If you have searched for a Physician’s Choice Probiotic review, there is a good chance you are trying to answer one specific question: does this commonly marketed supplement actually do anything for constipation, or is it just another well-marketed bottle of bacteria?
This review looks specifically at the brand’s original 60 Billion Probiotic formula (a 10-strain product), not the newer 60 Billion Advanced Probiotic, a separate 12-strain formula the brand also sells, using the product’s own label claims alongside published constipation research, so you can decide whether it is worth trying for your own digestive health.
Disclosure: This article contains affiliate links. If you purchase through one of these links, we may earn a commission at no additional cost to you.
We are not a medical practice, and this article does not replace advice from your doctor. It is intended to help you understand what is actually in this product, what the research on probiotics and constipation currently shows, and where the evidence for this specific formula is still limited.
What Is Physician’s Choice Probiotic?
Physician’s Choice is a supplement brand that says its formulas are developed with input from a Scientific Advisory Board of physicians, naturopaths, and PhDs.[6] The 60 Billion Probiotic is currently listed by the brand as its #1 Best Seller, and is marketed as a general digestive and immune-support supplement rather than a constipation treatment specifically.
According to the brand’s current product information, the current formula provides 60 billion CFUs (colony-forming units) from a blend of probiotic strains, plus a 150 mg organic prebiotic blend, in a single daily, acid-resistant capsule.[5]
You can check the current Amazon listing for pricing and availability; double-check the listing and bottle label match the original 60 Billion Probiotic (10-strain) formula covered in this review, since the brand also sells a separate 60 Billion Advanced Probiotic (12-strain) product.
The product is currently offered in 30-count and 60-count bottles, with pricing varying by bottle size, retailer, and promotions. It is worth checking current pricing before buying rather than relying on a fixed figure.
It is worth being precise about the claims here. Physician’s Choice states the product “supports” or “helps with” occasional constipation, diarrhea, gas, and bloating.[5] Under FDA rules for dietary supplements, this kind of structure/function claim is not the same as saying the product treats or cures constipation, and the label itself includes a standard disclaimer that these statements have not been evaluated by the FDA.[5]
Can Physician’s Choice Probiotic Help With Constipation?
This is the core question, and the honest answer is a qualified maybe. There are two separate things to evaluate: what research says about probiotics as a category for constipation, and what is specifically known about this exact product. Keeping these two questions separate is the most important thing to understand about this review: some probiotics have shown benefit for constipation in research, but that benefit is strain-specific and formulation-specific, and it does not automatically apply to Physician’s Choice 60 Billion Probiotic just because the product contains bacteria from the same broad families.
On the category-level question, the evidence is suggestive but inconsistent. A 2022 systematic review and meta-analysis of 30 randomized controlled trials, published in Clinical Nutrition, found that probiotics were associated with a higher treatment response rate than placebo for chronic constipation, with a response rate of 57% versus 44% for placebo.[1]
A separate 2024 systematic review and meta-analysis in Cureus, pooling data from 1,243 patients across 10 studies, also found a statistically significant overall benefit favoring probiotics, but the analysis showed very high heterogeneity (I²=95%) and reported publication bias, which makes the size and reliability of the pooled effect uncertain.[2] An earlier 2014 meta-analysis in the American Journal of Clinical Nutrition also found evidence that some probiotic interventions could improve bowel-related outcomes, although the results varied across strains and studies.[4]
Importantly, a 2024 randomized clinical trial of Bifidobacterium lactis HN019, another probiotic strain studied for constipation, found no meaningful improvement in complete spontaneous bowel movements compared with placebo after eight weeks.[3] This is a useful counterweight to the more positive meta-analyses above, and it reinforces why evidence for one probiotic strain should not automatically be generalized to every product containing a related species.
On the product-specific question, the picture is thinner. Physician’s Choice’s official strain dossier confirms B. lactis BL-04 among the 10 named strains in this formula. B. lactis is a species that includes strains studied in constipation research, but probiotic effects can be strain-specific, so evidence from a particular B. lactis strain should not automatically be applied to this product.
We did not identify a published, peer-reviewed clinical trial testing the complete 60 Billion Probiotic formula specifically for constipation, as opposed to individual strains studied separately by other researchers using other products.
This distinction matters: probiotic research is generally strain-specific and even formula-specific, so evidence for an individual strain does not automatically transfer to a multi-strain blend containing that strain at an unknown individual dose.
For a broader comparison of which individual strains have the strongest constipation evidence, see our related guide on the best probiotics for constipation and bloating, which reviews Physician’s Choice alongside five other commonly discussed products.
