Acidity Home Remedies: What Actually Works for Heartburn and Reflux

"Cold milk, jeera water and saunf are part of how Indian families care for each other, and I do not ask anyone to throw them out. But they are traditional comfort, not proven treatment. If you need a remedy every single day, that is your body asking for a proper check-up." - Dt. Trishala Goswami, MSc Clinical Nutritionist, Diabetes Educator

Dt. Trishala Goswami, MSc Clinical Nutritionist · Diabetes Educator · Certified Nutrigenomics Specialist · Last Updated: October 2026

The short answer: the acidity home remedies with the best evidence are not in the spice box. They are habits: finish dinner 2 to 3 hours before bed, eat smaller meals, lose weight if you are overweight, raise the head of your bed for night symptoms and sleep on your left side. Cut back on the triggers that bother you personally. Cold milk, jeera, saunf and ajwain are traditional, not proven.

In many Indian homes, "acidity" means a burning chest after a heavy dinner, and everyone has a nuskha for it. This guide separates what research supports from what is traditional, and explains when to see a doctor.

What acidity actually is

Stomach acid is normal and helps digest food. The trouble starts when stomach contents flow back up into the food pipe (oesophagus). The US National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) calls this gastroesophageal reflux. Occasional reflux is common. When it is frequent, bothersome or causes damage, it is called GERD (gastroesophageal reflux disease).

A ring of muscle at the bottom of the food pipe, the lower oesophageal sphincter, normally keeps stomach contents down. NIDDK explains that GERD can develop when this muscle is weak or relaxes at the wrong time. Overweight, pregnancy, smoking and a hiatus hernia make that more likely.

The NHS lists the typical symptoms: heartburn (a burning feeling in the middle of the chest), a sour taste in the mouth, a recurring cough or hiccups, a hoarse voice, bloating and feeling sick. They are often worse after eating, lying down or bending over.

How common is it in India? The Indian Society of Gastroenterology's consensus on GERD (Bhatia et al., 2019) puts prevalence at 7.6% to 30%, below 10% in most population studies. A survey of more than 6,000 adults in Vellore, Tamil Nadu, found GERD in 8.2%, more often in towns (11.1%) than villages (5.1%) (Chowdhury et al., 2019).

If your "acidity" is really a tight, gassy stomach rather than a burning chest, see our bloating after meals troubleshooting guide.

Common Indian triggers: evidence vs individual

Most acidity advice hands you a long list of banned foods. The American College of Gastroenterology's 2022 GERD guideline (Katz et al.) suggests avoiding "trigger foods", but as a conditional recommendation based on low-quality evidence. A review in Archives of Internal Medicine found that tobacco, alcohol, chocolate and high-fat meals lower sphincter pressure in the lab, yet found no published evidence that dietary changes improved GERD (Kaltenbach et al., 2006).

Triggers are personal, and NIDDK says they vary from person to person. Here is the evidence on the usual Indian suspects.

Check your medicines too. The NHS notes that painkillers such as ibuprofen can cause heartburn, and NIDDK lists other medicine groups. Never stop a prescribed medicine on your own. Ask your doctor or pharmacist instead.

Keep a two-week diary. For one week, note meals, chai, bedtime and symptoms scored 1 to 10. In week two, change one thing, such as the late dinner or the third chai, and see whether the score drops.

Meal timing and lying down after meals

In many Indian homes, dinner is at 9.30 or 10 pm and bed follows soon after. This is where the evidence is clearest. In a Japanese study of 147 GERD patients and 294 matched controls, going to bed less than 3 hours after dinner carried 7.45 times the odds of GERD compared with waiting 4 hours or more, after adjusting for smoking, drinking and BMI (Fujiwara et al., 2005). That design cannot prove cause, but the guidelines line up:

• The ACG suggests avoiding meals within 2 to 3 hours of bedtime.
• The NHS advises not eating within 3 to 4 hours of bed, eating smaller and more frequent meals, and avoiding clothes tight around the waist.
• NICE guidance CG184 says having your main meal well before bed may help some people.

In practice: if bedtime is 11 pm, finish dinner by 8 to 8.30 pm. If work makes that impossible, make lunch the main meal, have a solid evening snack such as sprouts chaat, and keep dinner small: a katori of dal, one roti and sabzi. Stay upright after eating.

Weight, raising the head of the bed and left-side sleeping

These three have more evidence behind them than any food rule.

Weight. Weight loss for people who are overweight is the ACG's strongest lifestyle recommendation (strong, moderate-quality evidence). In the US Nurses' Health Study, the odds of frequent reflux rose steadily with BMI (Jacobson et al., 2006). In Norway's HUNT study of 29,610 adults, weight loss was linked to fewer reflux symptoms, more so with larger losses (Ness-Jensen et al., 2013). Our BMI calculator uses WHO Asia-Pacific cut-offs. Aim for slow, steady loss, not crash diets.

