A 40 billion CFU probiotic is a daily habit, not a one-time fix, and the first 30 days are mostly about consistency. With Probiotic 40+, one bottle is exactly that first month: 60 capsules, two a day, one during the day and one in the evening. This guide walks through what that month looks like, what is worth keeping track of, and when to check in with your healthcare provider.
Key takeaways
- One bottle of Probiotic 40+ is a 30-day supply at the label's two capsules a day.
- The label directs one capsule during the day and one capsule in the evening, with no more than two capsules per day.
- Consistency matters more than the exact hour, so tie each capsule to something you already do.
- Gut comfort is personal, so a short daily note is more useful than guessing at the end of the month.
What a 40 billion CFU probiotic actually means
CFU stands for colony-forming units, the standard way to count live bacteria in a probiotic. A 40 billion CFU probiotic is a higher-count formula, but the number is only one part of the label. The strains matter just as much, and so does whether the bacteria are protected on the way through the stomach.
Probiotic 40+ delivers 40 billion CFU per 2-capsule serving across four named strains:
- Lactobacillus acidophilus (La-14)
- Bifidobacterium lactis (Bl-04)
- Lactobacillus plantarum (Lp-115)
- Lactobacillus paracasei (Lpc-37)
The capsules use MAKTREK® Bi-Pass delivery, designed so more of the bacteria survive stomach acid, and the formula adds a complex marine polysaccharide and a fructooligosaccharide (FOS) prebiotic to feed them. It helps replenish healthy bacteria, helps boost digestive health and helps the immune system.* One honest note: this is a proprietary blend, so the 40 billion CFU total is disclosed but the per-strain counts are not.
Your first 30 days with a 40 billion CFU probiotic, week by week
There is no universal timeline for how a probiotic feels, and anyone who promises one is guessing. What you can control is the routine. The table below is a practical way to use the first bottle.
| Week | Focus | What to do |
|---|---|---|
| Week 1 | Set the routine | Pick your two anchors (for example, lunch and your evening wind-down) and start a simple note on your phone. |
| Week 2 | Stay steady | Keep both capsules every day. Avoid adding several new foods or supplements at once, so you can tell what is doing what. |
| Week 3 | Notice | Read back over your notes: meals, digestive comfort, regularity, sleep, stress. |
| Week 4 | Review | Decide whether to continue, and bring your notes to your healthcare provider if you have questions. |
The National Center for Complementary and Integrative Health (NCCIH) notes that most probiotic research runs for weeks rather than days, and that effects can differ from one strain and one person to the next. That is why a full bottle, taken as directed, is a fairer trial than a few scattered days.
How to fit two capsules into a real day
At two capsules a day, a single bottle lasts the full month. For best results the label splits them, one in the daytime and one in the evening, and never more than two in a day. Doing it every day matters more than hitting a set time, so link each capsule to a habit you already have. A few ways people make that stick:
- Daytime capsule: keep the bottle where you eat lunch or next to your water bottle at work.
- Evening capsule: pair it with a fixed evening step, such as setting out tomorrow's clothes or brushing your teeth.
- Travel: a small, dry pill case holds a few days' worth; keep the main bottle closed and at home.
- Missed one? Simply carry on with the next scheduled capsule. Do not double up, because the label caps the day at two.
If you already have an established gut routine with fermented foods and fiber, keep it. A capsule is meant to sit alongside good food habits, not replace them. Our guide to daily gut health habits covers the food side.
What to track during the first month
Gut comfort is personal, so a short daily note is more useful than guessing at the end of the month. You do not need an app. Three lines a day is enough:
- Did I take both capsules? (yes / no)
- How did my digestion feel today? (a word or two)
- Anything unusual: a big meal, travel, poor sleep, a stressful day?
NCCIH reports that when side effects from probiotics occur in healthy people, they are usually mild and digestive, such as gas. If anything feels more than mild, or simply does not sit right with you, stop and talk to your healthcare provider.
Who should check with a provider first
The label warnings apply to everyone: do not exceed the recommended dose, and pregnant or nursing mothers, anyone under 18, and anyone with a known medical condition should consult a physician before using this or any dietary supplement. A few practical details are also worth knowing before you start:
- The capsule shell is vegetable, but the L-leucine in the formula is sourced from duck feathers, so Probiotic 40+ is not suitable for a plant-based diet.
- The rice maltodextrin is corn-derived.
- It is gluten free, sugar free, lactose free and free of the top 9 allergens.
Why testing matters for a probiotic
A probiotic is only as good as what is actually inside the capsule. Every batch of Probiotic 40+ is third-party tested for purity and potency by an outside lab, and it is manufactured in USA with globally sourced materials in an NSF-certified, GMP-certified, FDA-registered facility. You can read how that works on our Our Standards page, and our guide to reading a certificate of analysis shows what a lab report covers. Every order is backed by our 60-day guarantee.
If you are comparing labels, our breakdown of CFU count vs. probiotic strains explains why the strain list deserves as much attention as the headline number.
Frequently asked questions about a 40 billion CFU probiotic
How long should I take a 40 billion CFU probiotic before deciding if it suits me?
Give it at least the full first bottle, taken as directed. Probiotic research usually runs for weeks, and a month of steady use with simple notes gives you something real to look back on. If you have questions at that point, bring your notes to your healthcare provider.
Can I take both Probiotic 40+ capsules at the same time?
The label says to take two capsules once daily and, for best results, to take one during the day and one in the evening. Splitting them is the suggested routine. Either way, do not take more than two capsules in a day.
Do I need to keep Probiotic 40+ in the fridge?
The label says to store it in a cool, dry place. Keep the lid closed, keep the bottle away from the stove, a sunny windowsill or a steamy bathroom, and keep it out of reach of children.
What if I miss a capsule?
Just take the next one at its usual time. Do not double the next dose, because the label limits the day to two capsules. A missed capsule now and then is normal; the habit over the month is what counts.
Is Probiotic 40+ suitable for vegans?
No. The capsule shell is vegetable, but the L-leucine in the formula comes from duck feathers, so it is not suitable for a plant-based diet. It is gluten free, sugar free and lactose free.
Related reading from our Wellness Hub
- Inside Probiotic 40+: 40 Billion CFU and Four Strain Codes Explained
- Best Time to Take Probiotics: Why Probiotic 40+ Splits the Dose
- How Long Do Probiotics Take to Work?
Sources
- NCCIH: Probiotics — What You Need To Know
- NIH Office of Dietary Supplements: Probiotics fact sheet for consumers
Individual results vary.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