How Does It Work?
Physician’s Choice 60 Billion Probiotic is built around three basic mechanisms, according to the brand’s own product description:[5]
- Acid resistance. Physician’s Choice says the acid-resistant capsule, made from hypromellose and gellan gum rather than gelatin, is designed to help protect the probiotic contents as they pass through the stomach.
- Gut flora support. The brand states that the included strains are intended to help support the existing microbial population, which it says can be depleted by stress, diet, antibiotics, and general aging.
- Prebiotic feeding. The included organic prebiotic blend is sourced from Jerusalem artichoke root, acacia fiber, and chicory root. It is intended to provide fermentable substrate for beneficial bacteria, although the specific effect of this blend has not been directly tested in a clinical trial of the finished product.
Probiotics can interact with the gut environment and may influence microbial activity and gastrointestinal function, but the clinical relevance of these mechanisms varies by strain and has not been established for the finished Physician’s Choice formula. Prebiotic fermentation can produce short-chain fatty acids and may influence gut function, but again, this has not been directly tested for this specific formula. Probiotics are also generally understood to interact transiently with the gut rather than to permanently “colonize” it.
Physician’s Choice Probiotic Ingredients
According to the brand’s current product information, one capsule of Physician’s Choice 60 Billion Probiotic contains the following:[5]
- 60 billion CFUs total, from a multi-strain probiotic blend
- 150 mg organic prebiotic blend (organic Jerusalem artichoke root, organic acacia fiber, organic chicory root/inulin)
- Vegetable capsule shell (hypromellose, gellan gum)
The product is labeled Non-GMO Project Verified and is described as free from dairy, soy, gluten, wheat, peanuts, tree nuts, sesame, eggs, fish, shellfish, artificial colors, sweeteners, and preservatives.[5] It does not require refrigeration.
If you are managing constipation alongside a specific dietary restriction or sensitivity, our guide on why fiber isn’t working for your constipation covers how ingredient sensitivities can affect which supplements are appropriate for you.
60 Billion CFUs and Probiotic Strains
CFU, or colony-forming unit, is a measure used to estimate the number of viable microorganisms capable of forming colonies under specified test conditions. A higher CFU count is not automatically better; strain identity and the amount of research behind each specific strain generally matter more than raw count alone. Physician’s Choice states that the product provides 60 billion CFU through expiration, rather than only at the time of manufacture.[5]
A note on the strain list: Physician’s Choice currently identifies 10 named strains in its official strain dossier, including B. lactis BL-04. Because formulations and labeling can change over time, check the current Supplement Facts panel on the bottle you purchase to confirm the exact strain names and labeling.[5]
Bifidobacterium lactis is among the probiotic species with published constipation research, although results vary by strain and formulation. Although Bifidobacterium lactis as a group has shown benefits in some constipation research, those findings do not establish that the specific BL-04 strain in this product provides the same benefit.
As the 2024 JAMA-published trial on Bifidobacterium lactis HN019 shows, not every strain within a species produces the same result.[3] For a strain-by-strain breakdown of which codes have the strongest published evidence, see our guide to the best probiotic strains for constipation and bloating.
How Long Does It Take to Work?
According to the brand, some customers may notice a difference within 2 to 4 weeks of consistent use.[5] This is a marketing claim rather than evidence from a clinical trial of the finished product. The current product page also states that best results may be seen after a few months of consistent use.[5]
Clinical trials evaluating probiotics for constipation commonly assess outcomes over several weeks rather than after only a few days.[1] If you decide to try it, several weeks of consistent use gives you a more reasonable period for reassessment than expecting an effect within a few days. That does not mean everyone should expect a benefit by then, and the brand itself says that best results may take longer.[5]
Physician’s Choice Probiotic Side Effects
Physician’s Choice does not publish a dedicated side effects section on its official product page, so the guidance below draws on general research about probiotic safety rather than data specific to this product.
Probiotics generally have a favorable safety profile in healthy adults, with clinical reviews describing them as well tolerated overall.[7] Mild gastrointestinal symptoms such as gas or bloating can occur when starting a probiotic and are often temporary. This can be an expected part of starting a new supplement, but persistent, severe, or worsening symptoms should not simply be assumed to be a normal adjustment; if that happens, stop use and check with a healthcare provider rather than pushing through it.
