Skip to content

What Does Baking Soda Water Do to the Body?

4 min read

According to a study published in the American Journal of Medicine, baking soda supplementation was linked to slower kidney disease progression in patients with chronic kidney disease and low blood bicarbonate levels. This is just one of several potential effects, alongside numerous risks, that drinking baking soda water can have on the body.

Quick Summary

Baking soda water can act as a temporary antacid for acid reflux and may aid athletic performance by buffering lactic acid, but its high sodium content and potential to cause serious electrolyte imbalances mean it should be used with extreme caution and never for long-term treatment.

Key Points

  • Heartburn Relief: Baking soda water can temporarily neutralize stomach acid, offering quick relief from heartburn and indigestion.

  • Potential for Overload: Excessive or long-term consumption of baking soda water is dangerous due to its extremely high sodium content, risking high blood pressure, fluid retention, and metabolic alkalosis.

  • Athletic Performance Aid: When used by athletes under specific, medically guided protocols, it can buffer lactic acid buildup during intense exercise, potentially delaying fatigue.

  • Kidney Disease Management: In some cases of chronic kidney disease, medical professionals prescribe sodium bicarbonate to help manage metabolic acidosis, but this requires careful supervision.

  • Risk of Electrolyte Imbalance: Overuse can lead to serious electrolyte imbalances, causing symptoms like muscle cramps, headaches, and even more severe complications.

  • Not a Long-Term Solution: Baking soda is only for occasional, short-term relief. Safer, low-sodium antacids are widely available for regular use.

  • Gastrointestinal Distress: Using amounts of baking soda intended to influence athletic performance can cause significant gastrointestinal discomfort, including bloating, gas, nausea, and diarrhea.

In This Article

How Baking Soda Water Affects Your Body

Baking soda, scientifically known as sodium bicarbonate (NaHCO3), is a chemical compound used for everything from baking to cleaning. When dissolved in water and ingested, its primary function is to act as an alkaline buffer, neutralizing acid. This simple chemical reaction is responsible for many of its purported health benefits, but also its most significant risks. Understanding how this process affects different systems of the body is key to using it safely, if at all.

Digestive Health: A Double-Edged Sword

For decades, baking soda has been a go-to home remedy for stomach discomfort, but its effect on the digestive system is complex.

  • Temporary Heartburn and Indigestion Relief: As an antacid, baking soda works quickly to neutralize excess stomach acid, providing fast relief from heartburn and indigestion. This is particularly useful for occasional, mild acid reflux. A typical amount used for adults for occasional indigestion is a small quantity dissolved in water.
  • Risk of Acid Rebound: While it provides temporary relief, a sudden and significant decrease in stomach acidity can trigger the stomach to produce more acid to compensate, a phenomenon known as acid rebound. This can cause symptoms to return even worse than before.
  • Potential for Gastric Rupture: In very rare cases, especially when taken on a very full stomach, the rapid production of carbon dioxide gas from the reaction between baking soda and stomach acid can cause the stomach to rupture. This is a severe and potentially fatal risk.

Athletic Performance: Buffering Muscular Acid

During intense, high-intensity exercise (lasting between 30 seconds and 12 minutes), muscles produce lactic acid and hydrogen ions, which contribute to fatigue.

  • Mechanism of Action: Consuming baking soda can increase the buffering capacity of the blood, allowing it to better neutralize the acid buildup in the muscles. This can delay muscle fatigue and potentially enhance athletic performance and endurance.
  • Administration and Side Effects: Specific protocols exist for athletes aiming to use baking soda as an ergogenic aid, often involving consuming it some time before exercise. However, using amounts intended to influence athletic performance increases the risk of gastrointestinal side effects like bloating, nausea, and diarrhea.

Kidney Function: Proceed with Caution

Baking soda plays a crucial role in managing metabolic acidosis in certain individuals with chronic kidney disease (CKD), but it is not a supplement to be taken without medical supervision.

