistency in sugar-free drinks, but it’s not safe for small children. Ingesting just 50 to 220 mL (1.7 to 7.4 ounces) of a slushie is enough to trigger severe symptoms in toddlers.3 If your child is under 8, their body weight is low enough that even a small amount of glycerol hits hard. If you’re unsure whether a slush drink has glycerol, assume that it does unless the label specifically says otherwise. Many brands don’t list exact concentrations, so transparency is an issue. The safest choice is to avoid slushies entirely. Even if they don’t contain glycerol, most slushies are better off avoided.
- Offer real-food treats that support blood sugar stability — Most children love sweet, cold treats — so give them alternatives that don’t destroy their metabolic balance. Blend fresh fruit with crushed ice or frozen mango cubes with coconut water. You get sweetness, hydration and vitamins without the hidden risk of glycerol-induced low blood sugar. If your child is healing from any kind of blood sugar crash, real fruit and simple carbs like white rice or maple syrup in small amounts are far better choices than processed sugar-free treats. You’re giving their body fuel it recognizes and can use safely.
- Make sure your child eats before consuming any sweet treat — If your child has been running around at a park or hasn’t eaten in several hours, their metabolic system is already working hard. Dumping a slushie on top of an empty stomach magnifies the risk. If you do allow the occasional sweetened drink, always pair it with a meal or snack first. Even something as simple as a banana or a boiled egg beforehand creates a buffer that protects against sharp blood sugar crashes.
- Teach your child to sip slowly, not chug — One thing that stood out in the research was how quickly children drank these slush drinks. When you consume glycerol too fast, your body doesn’t have time to process it properly. For any treat — whether juice, smoothie or something frozen — teach your child to sip slowly. Set the tone by sharing it with them and modeling the behavior. Small, slow sips over time let their metabolism keep up and prevent the kind of overload that leads to glycerol intoxication.
- Spread the word to other parents and caregivers — Most parents have no idea slushies are risky. Share what you now know with grandparents, babysitters, teachers and family friends. If someone’s watching your child, make it clear: no slushies, especially the ones labeled sugar-free or artificially sweetened. If your child has ever had an unexplained episode of low energy, confusion or vomiting after a frozen drink, now you know what could be to blame. Educating the people around you helps prevent future incidents and makes your child’s environment safer wherever they go.
By removing the trigger and supporting your child’s natural metabolism with real food and smarter habits, you’re not just avoiding a one-time scare — you’re building long-term health.
FAQs About Glycerol in Slushies
Q: What ingredient in slushies is making kids sick?
A: Glycerol (also labeled as E422 or glycerin) is the ingredient responsible. It’s added to sugar-free slush ice drinks to keep them smooth and slushy, but in young children, it can trigger serious symptoms like unconsciousness, low blood sugar and seizures.
Q: How quickly do symptoms appear after drinking a slushie with glycerol?
A: Symptoms usually appear within 60 minutes of consumption. Most children in the study became drowsy, confused or unresponsive shortly after drinking a slushie, especially if they hadn’t eaten recently or had been physically active.
Q: What are the signs of glycerol intoxication in children?
A: Key symptoms include decreased consciousness, low blood sugar, acid buildup in the blood, low potassium, high triglyceride readings and sometimes seizures. These symptoms mimic rare genetic disorders.
Q: Is this a one-time issue or does it keep happening?
A: In the majority of cases, the illness didn’t return once the child stopped drinking slushies. However, one child who drank another slushie years later had symptoms return almost immediately — confirming that glycerol was the trigger.
Q: What’s the safest way to protect my child?
A: Avoid giving your child slush ice drinks entirely, especially sugar-free versions. Offer real-food alternatives like frozen fruit smoothies instead.
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Two Storms, One Harvest
Every food crisis in living memory has been a one-shock event. The 2008 price spike was a commodity bubble. The 2020 shortages were a logistics failure. The 2022 grain scare was a war on one exporter’s ports. Each time, the system bent, adjusted, and recovered, and each time the experts assured us afterward that global markets are simply too big and too diversified to fail.
What nobody in Washington seems eager to discuss is that 2026 is shaping up to be something the modern food system has never actually faced. Two independent shocks, one climatic and one geopolitical, are converging on the same harvest cycle at the same time. Not sequentially. Simultaneously.
Start with the weather. The Pacific Ocean is currently building toward what forecasters now openly call a record event. NOAA’s Climate Prediction Center puts the odds of at least a strong El Niño near 88 percent, with roughly two in three odds it reaches “very strong” status, the tier reserved for perhaps three or four events in the entire satellite era. Every major global model now projects a median peak in Super El Niño territory, and most of them project it exceeding the 2015-16 event, which until now held the modern record. Sea surface anomalies were already brushing the super threshold in mid-July, months before these events normally peak. The atmosphere has already shifted into El Niño mode, and the event is forecast to crest in late fall and early winter.
