7-day acid reflux diet plan: what to eat and what to avoid

That burning, blistering sensation in your chest after you eat: you know what it is. Acid reflux affects around 1 in 5 adults in the UK¹, and for many it's not just an occasional annoyance. It disrupts sleep, kills appetite, and makes eating a pain not a pleasure. The good news is that an acid reflux diet plan can make a real difference, and this one will show you exactly where to start.

A few changes to what you eat and how you eat can significantly reduce the frequency and intensity of symptoms. This dietitian-reviewed guide covers the foods that help, the ones to cut out, and a 7-day meal plan to get you started.

What is acid reflux?

Acid reflux happens when stomach acid travels back up into your oesophagus, the tube connecting your mouth to your stomach. The result is a sour taste in your mouth or a burning sensation in your chest, commonly called heartburn.

When it happens occasionally, it's usually down to something you've eaten. When it's frequent - more than twice a week - it may be a sign of gastro-oesophageal reflux disease (GORD), a condition where the ring of muscle at the base of your oesophagus has weakened, allowing acid to leak upwards more freely.²

Persistent acid reflux is worth taking seriously. In rare cases, long-term GORD can be associated with changes in the lining of the oesophagus, so getting a diagnosis from your GP is important if symptoms aren't improving.³

What causes acid reflux?

Several factors can weaken the lower oesophageal muscle or increase stomach acid production. The most common include:

● Being overweight: Excess weight around the abdomen puts pressure on the stomach, pushing acid upwards. Research links obesity to a significantly higher risk of oesophageal adenocarcinoma when combined with frequent reflux symptoms.⁴

● High-fat diet: Fatty foods slow digestion and cause the stomach to produce more acid than usual.

● Smoking: Relaxes the muscle at the base of the oesophagus and impairs the oesophagus's ability to clear acid.

● Alcohol, coffee, and chocolate: All relax the lower oesophageal muscle, making acid more likely to travel upwards.

● Eating large meals or eating late: A full stomach puts pressure on the muscle. Eating within three hours of lying down is a well-established trigger.

● High cholesterol: Research suggests high cholesterol is linked to GORD.⁵ Managing your diet to address both is practical. For a cholesterol-healthy diet, try out our 7-day high cholesterol diet plan.

● Stress: Can worsen symptoms by increasing stomach acid production and altering gut motility.

What's the best diet for acid reflux?

A diet low in fat and high in fibre should help to reduce irritation. But rather than overhauling everything at once, start by removing your biggest triggers and replacing them with more gut-friendly alternatives. Keep a food diary for the first week. Everybody's triggers are different, and identifying yours will make the plan more effective.

Foods to eat

These foods are generally well-tolerated and can form the basis of an acid reflux diet plan:

● Oatmeal: Absorbs stomach acid and keeps you fuller for longer. A solid breakfast option.

● Lean protein: Chicken, turkey, and white fish are gentle on the stomach. Grilled or baked, not fried.

● Non-citrus fruits: Bananas, apples, pears, and melons. Citrus fruits (oranges, lemons, grapefruit) are common triggers.

● Green vegetables: Broccoli, asparagus, green beans, and spinach are all low in acid and high in nutrients.

● Wholegrains: Brown rice, wholegrain bread, and wholegrain pasta. High in fibre and easy on the digestive system.

● Ginger: Has natural anti-inflammatory properties and has long been used to ease nausea and digestive discomfort.

● Herbal teas: Ginger tea, liquorice root tea, and chamomile are all gentle alternatives to coffee.

Foods to avoid

These are the most commonly reported acid reflux triggers, but not every trigger affects everyone equally. Your food diary will help you identify which ones affect you the most.

● Spicy foods: Chilli, paprika, and hot sauces can irritate the oesophageal lining.

● Citrus fruits and tomatoes: Highly acidic and a common trigger for heartburn.

● High-fat foods: Fried food, fatty cuts of meat, full-fat dairy. These slow stomach emptying and increase acid production.

● Chocolate: Contains caffeine and a compound called theobromine, both of which can relax the lower oesophageal muscle.

● Alcohol: Relaxes the oesophageal muscle and directly irritates the gut lining.

● Coffee and caffeinated drinks: Stimulate acid production. Even decaf coffee can be a trigger for some people.

● Mint: Peppermint and spearmint can relax the lower oesophageal muscle, making symptoms worse despite the reputation as a digestive aid.

● Carbonated drinks: The bubbles increase stomach pressure and can cause acid to push upwards. Drink alternatives worth trying include ginger tea, coconut water, kombucha (in small amounts), and green tea. For flavour, swap chilli and paprika for basil, oregano, thyme, and parsley, none of which are off the table.

Lifestyle tips that work alongside your diet

Diet changes alone won't always be enough. These habits make a meaningful difference too:

● Eat smaller, more frequent meals: A full stomach pushes harder against the lower oesophageal muscle. Three large meals become five smaller ones.⁶

● Don't eat within three hours of bed: Lying down with a full stomach is one of the most common triggers for night-time heartburn.