You should talk to a healthcare provider before starting Physician’s Choice Probiotic, or any probiotic, if you:[7]
- Have a weakened immune system, are seriously ill, or have a medical condition that may make probiotic use inappropriate for you
- Are recovering from major surgery or are otherwise under close medical care
- Are considering giving a probiotic to an elderly family member with multiple health conditions; see our guide on constipation relief for elderly adults at home for additional context
If you are pregnant or breastfeeding, talk with your healthcare provider before starting this supplement.
These are situations where a conversation with a provider is a sensible precaution, not a signal that probiotics are known to be unsafe for everyone in these groups.
How to Take Physician’s Choice Probiotic
Per the official product label, the recommended use is straightforward:[5]
- Take 1 capsule daily, with or without food.
- Take it at roughly the same time each day, since consistency appears to matter more than the specific time of day chosen.
- Store the bottle in a cool, dry place. No refrigeration is required.
- Give the product several weeks of consistent use before reassessing whether it is helping, while following the product label and your healthcare provider’s advice.
If you are combining a probiotic with a fiber supplement or a laxative, our guide on the best OTC laxatives for constipation explains how these approaches generally work through different mechanisms. Whether they should be combined depends on your individual symptoms, medications, and medical history, so check with a doctor or pharmacist if you are taking prescription medication or managing a chronic condition.
Physician’s Choice Probiotic vs Other Constipation Products
Physician’s Choice 60 Billion Probiotic is a multi-strain daily probiotic marketed for digestive and immune support.
| Product | Labeled Potency* | Strains | Key Distinction |
|---|---|---|---|
| Physician’s Choice 60 Billion Probiotic | 60 billion CFU | 10-strain blend, with prebiotic | Prebiotic blend included, once daily |
| Seed DS-01 Daily Synbiotic | 53.6 billion AFU† | 24, fully coded | AFU measurement; fully coded strains |
| VSL#3 | 112.5 billion CFU | 8 | Higher labeled CFU count |
*Potency and formulation can change; check the current product label before purchasing. †AFU (Active Fluorescent Units) and CFU are different measurement systems and should not be treated as directly equivalent.
These labeled potency figures are product-specific and should not be interpreted as a measure of clinical effectiveness or as a direct ranking of products.
Seed DS-01 lists fully coded strains, while Physician’s Choice currently lists 10 named strains on its Supplement Facts information. The products also use different potency measurements, so their labeled numbers should not be treated as directly equivalent. Compared with VSL#3, Physician’s Choice has a lower labeled CFU count and does not require refrigeration.
The formulations, strain compositions, dosing, and intended uses of these products differ, so CFU count alone does not establish which product is better for constipation. For a full breakdown of six commonly compared products, see our complete best probiotics for constipation and bloating guide.
Pros and Cons
Pros
- 60 billion CFU in a once-daily capsule
- Includes a 150 mg organic prebiotic blend alongside the probiotic strains, making it a probiotic-plus-prebiotic formula
- Marketed with Bifidobacterium lactis, a species with published constipation research, though results vary by strain and formulation
- Acid-resistant, vegan capsule; no refrigeration required
- The brand currently offers a 60-day money-back guarantee for purchases made directly through its site
Cons
- The complete finished formula has not been tested in a published clinical trial specific to constipation
- The label does not provide the individual CFU amount for each strain, making it difficult to determine the dose of any single strain
- No dedicated side effects section published on the official product page
- Some people may experience temporary gas or bloating when starting a probiotic
Final Verdict
Physician’s Choice 60 Billion Probiotic is a multi-strain probiotic that includes ingredients relevant to constipation research, most notably Bifidobacterium lactis and an organic prebiotic blend. It may be a reasonable option if you are looking for a general daily probiotic, but its constipation-specific evidence is limited because the finished formula has not been tested in a published clinical trial.
That said, we would stop short of calling it a proven constipation treatment, and it’s worth keeping the two levels of evidence separate: some probiotics, at the category level, have shown benefit for constipation in meta-analyses, but that evidence is strain-specific and inconsistent, not every strain within a promising species performs the same way, and this exact finished formula has not itself been tested in a published trial.
The brand’s own claims are appropriately hedged as “support” rather than treatment, and we’d encourage you to read them the same way. If you try it, give it several weeks of consistent use before reassessing, watch for possible early gas or bloating, and do not assume persistent, severe, or worsening symptoms are simply a normal adjustment. Talk to your doctor first if you have an underlying health condition, are pregnant, or are immunocompromised.
If you want to look at the current listing and pricing, you can check Physician’s Choice 60 Billion Probiotic on Amazon. Confirm the listing is for the original 10-strain formula covered in this review, not the separate 60 Billion Advanced Probiotic.
