Exercise and Acid Reflux: What Helps and What Hurts

Exercise and acid reflux have a complicated relationship — and the honest answer is that one can either help or hurt the other depending entirely on what you’re doing and when. If you’ve ever found yourself getting heartburn mid-run, or wondered whether your gym routine is making your reflux worse, you’re asking exactly the right question.

The short version: moderate, low-impact exercise is genuinely beneficial for acid reflux — it supports weight management, reduces intra-abdominal pressure over time, and improves overall gut motility. But certain types of exercise, particularly high-intensity or abdominal-heavy workouts, can trigger or worsen reflux in the moment by forcing stomach contents up against a lower oesophageal sphincter (LES) that struggles under pressure. The same applies to silent reflux and LPR — but with an added layer of complexity around pepsin deposition that makes exercise choices even more important.

The key message is this: don’t stop exercising. Modify it.

Key Takeaways

• Exercise both helps and hurts acid reflux depending entirely on type and timing — there is no single answer.
• The two main mechanisms behind exercise-induced reflux are increased intra-abdominal pressure (from moves like sit-ups and bending) and bouncing/high-impact movement (from running and jumping).
• A major meta-analysis of 33 studies found that 150 minutes of physical activity per week was associated with a 72% lower risk of developing GERD — the protective effect was strongest in older adults and smokers.
• Among athletes, weightlifters experienced the most heartburn and acid exposure, followed by runners, then cyclists.
• Dr. Jamie Koufman, the pioneering LPR specialist, identifies sit-ups, planking, downward-facing dog, jumping jacks, aerobics, and boxing as the exercises to avoid — and rates walking and elliptical training as the safest overall options.
• Almost any form of exercise can be made reflux-safer by omitting the specific moves that raise intra-abdominal pressure — the goal is modification, not avoidance.
• For LPR and silent reflux specifically, even small exercise-triggered reflux events can deposit pepsin in the throat — making the empty-stomach and upright-posture rules more critical, not less.
• Timing matters significantly: exercising within two hours of eating dramatically increases reflux risk regardless of exercise type.

Why Exercise and Acid Reflux Have a Complicated Relationship

To understand why exercise affects reflux, you need to understand the LES — the lower oesophageal sphincter. This muscular valve sits between your stomach and oesophagus and is supposed to stay closed unless you’re swallowing. When it relaxes inappropriately or comes under pressure, stomach contents — including acid and the digestive enzyme pepsin — can travel upward.

Exercise creates two different types of stress on this system. First, any movement that raises intra-abdominal pressure — crunches, planking, heavy lifting, bending over — physically compresses the stomach and can push its contents upward against the LES. Second, bouncing and high-impact movements physically jostle the stomach contents, creating the conditions for reflux even in people who don’t have GERD. These two mechanisms are largely independent, which is why the type of exercise matters so much — and why a brisk walk affects reflux very differently from a set of weighted squats.

Can Exercise Cause Acid Reflux?

Yes — particularly with high-intensity or abdominal-heavy exercise. This is so well-established that the term exercise-induced acid reflux is used clinically, and it can occur even in people without underlying GERD.

The relationship is proportional to intensity. Studies measuring oesophageal pH during different types of exercise consistently show that higher-intensity workouts produce more and longer reflux episodes. Running causes significantly more reflux than cycling; heavy weightlifting causes more than running. The Valsalva manoeuvre — the forceful bracing that naturally happens when lifting heavy — creates a sharp spike in intra-abdominal pressure that directly compromises the anti-reflux barrier [Collings KL et al., Medicine & Science in Sports & Exercise, 2003].

Timing compounds everything. Exercising within two hours of a meal significantly raises reflux risk, because a full stomach under physical pressure is far more likely to push its contents upward. Training in a fasted or near-fasted state is consistently better tolerated, particularly for anyone who already has GERD or LPR.

Does Exercise Help Acid Reflux?

At a population level, regular physical activity is genuinely protective against GERD — and the data is striking. A meta-analysis of 33 studies covering 242,850 participants found that people who met the recommended 150 minutes of physical activity per week had a 72% lower risk of developing GERD compared to sedentary individuals. The protective effect was most pronounced among older adults and smokers — two groups for whom reflux is often more entrenched [Yu C et al., Journal of Sport and Health Science, 2024].

This makes sense mechanically. Regular moderate exercise supports healthy weight, and excess abdominal weight is one of the most consistent risk factors for GERD — it puts constant upward pressure on the stomach. Exercise also improves gastric motility, reduces stress (a known reflux amplifier), and strengthens the respiratory muscles in ways that indirectly support the anti-reflux barrier.

The nuance, then, is this: regular low-to-moderate exercise helps reflux long-term, while certain forms of intense exercise can trigger it acutely. Managing both sides of that equation is where the practical work is.

