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Contents of chocolate and side effects from eating chocolate can lead to acid reflux, but should everyone prone to acid reflux or GERD remove chocolate from their diet? Which form of chocolate is less prone to causing acid reflux? White chocolate, milk chocolate, or dark chocolate? What about carob as a substitute?CHOCOLATE!!! Do I have your attention? If you’re anything like me, I do. I love chocolate! Luckily over the years, I’ve gravitated to eating dark chocolate and cacao, varieties considered to be superfoods. They’re full of antioxidants, vitamins, and minerals. Eaten in moderation dark chocolate and cacao are considered healthy… if you pick the right products.

Benefits of chocolate are claimed to include:

  • Improved heart health
  • Reduced stroke risk
  • Improved brain function
  • Appetite control
  • Potentially reduces cancer risk
  • Improved cholesterol levels
  • Improved blood flow
  • Improved vision
  • Lowers blood pressure
  • Protects skin against UV damage
  • Promotion of fetal growth and development
  • Improved muscle and nerve function
  • Improved athletic performance
  • Improved mood
  • Decreased blood sugar
  • Diarrhea relief
  • Cough relief
  • and many more claims

BUT there are health precautions concerning chocolate especially for those prone to acid reflux.




 

Chocolate and Acid Reflux

Is chocolate causing your heartburn? I’m sorry to say it may be. Chocolate is one of the heartburn trigger foods that may cause problems for those with chronic acid reflux otherwise known as gastroesophageal reflux disease (GERD).

How Does Chocolate Cause Acid Reflux? Essentially chocolate can lead to a compromised lower esophageal sphincter (LES).1 The LES is a valve at the base of the esophagus that closes to keep contents in the stomach and out of the esophagus. When the LES is weakened in some way, stomach acid can back up (reflux) into the esophagus to cause a number of acid reflux symptoms including the irritation we know as heartburn.

Chocolate is high in cocoa, fat, caffeine, and theobromine. Each of these contributes to acid reflux. There are also health issues caused by eating chocolate that trigger acid reflux. But what if I told you there was also a component of chocolate that could reduce the pain of heartburn in some people? After all, we are all different and respond differently to foods.

Caffeine and Theobromine in Chocolate Cause Acid Reflux

Chocolate contains the methylated xanthines (methylxanthines) caffeine and theobromine. Methylxanthines block adenosine receptors. This results in the increased release of the hormones norepinephrine and serotonin.2 The elevation of methylxanthines levels contribute to acid reflux and heartburn in the following ways:

1) Serotonin

Serotonin may enhance our moods but it also causes smooth muscle tissue to relax. The LES is made of smooth muscle tissue. When the LES relaxes, stomach acid can reflux into the esophagus.3

One study of GERD patients looked at blocking the effect of chocolate on the LES by giving the serotonin blocker, granisetron, to GERD patients. These patients had fewer events of acid reflux and that the duration of acid exposure was lessened. This treatment method proved to be effective without the need for acid-neutralizing or acid-blocking medications. It is important to remember that acid needed for proper digestion and for controlling the growth of harmful bacteria in the gastrointestinal tract. Heartburn medications can provide relief from heartburn but they aren’t a cure and they do have side effects that can disrupt proper digestion.4

2) Norepinephrine

Norepinephrine, also known as noradrenaline, is a stress hormone vital to the fight-or-flight response of the human body. The fight-or-flight response prepares the body to react or retreat from a perceived threat.5

There is debate as to whether stress causes acid reflux. What is known for sure is that increased stress results in heightened senses and thusly increases the sensitivity to the pain of heartburn.

3) Methylxanthines

Methylxanthines also prompt the secretion of stomach acid. Higher levels of stomach acid can increase esophageal irritation when acid reflux occurs, thus increasing heartburn pain and the risk of acid erosion.6, 7




 

Fat in Chocolate Causes Acid Reflux

Chocolate contains fat in varying amounts. Higher the fat content greater the risk of experiencing acid reflux.

Fatty foods slow the digestive process. The stomach empties slower when digesting fats. This digestive delay can lead to added pressure on the LES. Fatty foods can also cause an increase in stomach acid production. When the pressure on the LES is great enough, stomach acid will reflux into the esophagus and cause heartburn.

