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CL Answer

Which supplements make acid reflux worse? I take many and think some are causing heartburn. Are there any supplements that help treat acid reflux?

Find out which supplements can cause or worsen acid reflux, nausea and GERD, including vitamin B6, arginine, and CoQ10.

Supplements Making Acid Reflux Worse -- Man with acid reflux pain

Clinical Update

12/15/2018

Enzymes for Indigestion

Will taking digestive enzymes reduce indigestion? Although not all studies have shown a benefit, a recent study suggested improvements with no adverse effects. For details, see the Digestive Discomfort section of the Digestive Enzyme Supplements Review. (Also see our top choices for enzyme supplements).

Clinical Update

12/16/2020

Ginger for Indigestion?

Can taking ginger extract help reduce symptoms of indigestion? Find out what a recent study showed in the What It Does section of the Ginger Supplements Review. Also, see our Top Picks for ginger supplements.

Clinical Update

8/07/2021

Curcumin for Indigestion?

How well does curcumin (from turmeric) improve digestive symptoms such as indigestion, diarrhea or constipation? See what a new study found in the What It Does section of our Turmeric and Curcumin Supplements & Spices Review. Also see our Top Picks among turmeric and curcumin products.

Clinical Update

8/10/2021

Probiotic for Indigestion?

Can taking a probiotic with a meal decrease indigestion, gas or stomach pain after eating? See what a new study found in the What They Do section of our Probiotic Supplements Review. Also, see our Top Picks among probiotics for gastrointestinal symptoms and other uses.

Clinical Update

10/26/2021

Curcumin for Indigestion?

Can curcumin (from turmeric) reduce symptoms of indigestion? See what a new study found in the What It Does section of our Turmeric and Curcumin Supplements & Spices Review. Also see our Top Picks among turmeric and curcumin products.

CL Answer

I take omeprazole (Prilosec), a proton pump inhibitor, to reduce stomach acid. Are there supplements I should avoid, or be taking, due to this drug?

Supplement interactions with proton pump inhibitor (PPI) drugs like omeprazole (Prilosec) and Nexium.

Product Review

Turmeric and Curcumin Supplements and Spices Review

Find the Best Turmeric and Curcumin Supplements & Spices. Big Differences Discovered Among Brands -- Little Curcumin In Some.

Turmeric and Curcumin Supplements and Spices Reviewed by ConsumerLab.com

CL Answer

What is Prelief? Does it really help for heartburn and/or bladder pain from acidic foods?

Prelief information, including what it has been claimed to do (such as helping with painful bladder, frequent urination, heartburn or indigestion from acidic foods), clinical evidence, and safety.

Product Review

Alginate Supplements Review (For Reflux)

See Our Top Pick Alginate Supplements For Reducing Symptoms of Gastroesophageal Reflux (GERD)

Alginate supplements reviewed by ConsumerLab.com

CL Answer

Is it true that low-carb or Mediterranean diets help for gastroesophageal reflux disease (GERD)?

Find out if a low-carb diet, such as the Mediterranean diet, or lifestyle changes help with gastroesophageal reflux disease (GERD).

Low-carb & Mediterranean Diets for GERD? -- Table with Mediterranean foods such as fish, olive oil, walnuts, vegetables

CL Answer

I read that turmeric may be a GI irritant. I have GI problems and wonder if I should avoid turmeric and curcumin?

Find out if turmeric/curcumin supplements can cause gastrointestinal irritability.

Is turmeric a stomach irritant? -- Turmeric Supplement

CL Answer

I have IBS and don't want to take medication if I can help it. I've heard that peppermint works for IBS, but is there good research to support this?

Information about using peppermint oil for irritable bowel syndrome (IBS), including clinical evidence, dosage, safety and more.

Peppermint Oil for IBS? -- Bottle of peppermint oil and capsules and peppermint leaf

Clinical Update

7/02/2019

Licorice Danger

A woman suffered a stroke after consuming a supplement for indigestion that contained a large dose of licorice. Get more details in our answer about licorice tea.

CL Answer

Which supplements are helpful to have when traveling? Any tips on how to best store supplements on trips?

Find out which vitamins & supplements can be helpful when traveling, including melatonin, ginger, and more, and find out how you can carry them with you.

Product Review

Digestive Enzyme Supplements Review

Big Differences in Strength Found Among Digestive Enzyme Supplements. CL Tests Reveal Which Are Best.

Digestive Enzyme Supplements Reviewed by ConsumerLab.com

Product Review

Ginger Supplements, Chews & Spices Review

Tests Reveal Best and Worst Ginger Supplements & Spices. Poor Quality and Lead Contamination Discovered in Some Products.

