What Drinking Probiotic Soda Every Day Does to Your Body, According to Nutrition Experts

Probiotic soda has quickly become a trendy alternative to traditional soft drinks, promising gut-health benefits in a colorful can. But what actually happens if you drink one every day? The answer is more nuanced than the marketing often suggests, say nutrition experts.

Compared to regular soda, probiotic soda is usually lower in sugar and may contain live bacteria, prebiotic fiber, or both. That can make it a better everyday choice for some people—but it’s not a guaranteed shortcut to better gut health, and it’s not without potential downsides.

What Makes a Soda "Probiotic"?

Probiotic sodas contain live microorganisms intended to benefit health when consumed in adequate amounts. According to nutrition experts, many use shelf-stable bacterial strains that can survive manufacturing and storage.

“The probiotic strain I’ve seen most commonly used in probiotic sodas is Bacillus subtilis DE111,” says Jennie Miremadi, a dietitian-nutritionist who specializes in gut health. Because it’s a spore-forming strain, it can survive heat, acidity, and other harsh conditions that would normally destroy more delicate bacteria.

That’s one major difference between probiotic sodas and fermented dairy products like yogurt or kefir. Kara Landau, aka the Prebiotic Dietitian, explains that kefir and yogurt often contain a wider variety of live bacterial strains, which may provide more diversity for the gut microbiome. “Probiotic sodas generally do not contain diverse strains of bacteria that can be of benefit,” says Landau.

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Your Digestion May Improve

Some people who drink probiotic soda regularly may notice digestive improvements over time. Landau says potential benefits could include “improved digestion, healthier stools, or an increased tolerance to a variety of foods and nutrients due to improvements in the gut.”

But those effects depend heavily on the specific strain used in the beverage, and on the person drinking it—not everyone notices a difference.

Some probiotic sodas also contain prebiotic ingredients like chicory root inulin, which feed beneficial gut bacteria. For certain people, that may help support regularity. For others, especially those with gastrointestinal conditions like small intestinal bacterial overgrowth (SIBO), those ingredients may actually trigger gas and bloating.

Research on probiotic sodas themselves is still fairly limited, and experts caution against assuming all products deliver the same benefits. Even when a drink contains probiotics, the strains and amounts matter.

You Might Experience Gas or Bloating at First

One of the most common side effects of probiotic beverages is temporary digestive discomfort. “People will also respond differently to probiotic sodas based on their individual gut bacteria makeup,” says Landau, including differences in tolerance to fermentation, carbonation, or added fibers.

If you notice persistent bloating, excessive gas, abdominal pain, diarrhea, or constipation after drinking probiotic soda regularly, experts say that may be a sign the drink is not agreeing with your digestive system. “More is not always better with probiotics,” says Miremadi. “Signs it may be backfiring include increased bloating, gas, abdominal pain, constipation, diarrhea, or feeling worse after drinking it.”

Landau adds that ongoing symptoms after several weeks of drinking probiotic soda could indicate that a particular probiotic strain is not working well with your existing gut bacteria, or that there may be an underlying digestive issue that should be evaluated.

It’s Usually Better Than Regular Soda (But That Doesn’t Make It a Health Food)

Compared with traditional soda, probiotic soda is generally considered a healthier option. Many varieties contain less sugar and fewer artificial ingredients, while also offering probiotics or prebiotic fiber.

Still, experts caution that “healthier than soda” does not automatically mean healthy. Some probiotic sodas still contain added sugars or fruit juice concentrates that can affect blood sugar levels. Others rely on artificial sweeteners, which some research has linked to alterations in the gut microbiota and glucose regulation. Carbonation may also be irritating for people with sensitive digestive systems or bladder issues.

That’s why Landau recommends looking for products that are naturally sweetened or unsweetened (and paying attention to your own tolerance).

It May Not Offer the Same Benefits as Kefir or Kombucha

Probiotic soda is often grouped with other gut-health drinks, but nutritionally, they’re not identical. Miremadi notes that kefir is generally more nutrient-dense because it also contains protein, calcium, and a broader range of bacterial cultures.

Kombucha, meanwhile, contains live microbes and organic acids produced during fermentation. (Though Landau notes that kombucha does not necessarily deliver probiotic strains in amounts proven to provide a clinical benefit by the time you drink it.)

Rather than relying on a single probiotic drink every day, Landau suggests rotating among different fermented foods and beverages—including kefir, kombucha, kimchi, and sourdough—to support more microbial diversity.

The Bottom Line

Drinking probiotic soda every day may support digestion and gut health for some people, especially if it replaces traditional sugary soda. But the effects vary widely depending on the product, the probiotic strain, and your own digestive system.

Some people may feel better with regular consumption, while others may develop bloating, gas, or digestive discomfort. And despite the buzz around these drinks, experts say many health claims still need more research and verification.

The best approach: Treat probiotic soda as one possible part of a balanced diet, not a miracle cure in a can.