The Dangers of Low Stomach Acid
Digestive health

The Dangers of Low Stomach Acid

How to Diagnose & Correct It

Stomach acid, also known as gastric acid, plays a crucial role in the digestive process.

It helps to break down food, absorb nutrients, and activate enzymes necessary for digestion. Additionally, stomach acid helps to protect the body from harmful bacteria and pathogens, supporting overall immune system function. However, low stomach acid, also known as hypochlorhydria, is a condition that can disrupt this process and lead to a range of health issues.

Despite its importance, low stomach acid is a surprisingly common condition. According to one study, nearly 10% of people over the age of 60 have low stomach acid, and this percentage increases with age. However, many people with low stomach acid are not aware of the condition, as the symptoms can be vague and easily mistaken for other health issues.

In this article, we will explore the causes and symptoms of low stomach acid, as well as the potential impact on overall health. We will also discuss ways to test for low stomach acid and various treatment options, including dietary changes and supplementation.

By understanding the importance of stomach acid and how to address low levels, readers can take an active role in supporting their digestive health and overall well-being.

Understanding Low Stomach Acid

Low stomach acid, also known as hypochlorhydria, is a condition in which the stomach produces an insufficient amount of hydrochloric acid (HCl) to properly break down food.

This can be caused by a variety of factors, including ageing, stress, nutrient deficiencies, and certain medications.

The symptoms of low stomach acid can be wide-ranging and often mimic those of other digestive disorders. These symptoms may include bloating, gas, indigestion, heartburn, acid reflux, constipation, diarrhoea, and malabsorption of nutrients. Low stomach acid can also contribute to food sensitivities, allergies, and skin issues. Unfortunately, low stomach acid is often misdiagnosed as other conditions, leading to ineffective treatment or unnecessary medication.

Low stomach acid has been linked to various health issues, including autoimmune diseases, allergies, asthma, osteoporosis, and even depression. This is due to the role that stomach acid plays in the digestion and absorption of nutrients, as well as its impact on the gut microbiome and immune system. Low stomach acid can also increase the risk of developing infections in the gastrointestinal tract, such as H. pylori, and contribute to chronic inflammation throughout the body.

By understanding the causes, symptoms, and impact of low stomach acid, individuals can take steps to identify and address this issue in order to support overall health and wellness.

Diagnosing and Treating Low Stomach Acid

If you suspect that you have low stomach acid, there are several diagnostic tests that your doctor can perform to confirm the diagnosis.

Two common tests include the Heidelberg test and the baking soda test. The Heidelberg test is a medical diagnostic test that uses a capsule to measure the pH of the stomach. The capsule contains a radio transmitter that sends signals to a machine, which then analyses the results. The baking soda test involves drinking a solution of baking soda and water and monitoring how long it takes for you to burp. If you don’t burp within a few minutes, it could be a sign of low stomach acid.

There are several dietary and lifestyle changes that can help correct low stomach acid. Some of these changes include eating smaller meals more frequently, avoiding spicy and fatty foods, chewing food thoroughly, and reducing stress. Additionally, you can increase your stomach acid production by consuming foods that are high in zinc and vitamin B, such as pumpkin seeds, spinach, and almonds.

Supplements and medications can also help correct low stomach acid. Digestive enzyme supplements can help break down food and increase the amount of stomach acid. Betaine HCl supplements can also help increase stomach acid levels. However, it’s important to consult with a healthcare professional before taking any supplements, as they can interact with other medications and have potential side effects. In some cases, medications like proton pump inhibitors (PPIs) or histamine-2 receptor antagonists (H2 blockers) may be prescribed to increase stomach acid levels.

Overall, the treatment for low stomach acid will depend on the severity of your symptoms and the underlying cause. It’s important to work with a healthcare professional to diagnose and treat low stomach acid, as it can have a significant impact on overall health and well-being.

Diet and Lifestyle Changes for Low Stomach Acid

Dietary changes can be an effective way to address low stomach acid levels. Some foods can help increase stomach acid production while others can inhibit it.

To improve stomach acid levels, it is recommended to avoid foods that can lower acid levels, including processed foods, sugar, caffeine, and alcohol. Instead, incorporate foods that can help increase stomach acid production, such as:

  • Fermented foods like kimchi, sauerkraut, and kefir
  • Foods high in zinc like shellfish, beef, and pumpkin seeds
  • Foods high in vitamin C like oranges, peppers, and strawberries
  • Apple cider vinegar (diluted with water)
  • Ginger and turmeric

Lifestyle changes can also play a role in improving stomach acid levels. Reducing stress, getting adequate sleep, and staying hydrated can all help improve digestion and support healthy stomach acid production.

Stress can inhibit stomach acid production, so it’s important to find ways to manage stress levels, such as through meditation, yoga, or other relaxation techniques. Getting enough sleep is also essential for overall health and can help support healthy digestion.