Frequently Asked Questions
Does Physician’s Choice Probiotic help with constipation?
Physician’s Choice markets its 60 Billion Probiotic as support for occasional constipation, and it contains strains and a prebiotic blend of the type studied in constipation research. However, the finished 60 Billion Probiotic formula itself does not appear to have been tested in a published clinical trial.
Meta-analyses suggest that some probiotics may modestly improve constipation-related outcomes, but results vary substantially by strain and formulation, and this specific product’s own effectiveness has not been independently confirmed.
How long does Physician’s Choice Probiotic take to work for constipation?
Physician’s Choice states that some customers may notice a difference within 2 to 4 weeks of consistent use. This is a marketing claim rather than evidence from a clinical trial of the finished product, and the brand’s own product page also states that best results may be seen after a few months of consistent use.
Clinical trials of probiotics for constipation commonly assess outcomes over several weeks, so there is not strong evidence that this particular product should produce noticeable constipation relief within just a few days.
What strains are in Physician’s Choice 60 Billion Probiotic?
Physician’s Choice currently lists 10 probiotic strains in its 60 Billion Probiotic formula, alongside a 150 mg organic prebiotic blend. Because probiotic formulations can change over time, check the current Supplement Facts panel on your bottle to confirm the exact strain names and labeling.
Does Physician’s Choice Probiotic have side effects?
Physician’s Choice does not publish a dedicated side effects section on its official product page. Based on general probiotic safety research, mild gastrointestinal symptoms such as gas or bloating can occur when starting a probiotic and are often temporary, though persistent, severe, or worsening symptoms should not simply be assumed to be a normal adjustment.
People who are pregnant or breastfeeding, have a weakened immune system, are seriously ill, or are recovering from major surgery should speak with a healthcare provider before starting any probiotic.
Is Physician’s Choice Probiotic better than other constipation probiotics?
It depends on what you are prioritizing. Physician’s Choice 60 Billion Probiotic offers a relatively high CFU count and a prebiotic blend, but price varies by retailer, bottle size, and promotions. Products like Seed DS-01 list fully coded strains, and VSL#3 has a higher labeled CFU count.
The formulations, strain compositions, dosing, and intended uses differ, so CFU count alone does not establish which product is better for constipation, and no single product has been shown in head-to-head trials to outperform the others specifically for this purpose.
Affiliate Disclosure: This article may contain affiliate links. If you purchase through these links, we may earn a commission at no additional cost to you. This does not influence our editorial process, product selection, or opinions expressed in this review.
Medical Disclaimer: The information in this article is for general informational and educational purposes only. It does not constitute medical advice and is not a substitute for professional medical consultation, diagnosis, or treatment. Always talk to a qualified healthcare provider before starting any new supplement, especially if you have an existing health condition, are pregnant, or are immunocompromised.
References
- van der Schoot A, Helander C, Whelan K, Dimidi E. Probiotics and synbiotics in chronic constipation in adults: A systematic review and meta-analysis of randomized controlled trials. Clin Nutr. 2022;41(12):2759-2777. doi:10.1016/j.clnu.2022.10.015. PMID: 36372047.
- Garzon Mora N, Jaramillo AP. Effectiveness of Probiotics in Patients With Constipation: A Systematic Review and Meta-Analysis. Cureus. 2024;16(1):e52013. doi:10.7759/cureus.52013. PMC: PMC10854359.
- Cheng J, et al. Eight-Week Supplementation With Bifidobacterium lactis HN019 and Functional Constipation: A Randomized Clinical Trial. JAMA Netw Open. 2024;7(10). doi:10.1001/jamanetworkopen.2024.36888.
- Dimidi E, Christodoulides S, Fragkos KC, Scott SM, Whelan K. The effect of probiotics on functional constipation in adults: a systematic review and meta-analysis of randomized controlled trials. Am J Clin Nutr. 2014;100(4):1075-1084. doi:10.3945/ajcn.114.089151.
- Physician’s Choice. 60 Billion Probiotic product page. Accessed September 2026. physicianschoice.com/products/probiotic-60-billion. Physician’s Choice. Strain Dossier. Accessed September 2026. physicianschoice.com/pages/strain-dossier.
- Physician’s Choice. Scientific Advisory Board. Accessed September 2026. physicianschoice.com/pages/physicians-choice-scientific-advisory-board.
- National Institutes of Health, Office of Dietary Supplements. Probiotics: Fact Sheet for Health Professionals. Accessed September 2026. ods.od.nih.gov/factsheets/Probiotics-HealthProfessional.
