The Sprite challenge, which typically involves chugging a full 2-liter bottle of Sprite as fast as possible without vomiting, is genuinely dangerous. Most people who attempt it vomit almost immediately, and the rapid intake of that much carbonated liquid can cause injuries ranging from minor tears in the esophagus to, in rare cases, a ruptured stomach. It’s not just unpleasant. It pushes your body past several physical limits at once.
Why Your Body Rejects It So Quickly
The average adult stomach holds about 1,500 milliliters, or 1.5 liters. A 2-liter bottle of Sprite exceeds that capacity before you even account for the gas. Carbon dioxide dissolved in the soda rapidly converts to free gas once it hits the warm environment of your stomach. That expanding gas increases pressure inside the stomach, which triggers belching. But when you’re chugging faster than your body can release that gas, the pressure builds until vomiting becomes inevitable.
Research on carbonated beverages shows that symptoms of gastric distress begin at volumes as low as 300 milliliters, roughly one-sixth of the challenge amount. The combination of sheer liquid volume and rapid gas expansion overwhelms the stomach’s ability to cope, and the body’s fastest solution is to expel everything.
The Real Risk: What Forceful Vomiting Can Do
Vomiting itself isn’t the danger people think about when they try the challenge, but it’s where the most common injuries happen. Violent, projectile vomiting can cause what’s called a Mallory-Weiss tear, a rip in the lining where your esophagus meets your stomach. These tears bleed, sometimes significantly. Signs include vomiting blood (bright red) or bloody stools afterward. Most heal on their own, but severe cases can lead to hemorrhage that requires medical treatment.
The vomiting from the Sprite challenge tends to be sudden and forceful, exactly the kind most likely to cause these tears. Unlike vomiting from a stomach illness, which usually builds gradually, the carbonation-driven expulsion happens with very little warning and a lot of force.
Aspiration: Inhaling What Comes Back Up
When you vomit while still trying to swallow, or when vomit comes up so fast you can’t control it, there’s a real chance of inhaling liquid or stomach contents into your lungs. This is called aspiration, and it can lead to aspiration pneumonia, an infection caused by foreign material sitting in lung tissue.
Normally, your body coughs out anything that goes “down the wrong pipe.” But during the kind of chaotic, forceful vomiting the Sprite challenge produces, your airway reflexes may not keep up. The risk increases if alcohol is involved, which it sometimes is when people attempt the challenge at parties. Being impaired by alcohol or drugs is a recognized risk factor for aspiration pneumonia.
Stomach Rupture: Rare but Documented
The most extreme outcome is gastric rupture, where the stomach wall tears open under pressure. This is rare, but it has happened. A case published in PubMed in 2023 described a 34-year-old woman who consumed large amounts of carbonated beverages and developed acute abdominal pain. Emergency surgery revealed her stomach had ruptured, causing a severe abdominal infection. She died after the operation.
That case involved other factors beyond just carbonation, but it illustrates that the stomach has a hard limit. When gas expansion and liquid volume push past that limit, the consequences can be catastrophic. A healthy stomach lining in a young person is unlikely to rupture from a single attempt, but the risk isn’t zero, and it increases if you’ve eaten beforehand or have any pre-existing weakness in your stomach wall.
Higher Risk With Certain Conditions
Some people face elevated danger without knowing it. If you have acid reflux or GERD, carbonated beverages already worsen your symptoms under normal conditions. Flooding your stomach with 2 liters of carbonation can trigger severe reflux episodes and cause stomach acid to splash into your esophagus and throat with unusual force. People with a hiatal hernia, where part of the stomach pushes up through the diaphragm, are especially vulnerable to this.
Sprite has a pH of about 3.24, making it moderately acidic. That’s not dangerous on its own in normal quantities, but when you combine it with the stomach acid (pH close to 1) that gets forced upward during vomiting, your esophagus and tooth enamel take a hit. Gastric juice is more erosive than any carbonated drink, and repeated exposure causes irreversible damage to teeth. Even a single episode of violent vomiting bathes your teeth in acid strong enough to soften enamel.
What Actually Happens to Most People
The typical outcome of the Sprite challenge is intense nausea, violent vomiting within seconds to minutes, and a miserable few hours afterward. Bloating, stomach cramps, and a sore throat from vomiting are common. Most people don’t end up in the emergency room, but the experience is far more physically punishing than the lighthearted social media videos suggest. The videos that get shared are the funny ones. The ones where someone aspirates vomit or tears their esophageal lining don’t tend to go viral.
The challenge is designed to be impossible. Your stomach simply cannot hold 2 liters of rapidly expanding carbonated liquid. You’re not failing the challenge when you vomit. Your body is protecting you from a situation that, without that reflex, could cause serious internal injury.