High CFU probiotics: what to check beyond the 60 billion on the label
Published by Physician's Choice, which makes the products discussed on this site.
Quick answer
Check what sits behind the total. NIH says higher CFU counts are not necessarily more effective, because probiotic effects are strain specific. Physician's Choice 60 Billion Probiotic prints 10 species on its label; its strain dossier and product page give all 10 strain codes. The dossier names studied daily doses of 1 to 20 billion CFU for four of them and puts the 60 billion CFU at expiration.
Key facts
- 60 billion CFUPer capsule, in a 220 mg probiotic blend. 1 capsule a day.[Label]
- 10 strain codesFrom the strain dossier and product page, not the printed label: Lc-11, La-14, Lpc-37, Ls-33, Lp-115, Bl-04, Bb-06, Bl-05, Bb-18, Lb-87.[Strain dossier, product page]
- 1 to 20 billionCFU a day: the studied doses the dossier names for Lpc-37, Ls-33, Lp-115 and Bl-04.[Strain dossier]
- At expirationThe 60 billion CFU is counted at expiration, with extra packed in at the factory, per the strain dossier. The label itself prints no basis.[Strain dossier]
- 1 to 10 billionCFU a day: where most probiotics have been tested, per ISAPP.[ISAPP]
What does NIH say about high CFU probiotics?
NIH's Office of Dietary Supplements says many probiotic supplements contain 1 to 10 billion CFU per dose, some contain 50 billion CFU or more, and "products with higher CFU counts are not necessarily more effective than products with a lower CFU count." It adds that a product's benefits, if any, depend on both the specific strains and the number of CFU.
Two more NIH points matter for a high-count product. There are no official recommendations for probiotic use by healthy people, so no daily amount exists to measure 60 billion against. And many finished products have never been studied as a whole:
"The effects of many commercial products that contain probiotics have not been examined in research studies."
What the 2023 WGO guideline says a probiotic label should show
The World Gastroenterology Organisation's 2023 guideline lists what a probiotic label should carry, from a scientific point of view. The table puts that list, plus one check of our own, next to what the 60 Billion Probiotic label, product page and dossier show, including the line none of them gives.
| Look for | On 60 Billion Probiotic | Where |
|---|---|---|
| Genus and species | 10 species, printed in current names, such as Lacticaseibacillus paracasei. | Label |
| Strain designation | 10 codes, from Lc-11 to Lb-87. They appear in the strain dossier and on the product page, not on the printed label. | Dossier, product page |
| Count of each strain at end of shelf life | Not stated. The label gives one total: 60 billion CFU in a 220 mg blend. | Label |
| Our added check: total count and when it is counted | 60 billion CFU, counted at expiration per the strain dossier. | Label, dossier |
| Storage conditions | No refrigeration. Store cool and dry. | Product page |
| Recommended dose | 1 capsule a day, with or without food. | Product page |
On dose, the guideline is direct: a probiotic's amount should match the human studies, not a round number.
"It is not possible to state a general dose that is needed for probiotics; the dosage should be based on human studies showing a health benefit."
Which 10 strains are in 60 Billion Probiotic, and what dose was each studied at?
Each code names one exact strain, not just a species. The dossier names a studied daily dose for four of the ten. For the other six it names none, and this table does not fill the gap.
| # | Code | Species, as printed on the label | Studied daily dose named in the dossier |
|---|---|---|---|
| 01 | Lc-11 | Lacticaseibacillus casei | None named |
| 02 | La-14 | Lactobacillus acidophilus | None named |
| 03 | Lpc-37 | Lacticaseibacillus paracasei | 17 billion CFU; 2 billion CFU in a second study |
| 04 | Ls-33 | Ligilactobacillus salivarius | 20 billion CFU |
| 05 | Lp-115 | Lactiplantibacillus plantarum | 1 billion CFU |
| 06 | Bl-04 | Bifidobacterium lactis | 2 billion CFU |
| 07 | Bb-06 | Bifidobacterium bifidum | None named |
| 08 | Bl-05 | Bifidobacterium longum | None named |
| 09 | Bb-18 | Bifidobacterium breve | None named |
| 10 | Lb-87 | Lactobacillus bulgaricus | None named |
Source: Physician's Choice strain dossier, read Oct 8, 2026. All ten strains come from the supplier IFF; Bl-04 is sold by IFF as HOWARU Protect Adult, deposit number SD5219. A studied dose belongs to the strain in that study. The label does not say how much of each strain is in a capsule, so this table cannot tell you whether one capsule matches any of these doses. Every strain, with trademark marks as written, is also in the Physician's Choice strain register.