Exercises to Avoid With Acid Reflux

Dr. Jamie Koufman — the clinical pioneer behind much of what we understand about LPR and reflux — is direct on this. There are exercises she describes as ones to absolutely avoid, because they consistently spike intra-abdominal pressure or create problematic bouncing of the stomach. The exercises she identifies as most problematic are:

• Sit-ups and crunches — the classic abdominal exercises directly compress the stomach
• Planking — sustained core compression with sustained LES pressure
• Downward-facing dog — an inversion that reverses gravity’s protective effect on reflux
• Jumping jacks and high-impact aerobics — bouncing jostles stomach contents with each repetition
• Boxing — combines impact, core tension, and high intensity
• Heavy deadlifts and heavy squats — maximal Valsalva = maximal intra-abdominal pressure spike
• Bent-over cycling (racing position) — removes the benefit of upright posture while maintaining high intensity
• Gymnastics and inversions — any prolonged upside-down or forward-folded position

The important qualifier, which Koufman is also clear on: these are ratings of the exercises as typically performed. Many of them can be made reflux-safer by modifying the specific moves that cause problems. Yoga isn’t inherently bad for reflux — the inversions and deep forward folds are. Understanding that distinction is more useful than simply avoiding entire exercise categories.

Best Exercise for Acid Reflux

The exercises that work best for acid reflux are those that keep you largely upright, avoid heavy abdominal compression, and don’t involve persistent bouncing or high impact. Koufman rates walking and elliptical training as the top choices, and the reasoning is straightforward — both maintain upright posture, both are low-impact, and neither creates the pressure spikes that trigger reflux.

Other well-tolerated options include:

• Swimming — low-impact with horizontal positioning that most people tolerate well
• Light jogging — tolerated by many if kept below the intensity threshold where reflux begins
• Stationary cycling (upright position) — much better than bent-over road cycling
• Tai chi and gentle stretching — minimal pressure and calming for the nervous system
• Light resistance training — tolerated well when weights are light enough to avoid Valsalva, and lying-down exercises are swapped for standing variations
• Water aerobics — combines buoyancy with low-impact movement

For those who want to maintain a fuller exercise programme, the approach that works is identifying which specific movements within your routine are causing problems and substituting reflux-safe alternatives — rather than abandoning the whole workout.

Running and Acid Reflux

Running is one of the most common exercise-related reflux triggers, and it affects elite athletes just as much as casual joggers. The bouncing motion of running physically jostles stomach contents with every stride — particularly when running at pace, where the impact is harder. Research comparing runners, cyclists, and weightlifters found runners experienced significant reflux and associated symptoms during training, worse when running in a fed state than fasted [Collings KL et al., Medicine & Science in Sports & Exercise, 2003].

If running is your exercise of choice, the modifications that make the most practical difference are: running on an empty stomach, allowing at least two hours after eating before heading out, using Gaviscon Advance before running if symptoms are significant, drinking alkaline water during the run, and chewing gum — which stimulates saliva and helps clear any acid from the oesophagus. Reducing pace and impact also helps — a slower, lighter stride produces less reflux than a pounding, high-intensity run.

Weightlifting and Acid Reflux

Of all exercise types studied, weightlifters consistently experience the most heartburn and oesophageal acid exposure. In the Collings et al. study, weightlifters showed significantly higher oesophageal acid exposure compared to both runners and cyclists — and the mechanism is clear: heavy lifting requires the Valsalva manoeuvre, which creates dramatic spikes in intra-abdominal pressure that force stomach contents against the LES.

Bending movements compound this further. Deadlifts, rows, and bent-over exercises remove the postural advantage of being upright, combining pressure with an unfavourable angle for reflux.

None of this means you have to give up resistance training. Koufman’s guidance is that if you can perform a lift using light enough weight that you can maintain a conversation throughout — you’re below the Valsalva threshold and the exercise is likely manageable. Swapping floor-based exercises for standing or seated variations, avoiding heavy compound lifts in a fed state, and omitting bent-over movements are the modifications that make the most difference.

Exercise and Silent Reflux (LPR)

For those of us dealing with LPR or silent reflux, exercise considerations go beyond heartburn. With LPR, the refluxate travels higher — reaching the larynx and throat — and even small reflux events during exercise can deposit pepsin on laryngeal tissue. That pepsin then sits on the throat and can be reactivated repeatedly by anything acidic throughout the rest of the day. Understanding how to neutralise pepsin in the throat is relevant here precisely because exercise can create multiple pepsin-deposition events in a single session.

The upright-posture rule matters even more for LPR than for standard GERD. The upper oesophageal sphincter (UES) — the valve that guards the throat — is more vulnerable when the body is inverted or heavily compressed. Yoga inversions and deep forward folds carry a specific risk for LPR sufferers because they bypass the UES’s protective role entirely.

The practical implications for LPR: always exercise on an empty or near-empty stomach, prioritise upright and low-impact movements, avoid all inversions, and consider Gaviscon Advance before higher-intensity sessions as a protective barrier. The LPR diet that supports throat healing during the day is also more effective if it isn’t being undone by exercise-induced pepsin events.