Raising the head of the bed. The ACG suggests it for night-time symptoms, NICE says it may help some people, and the AGA's 2022 clinical practice update (Yadlapati et al.) calls it useful, along with avoiding meals within 3 hours of bedtime, for people whose symptoms come after meals or during sleep. In a trial at the Sher-i-Kashmir Institute of Medical Sciences, Srinagar, 20 people with night-time reflux slept with the bed head raised on a 20 cm block. Acid exposure and heartburn scores fell, and sleep improved in 65% (Khan et al., 2012).

1. Put sturdy wooden blocks or bricks under the legs at the head end to raise it by 10 to 20 cm, as the NHS suggests.
2. Or use a foam wedge under the mattress.
3. Do not just stack pillows. The NHS says extra pillows can increase pressure on your stomach.

Sleeping on your left side. The ACG guideline's table of lifestyle measures rates the evidence for left-side sleeping as "unequivocal" and notes that lying on the right side increases night-time reflux. A Dutch study tracking sleep position alongside pH monitoring in 57 patients found the least acid exposure, and the fastest clearance, on the left side (Schuitenmaker et al., 2022).

Acidity home remedies: traditional vs evidenced

None of these has good evidence for reflux. If one helps and is safe, keep it as an add-on to the habits above. Needing a remedy every day is a reason to see a doctor.

What to eat in acidity: a calmer Indian day

There is no single acidity diet. Aim for smaller meals, less fat at night and an early dinner, using foods you already eat.

If acidity comes with loose motions, constipation or cramps, read our IBS diet plan for India. If bloating starts soon after eating, our guide to SIBO and Indian diets may fit better.

For readers abroad: if shift work in the UK, US, Canada, Australia, the UAE or Singapore pushes dinner late, use the bigger-lunch, smaller-dinner pattern. Saunf is sold as fennel seeds and ajwain as carom seeds at Indian grocers, and bed risers at most home stores. The NHS suggests seeing a pharmacist if heartburn keeps coming back.

Antacids and PPIs: a brief word

Antacids, alginates and acid-reducing medicines such as proton pump inhibitors (PPIs) exist. The NHS says pharmacy antacids and alginates ease symptoms in the short term but should not be used regularly for long periods. Choices and doses belong with your doctor or pharmacist.

If you have taken a PPI for a long time, ask your doctor to review it. NICE recommends an annual review for people on long-term treatment, with a try at stepping down or stopping where appropriate. The ACG recommends the lowest effective dose. Do not stop a prescribed medicine on your own.

Red flags: when acidity needs a doctor

These signs, drawn from the NHS, NHS indigestion advice, NIDDK and NICE guidance NG12, mean you should see a doctor rather than try another remedy:

• Heartburn most days for 3 weeks or more

• Difficulty swallowing, or food that feels stuck
• Weight loss you cannot explain
• Vomiting that keeps happening
• Blood in your vomit, vomit that looks like coffee grounds, or black, tarry or dark red stools: get medical help the same day, and go to an emergency department if the bleeding is heavy or you feel faint
• Symptoms that do not improve with lifestyle changes or pharmacy medicines
• Age 55 or over with weight loss plus reflux, indigestion or upper tummy pain. NICE recommends a prompt specialist referral in this situation so the cause can be checked.

Get emergency help (112 in India, 999 in the UK, 911 in the US and Canada, 000 in Australia) for chest pain that is sudden, does not go away, or comes with sweating, feeling sick, light-headedness or breathlessness. The NHS lists heartburn as one cause of chest pain but warns against diagnosing it yourself.

Safety notes

• Pregnancy: the NHS pregnancy guidance suggests small, frequent meals, not eating within 3 hours of bed, propping up your head and shoulders and sleeping on your left. Tell the pharmacist you are pregnant, as some antacids are not suitable. The NCCIH says oral aloe may be unsafe in pregnancy, so skip aloe vera juice.
• Iron and folic acid: the NHS advises not taking antacids within 2 hours of these supplements, as they can reduce absorption.
• Kidney disease or regular medicines: ask your doctor before using antacids or herbal remedies often.
• Allergies: if a remedy causes swelling, rash or breathing trouble, stop it and seek help.

For a wider picture of digestive warning signs, see Gut Health 101: signs your digestion needs help.

This article is general nutrition guidance and is not a substitute for medical care. For diagnosis and medicines, consult your doctor. For personalised nutrition support, book a consultation with Dt. Trishala Goswami.

Related reading

• Bloating after meals: a dietitian's troubleshooting guide
• Gut Health 101: signs your digestion needs help
• IBS diet plan for India
• SIBO and Indian diets: what to eat and avoid
• Portion control the Indian way

Living with acidity most weeks? Book a consultation with Dt. Trishala Goswami for an Indian meal plan built around your triggers, work hours and dinner time, working alongside your doctor. Online consultations for clients in India and abroad. You can also explore our Gut Health program.