This is not about “climate change.” It’s about the standard cycles of weather, and the cycle we’re currently in is one that has likely devastated societies in the past. We’re better prepared as a society today, but not all Americans are equally prepared.
Serious households have started doing the quiet math on their own. Grocery bills tell part of the story, and the forecast maps tell the rest, which is why long-term food storage has moved from fringe hobby to mainstream line item in the family budget, with established suppliers like Heaven’s Harvest seeing demand from people who five years ago would have rolled their eyes at the idea. That instinct is not paranoia. It is pattern recognition, and the pattern is worth walking through carefully.
Editor’s Note: Heaven’s Harvest IS a sponsor, but the warnings of this article are real and would be written even if we didn’t have a survival food sponsor. With that said, those who take advantage of what they offer can use promo code “Patriot” for 15% off.
The Fertilizer Clock Is Already Running
While the Pacific warms, the second shock has been unfolding in the Strait of Hormuz. The conflict with Iran turned the world’s most important energy chokepoint into a contested waterway, and the consequences reach far beyond the gas pump. Roughly a third of global fertilizer trade moves through Hormuz, and the disruption sent urea prices up 86 percent year over year by March, with a 53 percent jump in a single month.
The World Bank projects energy prices rising about 24 percent in 2026 and fertilizer about 31 percent. By its own accounting, fertilizer prices ran 35 percent higher in the first five months of this year than the same period last year.
Here is the mechanism the nightly news will not explain. Fertilizer is not a grocery item. It is a time-delayed input. The nitrogen a farmer in Iowa or Punjab could not afford to apply this spring does not show up as a problem this spring. It shows up as a thinner harvest six to twelve months later.
The World Bank’s own food security brief concedes that the effects of reduced applications earlier this season “are likely to become visible only later in harvest outcomes.” Translate that from institutional language into plain English and it means this. The damage is already done, it is already in the ground, and we are simply waiting for it to arrive on the shelf.
Now check the calendar. Six to twelve months from the spring planting season lands us squarely in late 2026 and early 2027. Which is precisely when the strongest El Niño in the instrumental record is forecast to peak, bringing its signature droughts to Southeast Asia, Australia, southern Africa, northern Brazil, and South Asia, the very regions that grow the world’s rice, sugar, and oilseeds.
The World Bank warns openly that a strong El Niño “could disrupt multiple crop belts simultaneously” on top of the conflict-driven input costs. Their baseline projection assumes the Middle East disruptions ease by autumn. What in the last two years of Middle East history suggests that assumption is safe?
The System Has No Slack Left
The comfortable answer is that global markets always adjust. But adjustment requires slack, and the slack is gone. Global cereal production is expected to decline from last year’s records even before El Niño does its work. The UN World Food Programme, hardly a den of right-wing preppers, is calling this the most significant disruption to its supply chains since Covid and the invasion of Ukraine, and its supply chain director put the stakes bluntly.
Today’s supply chain challenges are tomorrow’s hunger crisis.
There is also a political dimension that markets cannot price. When food gets scarce, governments do not behave like economists. They behave like politicians. Export bans, hoarding mandates, and panic buying at the national level turned the modest rice shortfall of 2008 into a global crisis, and analysts are already warning that import-dependent nations are the first dominoes.
The 2015-16 Super El Niño, a far weaker event than what is now forecast, threw tens of millions into food stress across Africa and Asia. This one is projected to be stronger, and it arrives with fertilizer already rationed by price and shipping lanes already contested by missiles.
What Joseph Knew
Scripture does not treat preparation for lean years as faithlessness. It treats it as wisdom delivered in advance to those willing to act on it.
Behold, there come seven years of great plenty throughout all the land of Egypt: And there shall arise after them seven years of famine; and all the plenty shall be forgotten in the land of Egypt.
Joseph did not respond to that warning with a hashtag or a committee. He stored grain during the years of abundance, and when the famine came, Egypt stood while its neighbors begged. The lesson is not that famine is certain. It is that the time to prepare is precisely when preparation still looks optional.
Nobody who filled a pantry in a year of plenty has ever regretted it, and nobody standing in an empty aisle has ever been glad he waited for certainty.
None of this calls for panic, and panic is the enemy of sound judgment anyway. It calls for the same unglamorous prudence our grandparents considered ordinary. Keep some cash margin, know your local growers, and put real food in deep storage while it is cheap and available, because the entire arc of this story is that cheap and available is a closing window.
Families looking for a straightforward place to start can visit Heaven’s Harvest and use promo code Patriot for 15 percent off long-term storable food. The forecasts may yet soften, the strait may yet reopen, and we should pray they do. But hope is a fine thing to hold and a foolish thing to eat.