Cocoa Increases Acid Reflux Symptoms

Chocolate is made from cocoa powder. Which is ground from roasted cocoa beans, the seed of the Theobroma cacao tree. Cocoa powder is acidic. If reflux occurs, the increased acid can increase the irritation of heartburn.

Health Issues Caused by Eating Chocolate Can Cause Acid Reflux

The following list of side effects from eating chocolate can typically be avoided by limiting consumption.

  • Gas
  • Bloating
  • Constipation
  • Weight gain

Gas, bloating, constipation, and weight gain all increase abdominal pressure. Increased abdominal pressure weakens the closure of the LES allowing acid to reflux.




 

Milk Chocolate, Dark Chocolate, or White Chocolate? Which Should Be Eliminated with GERD?

High quality, organic dark chocolate containing 70% or higher cocoa content is considered healthiest from a nutrition standpoint. But what form is best for people who regularly experience acid reflux? Milk chocolate, dark chocolate, or white chocolate?

Well, the best option may be to avoid chocolate altogether. This is the suggestion provided by many researchers and doctors alike. That said, people can experience acid reflux for different reasons. Different foods, medications, lifestyles, and health conditions may cause acid reflux in one person but not another. You may find that chocolate isn’t a food that triggers your heartburn, or that you can eat chocolate in small amounts, or you can eat chocolate if other heartburn trigger foods and situations are avoided around the time of consumption. Maybe try an alternative to chocolate like carob. Carob tastes similar but is lower in fat and free of caffeine and theobromine. You will have to find out by trial and error.

If you don’t want to eliminate chocolate from your diet, experiment to see if the fat content or the level of caffeine and theobromine cause you greater issue with acid reflux and heartburn.

  • Dark chocolate is lower in fat but has higher levels of caffeine and theobromine.
  • Milk chocolate and white chocolate have higher fat content.
  • White chocolate doesn’t contain cocoa solids and therefore contains only trace amounts of caffeine and theobromine.
  • Additionally, if you’re buying chocolate with other ingredients like nuts or fruit, consider if these other ingredients might be triggering your acid reflux.




Contents of chocolate and side effects from eating chocolate can lead to acid reflux, but should everyone prone to acid reflux or GERD remove chocolate from their diet? Which form of chocolate is less prone to causing acid reflux? White chocolate, milk chocolate, or dark chocolate? What about carob as a substitute?

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2 Comments
  1. Lauren 1 week ago

    This is an interesting study, my son has Achalasia type 2 which is where the “LES” or lower esophagus sphincter tightens due to nerves. Part of diagnosing him includes a biopsy of his esophagus to test for inflammation/allergic reaction he tested positive for Eosinophils.
    That being said the elimination diet is suggested to determine food allergies, I took an extra step and had him tested for food allergies on his skin. ((FOR THE RECORD I was told an internal reaction vrs external doesn’t always coincide with each other or in better words kids who can’t eat peanuts are sometimes able to touch them just fine but as soon as they hit their throat it blows up.)) The only external food allergy he had was chocolate.
    Everything being said, Your study seemed to me to focus on chocolate loosening the spincter causing reflux but maybe it’s possible it can also tighten it as well and cause food not to go down altogether then contract back up.

    • Author
      Steve Hood 1 week ago

      Hello Lauren! Thank you for sharing your son’s experience with achalasia, eosinophils, and allergy to chocolate. Achalasia is rather rare and so is eosinophilic esophagitis. I’m glad they were able to diagnose the problems he’s having and I hope they have him on a path that’s showing promising results. It’s my understanding that most people with eosinophilic esophagitis respond very positively when on an elimination diet and many are allergic to candida which can be reduced by reducing sugar intake… Chocolate can contain mold toxins due to how the cocoa bean is harvested and processed which can cause people health problems. High-quality dark chocolate is less likely to contain these molds. I don’t know if these molds might be a factor in your son’s situation… I’ve not run across any studies where chocolate has caused a tightening or strengthening of the LES. Wishing you and your son the best of health!

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