Practical Tips for Exercising With Acid Reflux

• Wait two hours after eating before exercising — or better still, train in the morning before eating
• Stay upright throughout your workout where possible — swap floor-based exercises for standing or seated alternatives
• Drink alkaline water during exercise to help buffer any reflux reaching the throat
• Chew gum during and after exercise — stimulates saliva production which neutralises oesophageal acid
• Take Gaviscon Advance before high-intensity sessions — the alginate raft creates a physical barrier against reflux
• Wear loose clothing — tight waistbands increase intra-abdominal pressure even at rest
• Reduce intensity gradually — find your personal reflux threshold rather than stopping exercise altogether
• Cool down properly — lying down immediately after exercise is a reliable way to trigger reflux; stay upright for 30 minutes post-workout

Frequently Asked Questions

Is it okay to exercise if I have acid reflux?

Yes — and it’s important that you do. Regular moderate exercise is protective against GERD long-term. The key is choosing the right type of exercise (low-impact, upright, not immediately after eating) and modifying specific movements that spike intra-abdominal pressure. Stopping exercise entirely for acid reflux reasons is rarely the right approach.

Why do I get heartburn when I exercise?

Exercise-induced heartburn happens when physical activity raises pressure inside the abdomen, forces the stomach contents against the lower oesophageal sphincter, or jostles the stomach through high-impact bouncing. The higher the intensity and the fuller your stomach, the more likely it is to occur. It can happen even in people without diagnosed GERD.

What is the best exercise for acid reflux?

Walking and elliptical training are consistently rated as the best options by reflux specialists including Dr. Jamie Koufman, because both maintain upright posture, are low-impact, and avoid abdominal compression. Light resistance training, swimming, upright stationary cycling, and tai chi are also well-tolerated by most reflux sufferers.

Does running make acid reflux worse?

Running can trigger or worsen reflux, primarily because of the repetitive high-impact bouncing motion. It is worse when running after eating. Practical modifications include running on an empty stomach, reducing pace and impact, using Gaviscon Advance before running, and staying well-hydrated with alkaline water. Many people with reflux continue running successfully with these adjustments.

Is weightlifting bad for acid reflux?

Heavy weightlifting is associated with the highest oesophageal acid exposure of any exercise type, because of the Valsalva manoeuvre involved in maximal lifting. However, light-to-moderate resistance training performed with weights that allow you to maintain normal breathing throughout is much better tolerated, and can usually be continued with modification.

Can yoga make acid reflux worse?

Some yoga poses make reflux significantly worse — specifically downward-facing dog, deep forward folds, inversions, and poses that compress the abdomen. For LPR sufferers in particular, inversions carry the added risk of bypassing the upper oesophageal sphincter. However, gentle yoga focused on stretching, breathing and relaxation without inversions or abdominal compression is well-tolerated and can be beneficial.

Should I exercise with LPR or silent reflux?

Yes, but the rules matter even more with LPR. Because even small reflux events during exercise can deposit pepsin on the larynx, exercising on an empty stomach, staying upright throughout, avoiding inversions, and using Gaviscon Advance before sessions are all more important with LPR than with standard GERD. Prioritise walking and elliptical training as your baseline, and build from there with caution.

Conclusion

The relationship between exercise and acid reflux is genuinely nuanced — but the core principle isn’t complicated. Regular, moderate physical activity is one of the most consistently beneficial things you can do for your reflux long-term. The research shows clearly that active people are significantly less likely to develop GERD, and that trend holds across almost every population studied.

The challenge is in the short term: certain types of exercise, particularly those involving abdominal compression or high-impact bouncing, can trigger reflux acutely. The solution isn’t to stop exercising — it’s to understand which specific movements are causing problems and make targeted modifications. As Dr. Koufman has consistently emphasised, almost every form of exercise can be adapted to a reflux-safer version by excluding the moves that raise intra-abdominal pressure.

If you have LPR or silent reflux rather than standard heartburn, the stakes around exercise choices are a little higher — because exercise-triggered reflux events deposit pepsin in the throat, not just the oesophagus. Getting the dietary foundation right alongside your exercise adjustments matters here. The Wipeout Diet Plan covers both the dietary and lifestyle dimensions of managing LPR in depth — including how to structure your day to minimise pepsin exposure across all activities, not just meals. And for a practical daily reference to keep your food choices on track, the Wipeout Essential Reflux Food List gives you the pH values of common foods and drinks at a glance.

Start with walking and build from there. Most people find a version of exercise they enjoy that doesn’t trigger their reflux — it just takes a bit of experimentation and the willingness to modify rather than quit.

Research Sources

• A meta-analysis of 33 studies covering 242,850 participants found that meeting the recommended 150 minutes of physical activity per week was associated with a 72% lower risk of developing GERD; the protective effect was strongest among older adults and smokers [Yu C et al., Journal of Sport and Health Science, 2024].
• Among conditioned athletes, weightlifters experienced the most heartburn and highest oesophageal acid exposure during exercise, followed by runners, then cyclists — with acid exposure significantly higher when training in a fed versus fasted state [Collings KL et al., Medicine & Science in Sports & Exercise, 2003].
• Clinical guidance from Dr. Jamie Koufman, LPR specialist, identifies sit-ups, planking, downward-facing dog, jumping jacks, aerobics and boxing as exercises to avoid; she rates walking and elliptical training as the best options for reflux sufferers and recommends modification over avoidance for most exercise types [Koufman JA, jamiekoufman.com, 2023].