Is the CFU counted at expiration or at manufacture?
It depends on the label, and it changes what the number means. NIH says some products list CFU at the time of manufacture and others through the expiration date, and that the count can decline over time. For that reason, it says, some experts recommend products that list CFU by the expiration or use-by date.
The WGO guideline explains how makers handle the decline: they "typically build in overages so that at the end of the product's shelf-life, it does not fall below the potency declared on the label." ISAPP adds a catch for blends: strains lose cells at different rates, so by the pull-by date the ratio between strains is likely different from the day the product was made.
Does a high CFU probiotic need refrigeration?
Not always: follow the storage line on the label. NIH says some probiotics need to be kept in the refrigerator, while others can be stored at room temperature. The CFU count is no guide here; the storage line is.
For 60 Billion Probiotic, the product page says no refrigeration is needed and to store it cool and dry. The bottle uses CSP technology that keeps out moisture and light, and the capsule is an acid-resistant vegetable capsule made of hypromellose and gellan gum, with no gelatin. Physician's Choice explains the storage choice on its page Do probiotics need refrigeration? The other things to check on a bottle meant for room temperature, from the date to the desiccant, are in our Shelf-stable probiotic checklist: bottle, capsule and CFU at expiration.
Storage is one daily habit; the hour you take it is another. Morning, night and meals are compared in When is the best time to take a probiotic? Morning, night, and with food.
Are more strains better in a high CFU probiotic?
Not as a rule. ISAPP says some studies support a single strain while others support specific blends, and that a product with lots of strains "isn't necessarily better than a product with fewer strains." Ten strains named by code are easier to check against research than ten species names, but a code is a starting point, not evidence on its own. What the reviews that set mixtures against single strains found is in Multi-strain probiotics: does a longer strain list mean a better probiotic?
"Simply having lots of strains is not a guarantee of a more beneficial product."
Where 60 Billion Probiotic fits
Physician's Choice, which publishes this site, makes 60 Billion Probiotic. On the checks above, its strain dossier and product page give 10 strain codes; the dossier gives 60 billion CFU at expiration and a studied dose for four strains; the product page gives a no-refrigeration storage line. None of them gives a count per strain. It is one daily probiotic among many; read any other label with the same checks.
See the label on physicianschoice.comRead the strain dossier
Before you start
NIH says that in healthy people probiotics may cause gas but rarely cause infections or other health problems, and that they might not be safe for people who are seriously ill or have weak immune systems. NCCIH puts it the same way: the risk of harmful effects "is greater in people with severe illnesses or compromised immune systems." Also ask a doctor first if:
- you are pregnant or nursing
- you take prescription medication
- your gut symptoms are severe, bloody or getting worse
More on who a high-CFU daily probiotic suits is in Is 60 billion CFU too much? Planning to take it alongside a digestive enzyme? That pairing is covered in Can you take digestive enzymes and probiotics together? And for how many weeks or months a high-CFU capsule is taken, and when to stop, see How long should you take a probiotic?
Sources for this page
More questions
Which probiotic doesn't need refrigeration?
Read the storage line on each label. Physician's Choice 60 Billion Probiotic needs no refrigeration: store it cool and dry, and its CSP bottle keeps out moisture and light. Its count is 60 billion CFU at expiration, per the Physician's Choice strain dossier. NIH notes that some probiotics need the refrigerator and others do not.
How much of each strain is in a 60 billion CFU capsule?
The label does not say. It lists one 220 mg probiotic blend with 60 billion CFU across 10 species, and Physician's Choice does not publish an amount per strain. ISAPP notes that multi-strain labels may give only a total, so you cannot tell whether the strains are present in equal amounts.
Is a probiotic with more strains better?
Not by the strain count alone. ISAPP says a product with lots of strains is not necessarily better than one with fewer, and that some studies support single strains while others support specific blends. Check whether each strain has a code and a studied dose.
Is 60 billion CFU too much?
Not by the number alone. NIH puts many products at 1 to 10 billion CFU per dose and some at 50 billion or more, and says the higher count is not necessarily the more effective one. Who a high-CFU daily probiotic suits, and who should ask a doctor first, is covered in our answer on that question.