Ginger Supplements Reviewed By Consumerlab.com

CL Answer

A tea called Throat Coat made me lethargic and I was found to have low potassium. Is this a known problem? I was drinking 5 cups a day.

Throat Coat tea information, including licorice root content, potassium loss, and symptoms such as lethargy, increased blood pressure and fluid retention. ConsumerLab.com's answer explains.

Throat Coat Tea and Potassium Loss -- box of Throat Coat tea

CL Answer

Which supplements help reduce flatulence (gas), and are there any that make it worse?

Find out which supplements may help reduce flatulence (gas), and learn which supplements or foods may worsen symptoms of flatulence.

Older woman sitting on her bed and holding her stomach due to gas and bloating

Product Review

Olive Leaf Extract Supplements Review

Learn What Olive Leaf Does and the Best Brands

CL Answer

Is it true that calcium citrate increases the absorption of aluminum?

Find out how calcium citrate can impact the absorption of aluminum in your body and if this is a problem for your health.

Calcium Citrate Pills in Bottle

News Release

2/22/2022

Considering an Algae-based Supplement for Reflux? See What ConsumerLab Found

White Plains, New York, February 22, 2022 — Alginate supplements have been shown to be more effective than antacids in treating heartburn, indigestion, and other symptoms of GERD (gastrointestinal esophageal reflux disease).

Recalls & Warnings

3/30/2021

Real Water Alkaline Water Recalled for Possible Link to Liver Illness

On March 24, 2021, Real Water, Inc. recalled all sizes of Real Water bottled alkaline water because it may be linked to multiple cases of non-viral hepatitis that occurred in Las Vegas, NV in November of 2020.

News Release

9/27/2019

Best Turmeric and Curcumin Supplements and Spices Identified by ConsumerLab

White Plains, New York, September 27, 2019 — Turmeric and curcumin (the major compound in turmeric) are among the most popular supplements, promoted to reduce inflammation and help with conditions such as arthritis as well as indigestion and depression.

Recalls & Warnings

2/04/2020

Seller of Digestion Supplements Warned for Manufacturing Violations

On January 10, 2020, the FDA issued a warning letter to Marco Pharma International LLC, which found the company's  Absinthium Herbal Liquid Extract 100 ml (Absinthium), promoted for "digestive support", and other products, including S21 Multi Somaplex 100 ml (Multi Somaplex), ...

Recalls & Warnings

3/18/2021

Don't Drink Real Water Alkaline Water, FDA Warns After Reports of Liver Illness

On March 16, 2021, the FDA warned consumers not to drink or use Real Water bottled alkaline water while it investigates reports of hepatitis associated with the product.

News Release

5/15/2019

ConsumerLab Tests Reveal Big Differences in Digestive Enzyme Supplements

White Plains, New York, May 15, 2019 — Digestive enzyme supplements can help improve digestion and the absorption of nutrients, and may reduce symptoms of indigestion. But to work, they must provide a certain amount of enzyme activity.

News Release

4/04/2017

ConsumerLab.com Reveals Best and Worst Turmeric and Curcumin Supplements & Spices -- 31% Fail ConsumerLab.com Tests of Quality

White Plains, New York, April 4, 2017 — Turmeric and its key compound, curcumin, may be help reduce symptoms of inflammation in rheumatoid arthritis and osteoarthritis and may be helpful in treating depression, diabetes, and indigestion.

News Release

12/16/2013

What's Really in Turmeric Supplements and Spices? You May Not Want to Know -- 33% of Turmeric/Curcumin Supplements Fail ConsumerLab.com's Review; Filth Found in Spices

White Plains, New York, December 16, 2013 — Supplements containing the herb turmeric or its key constituent, curcumin, are popular treatments for inflammatory diseases. ConsumerLab.

News Release

2/16/2011

Some turmeric and curcumin supplements fail quality review -- ConsumerLab.com finds 20% of turmeric supplements selected for review deliver less than 15% of promised compounds

WHITE PLAINS, NEW YORK — FEBRUARY 16, 2011 — Supplements containing the herb turmeric or its key compound, curcumin, have become popular in the U.S. ConsumerLab.com cautioned today that two out of ten turmeric products recently selected for quality testing were found to provide only 7.

Recalls & Warnings

12/08/2009

Warning on Acai Berry Supplements Spiked with Drug

On December 8, 2009, Health Canada (the Canadian health agency) advised consumers not to use certain Acai Berry products after a large number of shipments of adulterated products were stopped at the border.