Can You Take Too Many Probiotics: Myth or Reality? Exploring the Facts

can you take too many probiotics? In general, taking probiotics in the long term is considered safe, and there is no harm in increasing the dose if you feel the need, provided you follow the manufacturer’s guidelines2. However, it’s worth noting that consuming very large amounts of a specific probiotic strain, such as Saccharomyces boulardii, could potentially lead to temporary constipation in some cases. This side effect is usually temporary and can be easily resolved by reducing the dosage2.

Overdosing on prebiotics:

Prebiotics, which serve as a food source for probiotics, are also considered safe when taken in large amounts. However, consuming excessive prebiotics may initially result in bloating or flatulence3. These symptoms are a positive indication that the prebiotics are working, but if they persist for more than a few days, consider reducing the dosage and gradually increasing it again3. Some probiotic supplements include prebiotics, forming a synbiotic combination that can offer additional benefits4.

How much probiotic is too much per day?

The optimal dosage of probiotics varies depending on the specific strain and the desired health benefit. Most studies have used doses ranging from 1 billion to 10 billion colony-forming units (CFU) per day5. When choosing a probiotic supplement, look for products that provide at least 1 billion CFU per serving to ensure an effective dose6.

Is 100 billion probiotics too much?

While a dosage of 100 billion CFU may seem high, it is still well within the safe range for most individuals. Some high-potency probiotic supplements contain up to 900 billion CFU per dose7. However, it’s essential to start with a lower dose and gradually increase it to assess your tolerance and avoid potential side effects, such as bloating or gas7.

Is it OK to take probiotics twice a day?

Taking probiotics twice a day is generally considered safe and may be recommended by some manufacturers or healthcare professionals8. However, it’s crucial to follow the instructions provided with your specific probiotic supplement and not exceed the recommended daily dosage without consulting a healthcare provider8.

Can you have too much good bacteria in your gut?

While it’s difficult to have too much good bacteria in your gut, an imbalance in the gut microbiome, known as dysbiosis, can occur9. Dysbiosis can result from various factors, including poor diet, stress, and antibiotic use9. Probiotics can help restore balance to the gut microbiome and alleviate symptoms associated with dysbiosis, such as constipation10.

Why consider probiotic supplements over yogurts?

Probiotic supplements offer several advantages over yogurts and other fermented foods. Supplements typically contain higher concentrations of specific probiotic strains and can be tailored to target specific health concerns11. They also offer convenience and consistency in dosing, as the probiotic content in fermented foods can vary significantly11.

Are probiotics safe to take?

Probiotics are generally considered safe for most individuals, including pregnant and breastfeeding women12. However, some people may experience mild side effects, such as bloating, gas, or diarrhea, which usually subside within a few days12. It’s essential to consult a healthcare provider before taking probiotics if you have a weakened immune system, a critical illness, or are recovering from surgery12.


In conclusion, it is highly unlikely to take too many probiotics, as the human gut naturally contains trillions of microorganisms. However, it’s essential to follow the manufacturer’s guidelines and consult a healthcare provider if you have any concerns or underlying health conditions. When selecting a probiotic supplement, choose a high-quality product with clinically-studied strains and a sufficient CFU count to ensure optimal efficacy. By incorporating probiotics into your daily routine, you can support your gut health and overall well-being.


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  11. Govender, M., Choonara, Y. E., Kumar, P., du Toit, L. C., van Vuuren, S., & Pillay, V. (2014). A review of the advancements in probiotic delivery: Conventional vs. non-conventional formulations for intestinal flora supplementation. AAPS PharmSciTech, 15(1), 29-43.
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