  • Medical Management of Metabolic Acidosis: Under the guidance of a doctor, sodium bicarbonate can be used to help regulate the body's pH levels and potentially slow the progression of CKD.
  • Risk of High Sodium and Electrolyte Imbalance: Baking soda is very high in sodium (a single teaspoon contains a significant portion of the recommended daily intake), which can be dangerous for individuals with kidney or heart disease, high blood pressure, or those on a sodium-restricted diet. Excessive intake can lead to serious electrolyte imbalances, fluid retention, and worsening of hypertension.

Other Potential Uses and Risks

Beyond digestion, athletics, and kidney support, baking soda is sometimes touted for other uses, most of which have limited scientific backing.

  • Oral Health: Using baking soda as a mouth rinse can neutralize acids and kill bacteria, promoting better oral hygiene. However, long-term use in high concentrations can be too abrasive for tooth enamel.
  • Skin Health: Some use baking soda in baths to soothe irritated skin from conditions like eczema or bug bites. The alkaline nature may provide temporary relief, but it can also disrupt the skin's natural pH, leading to irritation and dryness.

Comparative Analysis: Baking Soda Water vs. OTC Antacids

Feature Baking Soda Water (Homemade) OTC Antacids (e.g., Tums)
Speed of Relief Very fast acting due to rapid neutralization. Quick relief, often formulated for rapid action.
Ease of Use Simple to mix at home, but requires precise measurement. Convenient, pre-measured tablets or liquid.
Ingredient Purity Pure sodium bicarbonate, but potential for incorrect administration. Formulated with consistent ingredients; some contain other active compounds.
Sodium Content Extremely high sodium content, which is a major health concern, especially with frequent use. Lower sodium content; many options are low-sodium or sodium-free.
Risk of Side Effects High risk of gastric rupture, metabolic alkalosis, and electrolyte imbalance with overuse. Generally safer for occasional use; overdose can still cause issues.
Long-Term Safety Not recommended for long-term or daily use without medical supervision. Not intended for chronic use without a doctor's guidance.

Conclusion

Baking soda water offers a quick, albeit temporary, solution for occasional acid reflux and can be an effective ergogenic aid for high-intensity athletes when used under specific guidance. However, these benefits are overshadowed by significant risks if the substance is used improperly, excessively, or for chronic conditions. Its extremely high sodium content and potential to cause metabolic alkalosis and severe electrolyte imbalances make it dangerous, especially for individuals with pre-existing conditions like high blood pressure or kidney disease. For occasional relief, safer, low-sodium over-the-counter options are generally recommended. Any long-term use for health purposes should be discussed with a healthcare professional to ensure safety and avoid potential harm.

Boost Your Performance Using Simple Baking Soda provides more detail on the athletic applications and risks.

Frequently Asked Questions

No, it is not safe to drink baking soda water every day. Its high sodium content can cause serious health problems, including high blood pressure, electrolyte imbalances, and metabolic alkalosis, especially with chronic use.

For occasional indigestion, a common recommendation is to mix a small amount of baking soda in at least four ounces (half a cup) of water and drink it slowly. This should only be used for temporary relief.

Yes, some athletes use baking soda, following specific protocols, to buffer the lactic acid buildup during high-intensity exercise. This may delay fatigue and improve performance, but it carries a risk of gastrointestinal distress and should be trialed carefully.

People with high blood pressure, kidney disease, heart disease, pregnant women, and children under six should avoid drinking baking soda water. Its high sodium content is particularly dangerous for these groups.

Drinking too much baking soda can cause a host of issues, including severe electrolyte imbalances, metabolic alkalosis, nausea, vomiting, diarrhea, and in rare, extreme cases, stomach rupture.

While sometimes claimed as a detox aid, experts and registered dietitians state there is little scientific evidence to support this. The body has its own efficient detox systems, and excessive baking soda can do more harm than good.

For patients with specific conditions like chronic kidney disease and metabolic acidosis, a doctor may prescribe sodium bicarbonate to help regulate blood pH. However, self-medicating with baking soda is highly risky for the kidneys due to the high sodium load.

References

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.