Staying hydrated is important for healthy digestion and can help keep stomach acid levels in balance. It’s recommended to drink plenty of water throughout the day and avoid drinking too much with meals, as this can dilute stomach acid.

Implementing diet and lifestyle changes can feel overwhelming, but there are some practical tips to help make the process easier. Start by focusing on one or two changes at a time and gradually work your way up to a more comprehensive plan. For example, you might start by incorporating more fermented foods into your diet or reducing your intake of caffeine and alcohol.

It’s also important to listen to your body and pay attention to how certain foods and lifestyle factors make you feel. Keep a food diary to track how different foods affect your digestion, and make adjustments as needed. Consider working with a healthcare professional, such as a registered dietitian, to develop a personalised plan based on your individual needs and preferences.

By incorporating dietary and lifestyle changes, it is possible to improve stomach acid levels and support healthy digestion.

Supplements and Medications for Low Stomach Acid

One of the main supplements recommended for low stomach acid is digestive enzymes.

Digestive enzymes can help break down food more effectively, supporting the digestive process when stomach acid is low. Betaine HCl is another popular supplement for low stomach acid. Betaine HCl can help increase stomach acid production, which can improve digestion and nutrient absorption.

In some cases, medication may be necessary to treat low stomach acid. Proton pump inhibitors (PPIs) and H2 blockers are two types of medication that are commonly used for this purpose. PPIs work by reducing the amount of acid produced by the stomach, while H2 blockers reduce the amount of acid that is released in response to food.

While supplements and medications can be effective in treating low stomach acid, there are some potential risks to consider. Prolonged use of PPIs can lead to a reduction in stomach acid production, which can cause a range of health problems. H2 blockers can also have negative side effects, such as headaches and diarrhoea.

When it comes to supplements, it’s important to choose high-quality products and to follow recommended dosages. Taking too many digestive enzymes, for example, can cause digestive distress. It’s also important to note that some supplements may interact with other medications or have negative side effects in some individuals.

Ultimately, it’s important to work with a healthcare provider to determine the best approach for treating low stomach acid. They can help assess the underlying causes of low stomach acid and develop a personalised treatment plan that takes into account a person’s individual needs and health status.

Risks of Ignoring Low Stomach Acid

While low stomach acid may seem like a relatively minor health issue, it can have long-term consequences if left untreated.

Over time, chronic low stomach acid can lead to a variety of health complications, including malnutrition, infections, and chronic illnesses.

One of the primary risks of low stomach acid is the development of nutrient deficiencies. Stomach acid plays a crucial role in breaking down and absorbing nutrients from food. Without sufficient stomach acid, the body may struggle to absorb essential vitamins and minerals like iron, calcium, and vitamin B12. This can lead to anaemia, osteoporosis, and other health issues.

Additionally, low stomach acid can increase the risk of infections in the digestive tract. Stomach acid acts as a natural barrier against harmful bacteria and parasites, preventing them from entering the body and causing infections. When stomach acid levels are low, this protective barrier is weakened, increasing the risk of infections and inflammation in the digestive tract.

Finally, chronic low stomach acid has been linked to the development of chronic illnesses such as autoimmune diseases, metabolic disorders, and even certain types of cancer. While the exact mechanisms behind this connection are still not fully understood, research suggests that low stomach acid may contribute to chronic inflammation and immune system dysfunction, which can increase the risk of chronic illness.

Given these potential risks, it is important to address low stomach acid as soon as possible to prevent further health complications.


In conclusion, low stomach acid can have significant impacts on overall health and the digestive process.

It can lead to malabsorption of nutrients, immune system dysfunction, and increased risk of health complications. It is important to recognize the symptoms of low stomach acid and to seek medical advice if needed.

In this article, we discussed the importance of stomach acid in the digestive process, the prevalence of low stomach acid, and its potential impact on overall health. We explored the causes and symptoms of low stomach acid, which can be misdiagnosed as other conditions. Additionally, we discussed the connection between low stomach acid and various health issues, including nutrient deficiencies and immune system dysfunction.

We also discussed various diagnostic tests for low stomach acid, including the Heidelberg test and the baking soda test. We covered dietary and lifestyle changes that can help correct low stomach acid, such as avoiding certain foods and incorporating stress reduction and hydration practices. We explored various supplements that can help improve low stomach acid, including digestive enzymes and betaine HCl, as well as the use of medications such as proton pump inhibitors and H2 blockers.

Lastly, we discussed the potential long-term health consequences of untreated low stomach acid, including the risk of nutrient deficiencies and other health complications. We highlighted the importance of addressing low stomach acid to prevent further health issues.

Readers are encouraged to seek medical advice if they suspect they have low stomach acid. It is also important to understand that supplements and medications for low stomach acid should be used with caution, as there may be potential risks and benefits associated with their use.

For further information and resources, readers can consult with their healthcare providers and refer to additional research and publications on low stomach acid and its treatments.

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