● Elevate your head when sleeping: Raising the head of your bed by 15-20cm (using bed risers, not extra pillows, which can strain your neck) reduces night-time reflux. Pillows alone aren't enough.

● Maintain a healthy weight: Reducing abdominal pressure is one of the most effective long-term interventions. Numan's Weight Loss Programme can help if weight is a factor.

● Avoid tight clothing: Waistbands and belts that compress the abdomen increase stomach pressure.

● Quit smoking: Smoking is a direct irritant to the oesophagus and relaxes the protective muscle at its base.

7-day acid reflux diet plan:

The plan below is built around foods that are low in acid and fat, easy to digest, and satisfying enough to stick to. Use it as a starting point and swap in alternatives from the "foods to eat" list above if anything doesn't suit you.

What a typical day looks like

Each day follows the same principle: low acid, low fat, moderate portion sizes, nothing within three hours of bed.

● Breakfast: Porridge with banana and honey, or scrambled eggs on wholegrain toast. Both are filling and easy on the stomach.

● Lunch: Grilled chicken or turkey with brown rice and steamed green vegetables. Avoid sauces and stick to olive oil, herbs, and lemon-free dressings.

● Dinner: Baked white fish or lean chicken with sweet potato and broccoli. Keep portions moderate.

● Snacks: A small apple or pear, plain oatcakes, or a small handful of nuts (almonds work well). Avoid crisps, biscuits, and chocolate.

● Drinks: Water, ginger tea, or chamomile tea throughout the day. Avoid coffee, fizzy drinks, and alcohol entirely during the 7 days.

Acid reflux myths

A number of popular home remedies circulate online without much clinical evidence behind them. It's worth knowing what the research actually says.

Apple cider vinegar

Apple cider vinegar is often cited as a home remedy for acid reflux, but there's limited clinical evidence to support this. In theory, an acidic substance consumed before meals might worsen symptoms for many people. If you're considering it, speak to a doctor first.

Peppermint tea

Peppermint is often assumed to be soothing for digestion, but research suggests it can actually relax the lower oesophageal muscle, potentially making acid reflux worse. The evidence is mixed and every person's response varies but it's worth avoiding during your 7-day plan to see if it makes a difference.⁷

Milk

While milk can temporarily neutralise stomach acid, the fat and protein it contains stimulate more acid production soon after. It may provide brief relief but isn't a reliable long-term remedy.

When to see a doctor

Dietary changes can significantly improve symptoms, but they're not a substitute for medical advice when symptoms are:

● Happening more than twice a week

● Not improving after two to four weeks of dietary changes

● Accompanied by difficulty swallowing, unexplained weight loss, or vomiting blood

● Causing pain severe enough to disrupt your sleep or daily life

These symptoms warrant proper investigation. Persistent acid reflux can sometimes indicate underlying conditions that need treatment beyond diet alone. Your GP or a private doctor can assess your symptoms and, if needed, recommend prescription-strength options such as proton-pump inhibitors (PPIs) or further tests.

The numan take

If you regularly experience acid reflux, you’re probably at your wits’ end. It’s uncomfortable. Sometimes painful. But good news - it’s very treatable.

If your symptoms are persistent, don't sit on it. They're worth investigating, both to rule out underlying causes and to access treatments that work when diet changes alone aren't enough.

References

^{1 Nirwan JS, Hasan SS, Babar ZU, Conway BR, Ghori MU. Global prevalence and risk factors of gastro-oesophageal reflux disease (GORD): systematic review with meta-analysis. Sci Rep. 2020;10(1):5814.}

^{2 NHS Inform. Gastro-oesophageal reflux disease (GORD) [Internet]. Edinburgh: NHS Inform; 2023 [cited 2026 Jul 31]. Available from: https://www.nhsinform.scot/illnesses-and-conditions/stomach-liver-and-gastrointestinal-tract/gastro-oesophageal-reflux-disease-gord}

^{3 National Health Service. Oesophageal cancer — symptoms [Internet]. London: NHS; [cited 2026 Jul 31]. Available from: https://www.nhs.uk/conditions/oesophageal-cancer/symptoms/}

^{4 Whiteman DC, Sadeghi S, Pandeya N, Smithers BM, Gotley DC, Bain CJ, et al. Combined effects of obesity, acid reflux and smoking on the risk of adenocarcinomas of the oesophagus. Gut. 2008;57(2):173–80.}

^{5 Shapiro M, Green C, Bautista JM, Dekel R, Risner-Adler S, Whitacre R, et al. Assessment of dietary nutrients that influence perception of intra-oesophageal acid reflux events in patients with gastro-oesophageal reflux disease. Aliment Pharmacol Ther. 2007;25(1):93–101.}

^{6 Jarosz M, Taraszewska A. Risk factors for gastroesophageal reflux disease: the role of diet. Prz Gastroenterol. 2014;9(5):297–301.}

^{7 Kahrilas PJ. GERD pathogenesis, pathophysiology, and clinical manifestations. Cleve Clin J Med. 2003;70 Suppl 5:S4–19.}