You can lower acid reflux with a combination of dietary changes, meal timing, body positioning, and, when needed, over-the-counter medications. Most people see noticeable improvement by adjusting just two or three habits, particularly what they eat, when they eat, and how they sleep. Here’s what actually works and why.
How Reflux Happens
At the base of your esophagus sits a ring of muscle that opens to let food into your stomach and closes to keep acid from traveling back up. When that muscle relaxes at the wrong time or can’t close tightly enough, stomach acid escapes upward. The result is the burning sensation in your chest or throat that most people call heartburn. Anything that weakens that muscle, increases pressure on your stomach, or ramps up acid production can make reflux worse.
Foods and Drinks That Make It Worse
Certain foods relax that lower esophageal muscle or sit in your stomach longer than usual, giving acid more opportunity to push upward. Fatty and fried foods are some of the biggest offenders because they take longer to digest, keeping your stomach full and pressurized. Chocolate, caffeine, peppermint, onions, carbonated drinks, and alcohol also tend to loosen that muscular barrier.
A second category of triggers doesn’t necessarily weaken the muscle but intensifies the burn once reflux occurs. Spicy foods, citrus fruits, tomato-based sauces, and vinegar fall into this group. They make existing acid exposure more painful rather than causing more episodes. The distinction matters because you may tolerate a mildly spicy meal just fine when your reflux is otherwise controlled, while fatty or fried foods could set off an episode on their own.
You don’t need to eliminate every item on this list permanently. A more practical approach is to remove the most common triggers for two to three weeks, then reintroduce them one at a time. This helps you identify your personal triggers rather than following a blanket restriction that’s hard to maintain.
Meal Timing and Portion Size
When you eat matters nearly as much as what you eat. Lying down with a full stomach is one of the most reliable ways to trigger reflux, because gravity can no longer help keep acid where it belongs. The standard recommendation, supported by Mayo Clinic guidance, is to stop eating at least three hours before bedtime. That window gives your stomach enough time to move food into the small intestine, reducing the volume of acid available to reflux while you sleep.
Large meals compound the problem. A very full stomach stretches the opening at the top and increases internal pressure, making it easier for acid to escape. Eating smaller, more frequent meals throughout the day keeps your stomach from overfilling. If your biggest meal is currently dinner, try shifting more of your calories to lunch.
Sleep Position Matters More Than You Think
Nighttime reflux tends to be worse than daytime reflux because you lose the help of gravity. Two adjustments can make a significant difference.
First, elevate the head of your bed by about six inches using blocks under the bedposts or a foam wedge under your mattress. Simply stacking pillows doesn’t work as well because it bends your body at the waist, which can actually increase abdominal pressure.
Second, sleep on your left side. A study monitoring 57 people with chronic heartburn found that while side position didn’t change how often acid escaped into the esophagus, it dramatically affected how quickly that acid cleared. When participants slept on their left side, acid cleared much faster than when they slept on their back or right side. Faster clearance means less time your esophagus is exposed to acid, which translates to less pain and less tissue damage over time. The anatomy behind this is straightforward: your stomach curves to the left, so lying on that side keeps the junction between your esophagus and stomach above the pool of acid rather than submerged in it.
Weight and Abdominal Pressure
Excess weight around your midsection physically squeezes your stomach, pushing acid upward. Research measuring pressure inside the stomach found a direct correlation between waist circumference and internal gastric pressure, with a 15 mmHg difference between the smallest and largest waist sizes studied. That pressure difference is enough to meaningfully worsen reflux. Even wearing a tight belt or waistband can reproduce this effect; one study found that abdominal compression from a belt aggravated reflux primarily by impairing the esophagus’s ability to clear acid.
This means two practical things. In the short term, wearing looser clothing around your waist can reduce episodes. In the longer term, losing weight, particularly abdominal fat, is one of the most effective strategies for reducing chronic reflux. Even a modest loss of 5 to 10 percent of body weight often produces noticeable improvement.
A Simple Trick: Chewing Gum
Chewing sugar-free gum for 30 minutes after a meal is a surprisingly well-supported strategy. It stimulates saliva production, and each swallow of saliva helps wash acid back down into the stomach. A study from King’s College London measured esophageal acid exposure after meals and found that chewing gum cut the percentage of time the esophagus was acidic from 5.7% to 3.6%, a statistically significant reduction. It’s not a cure, but as a zero-risk add-on to other habits, it’s worth trying.
Over-the-Counter Medications
Three types of reflux medication are widely available without a prescription, and they work differently enough that choosing the right one depends on your situation.
- Antacids neutralize acid that’s already in your stomach. They work the fastest, often within minutes, but their effects are short-lived. They’re best for occasional, predictable heartburn, like after a heavy meal.
- H2 blockers reduce the amount of acid your stomach produces. They take about an hour to kick in, but the effect lasts four to ten hours. They’re a better option if you get reflux regularly and want prevention rather than rescue.
- Proton pump inhibitors (PPIs) suppress acid production more powerfully and for longer than H2 blockers. The tradeoff is speed: it can take one to four days of daily use before you feel the full benefit. PPIs are designed for frequent reflux, not the occasional episode.
For people who need long-term PPI therapy, a common worry is stomach cancer risk. A large 2025 study across five Nordic countries found no association between long-term PPI use and stomach cancer. That said, prolonged use has been linked to other concerns, including an increased risk of certain gut infections, reduced bone density, and impaired absorption of some vitamins and minerals. The practical takeaway is that PPIs are safe when you genuinely need them, but it’s worth periodically reassessing whether you still do, especially if lifestyle changes have improved your symptoms.
Symptoms That Need Medical Attention
Most acid reflux responds well to the strategies above. But certain symptoms suggest something more serious, such as damage to the esophagus or another condition entirely. These include difficulty swallowing or pain when swallowing, persistent vomiting, unexplained weight loss, loss of appetite, and chest pain. Vomit that contains blood or looks like coffee grounds, or stool that appears black and tarry, can indicate bleeding in the digestive tract. Any of these warrants a prompt visit to your doctor rather than continued self-management.