## Austin's Enzymes: City Chlorine Crashing Digestion?

By Franklin Everett Shaw

January 3, 2026

The tap water in Austin tastes…different. It’s not just your imagination. While perfectly safe to drink, the chlorination process, essential for public health, can leave behind byproducts that impact taste and, for some, digestion. But don’t resign yourself to a life of bottled water and potential tummy troubles.

Austin’s water, sourced primarily from the Colorado River, undergoes rigorous treatment. This includes chlorination, a process that kills harmful bacteria and viruses. However, chlorine reacts with organic matter in the water, forming disinfection byproducts (DBPs) like trihalomethanes (THMs) and haloacetic acids (HAAs). These are regulated by the EPA, but even within legal limits, they can contribute to that “chlorine” taste and, more concerningly, disrupt your gut microbiome.

So, what can an Austin resident do? Let’s break it down into actionable steps.

First, know your water. You can request a water quality report from Austin Water. This report details the levels of chlorine and DBPs in your water. Alternatively, purchase a home water testing kit from a local hardware store like Home Depot on Ben White Boulevard or Lowe’s on Research Boulevard. These kits, typically costing between $20-$50, can give you a quick snapshot of your water’s chlorine levels.

Next, filter strategically. A simple pitcher filter, like a Brita or PUR, is a good starting point. These filters use activated carbon to remove chlorine and some DBPs. However, they are not the most effective for removing all contaminants. For more comprehensive filtration, consider a faucet-mounted filter or an under-sink system. These offer better filtration capacity and can remove a wider range of contaminants, including lead and pesticides, which can also be present in Austin’s aging water infrastructure.

For the ultimate solution, a whole-house water filter is the gold standard. These systems filter all the water entering your home, protecting not only your drinking water but also your shower water, which can be a significant source of chlorine exposure through inhalation and skin absorption. Expect to pay anywhere from $500 to $2000 for a whole-house system, plus installation. Companies like Aqua Clear Water Systems in North Austin specialize in these installations and can advise on the best system for your needs and budget.

Choosing the right filter media is crucial. Activated carbon is effective for chlorine and some DBPs. Catalytic carbon is even better at removing chloramine, another disinfectant used by Austin Water. Reverse osmosis (RO) systems are the most comprehensive, removing virtually all contaminants, but they also remove beneficial minerals and can waste water. Consider remineralizing your water if you opt for an RO system.

Now, let’s talk about gut health. Chlorine and DBPs can disrupt the delicate balance of your gut microbiome, potentially leading to digestive issues like bloating, gas, and diarrhea. Supporting your gut health is essential for mitigating these effects.

One key strategy is to increase your intake of digestive enzymes. These enzymes help break down food, making it easier to digest and reducing the burden on your gut. You can boost your enzyme intake through diet by incorporating foods like pineapple (bromelain), papaya (papain), and avocado (lipase).

Supplementation can also be beneficial. Look for a broad-spectrum digestive enzyme supplement containing amylase (for carbohydrates), protease (for protein), and lipase (for fats). Brands like NOW Foods and Garden of Life, available at Whole Foods Market on North Lamar, offer reputable digestive enzyme supplements.

Probiotics are another crucial component of gut health. These beneficial bacteria help restore balance to your gut microbiome. Look for probiotic strains that have been shown to be effective in mitigating the effects of chlorine and DBPs. Lactobacillus rhamnosus GG and Bifidobacterium lactis HN019 are two strains that have shown promise in studies.

You can find probiotic supplements at local health food stores like Peoples Rx on South Lamar. Consider incorporating fermented foods like sauerkraut, kimchi, and kombucha into your diet. These foods are naturally rich in probiotics and can help support a healthy gut microbiome. You can find locally made kombucha at the Austin Farmers Market at Republic Square Park.

Hydration is key, but not just with plain tap water. Consider adding electrolytes to your water to help replenish minerals lost through filtration and to support hydration. LMNT is a popular electrolyte supplement that is sugar-free and contains a balanced blend of sodium, potassium, and magnesium. You can find LMNT at many local gyms and health food stores.

Be mindful of your cooking water. Using filtered water for cooking, especially for soups and stews, can significantly reduce your exposure to chlorine and DBPs.

Consider a shower filter. As mentioned earlier, showering can be a significant source of chlorine exposure. A shower filter can remove chlorine and other contaminants from your shower water, reducing your exposure and improving your skin and hair health.

Address underlying gut issues. If you are experiencing persistent digestive issues, it’s important to consult with a healthcare professional. They can help identify any underlying gut issues, such as leaky gut or SIBO (small intestinal bacterial overgrowth), that may be contributing to your symptoms. Functional medicine practitioners in Austin, like those at the Austin Center for Functional Medicine, can offer comprehensive gut health assessments and personalized treatment plans.

Common pitfalls and how to avoid them:

• Not testing your water: You’re flying blind. Test your water regularly to understand the levels of chlorine and DBPs.
• Using the wrong filter: A simple pitcher filter may not be enough. Choose a filter that is appropriate for your needs and budget.
• Not replacing your filter cartridges: Filters become less effective over time. Replace your filter cartridges according to the manufacturer’s instructions.
• Ignoring your gut health: Chlorine and DBPs can disrupt your gut microbiome. Support your gut health with digestive enzymes, probiotics, and a healthy diet.
• Not consulting with a healthcare professional: If you are experiencing persistent digestive issues, consult with a healthcare professional to rule out any underlying conditions.

Living in Austin offers a vibrant lifestyle, but being proactive about your water quality and gut health is essential for maintaining optimal well-being. By following these steps, you can mitigate the potential digestive issues caused by chlorinated water and enjoy all that Austin has to offer, worry-free. Remember, a healthy gut is a happy gut, and a happy gut makes for a happy Austinite.