Why do fish oils make you burp

‘Your product said BURP-FREE! Yet I keep burping fish! You’re a bunch of liars!’

We’ve heard that once or twice.

Fishy burps.

It’s the #1 reason why people stop taking fish oil supplements.

According to GOED,

• 1 in 5 adults get fishy burps
• 11% won’t take it because of fishy burps
• 32 million adults will not believe a ‘No Fishy Burps’ label claim

Two people could take the same fish oil supplement. But one might burp in disgust while the other smells like a rose.

Burping does not necessarily mean the oil is bad. Nor is burping harmful in anyway.

Let’s assume you’re a burper. What can you do to prevent it?

There are lots of tricks – freezing the pills before taking it, taking it just before falling asleep, taking it with a meal etc. None of these tricks work well.

What works better is taking an enteric coated pill.

Enteric coating works. Most of the time anyway.

20% of you will burp if you take a regular (non-enteric) fish oil. With enteric coated pills, the number is under 5%. Shouldn’t it be zero? It should…but it isn’t.

How Enteric Coating Works (and why it sometimes fails)

Enteric coating is sprayed onto the outside of the pill. The coating will stay intact and prevent the pill from dissolving in the acidic environment of your stomach.

Once the pill has moved past the stomach and into the small intestine, the surrounding environment is no longer acidic. It is neutral. In non-acidic environments, the enteric coating dissolves and the fish oil is released into the intestine for absorption.

Since the pill dissolves in the intestines and not the stomach, you will not experience fishy burps. Well, you shouldn’t. The reason that enteric coating works is due to the highly acidic nature of the stomach.

There are two reasons why enteric coating of fish oil supplements fail:

1. The coating is chipped or cracked
2. Your stomach is not as acidic as it should be

Since enteric coating is sprayed onto the surface of the capsule, it is technically possible that the coating could chip or crack, like the paint on a wall. But this is so rare that it virtually never happens.

More often than not, it’s the stomach acidity that’s at the root of the problem.

Let me explain: acidity or pH is measured on a scale from 0 to 14. Zero is extremely acidic and 14 is extremely alkaline. 7 is neutral.

• Hydrochloric acid is near 0
• Battery acid is near 1
• Coca Cola is about 2
• Vinegar and Lemon juice is about 3
• Wine is about 4
• Coffee is about 5
• Rain water is about 6
• Pure water has a pH of 7
• Seawater is about 8
• Baking soda is about 9
• Antacids are about 10
• Milk of magnesia is about 11
• Bleach and oven cleaners are about 13
• Sodium Hydroxide (household lye) is about 14

A healthy stomach is at about 1 or 2…in the same ballpark as battery acid. This is normal and healthy.

Your stomach produces hydrochloric acid in small quantities to kill germs and to prepare proteins, some vitamins and minerals for digestion.

Here’s the surprise – many people don’t produce enough stomach acid.

There are several reasons for this:

• age
• stress
• poor thyroid function
• nutritional imbalances
• H. pylori infection due to gut microbiota imbalance
• Pernicious anemia
• long-term use of heartburn medications, etc.

This condition is called hypochlorhydria. Instead of pH being at 1.2, their stomach pH drifts up to 4 or 5 or even above 7.

Most people ironically consider this ‘too much acid,’ and begin taking antacids like Tums, Rolaids or stronger heartburn meds like Omeprazole. The problem is not always too much acid and these products don’t address the root cause of the issues. But that’s a rant for another day.

How does low stomach acid affect enteric coated fish oil pills?

Enteric coated fish oil pills will work perfectly well at pH of 1, 2 or 3. But at pH of 5 or 6, it won’t work. pH of 6 is getting close to being neutral and the enteric coating starts to dissolve.

Natural enteric coating made from algae (like the kind on OmegaVia) has a pH trigger of 3.5. In other words, the pill starts to dissolve when the surrounding acidity rises to 3.5. Synthetic enteric coatings made from methacrylic acid copolymers have a pH trigger of around 5.5, which will work better for people with hypochlorhydria.

If you have a low-acid stomach, the enteric coated pill ‘thinks’ it’s in the intestine and promptly dissolves.

If you burp up fish oil after taking an enteric coated product, your stomach acid production is compromised. The burping window is 2-3 hours.

This is a very simple test for hypochlorhydria.

Doctors should be using enteric coated fish oil pills to test their patients’ stomach acid production. It is a simple, cheap and safe test. The only downside is that if your stomach isn’t acidic enough, you may burp for about 3 hours.

People with this condition may not know that they have low stomach acid. We know. We hear from customers who have this issue.

Our customer service folks are not doctors. They are neither qualified nor authorized to diagnose you with hypochlorhydria. But we keep detailed notes of angry calls from burpers. We’ve noticed trends and have learned a thing or two about stomach acid.

Temporary cures

If you take OmegaVia and experienced burping, you may want to do a small, self-experiment: take your OmegaVia with something acidic.

Your choices are:

1. Orange juice (pH of 3.5) but you will have to drink 6 to 8 oz every hour for 3 hours. If you burp when you take the pills with water and don’t burp with orange juice, you may have stomach acid issues. Coca-Cola will work better. But both beverages are harmful if consumed regularly.
2. Powdered ascorbic acid. This is Vitamin C. Mix half a teaspoon into 8 oz of water and sip a few ounces every hour for three hours. Too much Vit C can cause stomach distress.
3. Apple cider vinegar. Same process as Ascorbic acid, but skip this if you’re sensitive to yeast.
4. Betaine hydrochloride – this may require assistance from a doctor or a professional. Take 1 Betaine pill a few minutes before your enteric coated fish oil pill. Take one every hour for three hours. This may be your best bet in the long run.

With all of these acidifying agents, you will be able to keep the enteric coating intact in the stomach, so you don’t burp up fish oil. But don’t do this on a daily basis. That’s overlooking the real problem.

The Elephant in the Stomach

Removing the inconvenience and nuisance of a fishy burp is minor compared to addressing the key issue: decreased stomach acid.

I strongly suggest you go to a functional medicine doctor to get to the root of this problem because fishy burps are the least of your problems. There are several health issues associated with low stomach acidity. Find the root cause and fix it.

Low stomach acid can cause several nutrient deficiencies. Another issue is that a healthy stomach is a very hostile place for most bacteria. With a low-acid stomach, bacteria from the mouth, intestines and elsewhere can easily colonize the stomach. A low-acid stomach is also unable to reliably kill pathogens like Salmonella.

If you go to a general practitioner, he or she may simply send you home with an antacid, which fixes nothing. Go to a functional medicine MD.

Once the problem is truly addressed, you will not only not burp up ‘burp-free’ fish oil pills, but you’ll feel a lot better a lot healthier.

 Your turn…

• Do you get fishy burps without enteric coating?
• More importantly, do you get fishy burps even with enteric coating?

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.