Why Antacids Aren't Fixing Your Reflux
By Thomas Easley
You’ve had heartburn for months. Maybe years. You take antacids or a prescription acid blocker and it helps some, but it never quite goes away. Or it comes back the moment you stop the medication.
Here’s why: the problem usually isn’t too much acid. The problem is a valve that isn’t closing properly, and fixing the wrong thing means the real issue never gets addressed.
The valve nobody talks about
At the bottom of your esophagus, right where it meets your stomach, there’s a ring of muscle called the lower esophageal sphincter. Its job is simple: open to let food into your stomach, close to keep stomach acid from splashing back up.
When that valve doesn’t close right, acid reaches tissue that has no protection against it. Your stomach lining is built to handle acid. Your esophagus is not. That’s why it burns.
The question isn’t “why do I have so much acid?” The question is “why isn’t the valve doing its job?”
What’s actually happening in most cases
In about 65% of reflux cases, the problem is something called transient lower esophageal sphincter relaxations, meaning the valve is opening when it shouldn’t. And the most common trigger for that is pressure from below.
Here’s the cascade that explains most chronic reflux:
When digestion is sluggish (from stress, age, medications, or diet), food sits too long in the small intestine. Bacteria ferment that food and produce gas. That gas creates pressure. The pressure pushes up on the stomach and forces the valve open. Acid goes where it shouldn’t.
This is why antacids provide incomplete relief. They neutralize some acid, but they don’t address the gas and pressure that keep forcing the valve open. They’re mopping the floor while the faucet runs.
Why this matters for you specifically
If your reflux comes with bloating, especially bloating that shows up 30 minutes to two hours after eating, there’s a good chance the gas-pressure mechanism is driving it. Pay attention to whether certain foods make the bloating and reflux worse, particularly starchy or sugary foods that ferment easily.
If you’ve been on acid-blocking medications for a long time, there’s another wrinkle. Your stomach acid does real work. It kills bacteria in food, activates protein-digesting enzymes, and triggers the release of bile and pancreatic enzymes downstream. Suppressing acid for months or years can actually make the bacterial overgrowth worse, which makes the gas worse, which makes the reflux worse. It becomes a cycle.
What you can try this week
Eat slower and chew more. This sounds too simple to matter, but digestion starts in your mouth. Rushed eating means bigger food particles hitting your stomach, which means slower processing, which means more time for fermentation and gas production. Sit down. Chew each bite until it’s liquid. Put your fork down between bites.
Stop eating 3-4 hours before bed. Lying down with a full stomach is asking for reflux. Gravity is your friend; use it. If nighttime reflux is your main problem, elevate the head of your bed 6-8 inches with blocks under the bedposts. Propping up with pillows doesn’t work as well because it bends you at the waist, which increases abdominal pressure.
Sleep on your left side. The anatomy of your stomach means left-side sleeping keeps the valve above the level of stomach acid. Right-side sleeping does the opposite. This is a free intervention that makes a measurable difference.
Space your meals. Your digestive tract has a cleaning wave, a sweeping contraction that moves debris and bacteria through between meals. It only operates when you’re not eating. Constant snacking shuts it off. Try eating three meals with at least 3-4 hours between them, and let the cleaning wave do its work.
Manage stress around meals. Your nervous system runs your digestion. When you’re stressed, your body diverts resources away from digesting food. Motility slows, secretions decrease, everything backs up. Eating while stressed, rushing through lunch at your desk, eating in the car: all of it makes digestion worse. Three slow breaths before eating costs nothing and changes the physiological environment your food lands in.
When to see a doctor
Reflux that doesn’t respond to lifestyle changes within a few weeks deserves medical evaluation. Difficulty swallowing, painful swallowing, unexplained weight loss, or chest pain that could be cardiac: these need professional assessment, not a blog post. Chronic unmanaged reflux can cause real tissue changes over time, so don’t just live with it indefinitely.
The real takeaway
Most reflux is your digestive system responding to how you eat, when you eat, and what’s happening in your nervous system while you eat. That’s good news, because it means the levers for change are largely in your hands.
The body isn’t broken. It’s adapting to conditions that aren’t working. Change the conditions, and the body often figures out the rest.
We cover digestive health in depth during Week 2 of our Building Health: Foundations series — every Tuesday at 7:00 PM at Three Notch Community Health. If reflux or other digestive issues are affecting your quality of life, this gives you the framework for understanding what’s happening and what to do about it. $49/month, jump in anytime.
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We cover topics like this every Tuesday at 7:00 PM in our Building Health series. It's included in your membership — $49/month for health education and two movement classes per week.
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