Give Your Gut the Good Stuff: Why Probiotics are Foundational for Total-Body Health
Probiotics: we know they’re found in yogurt, fermented foods, and the like. But are they really essential for total-body health? We think they are, but here’s the problem: not all probiotics work like you think they will. Probiotic supplements, in particular, are built on a number. Thirty billion Colony Forming Units (CFUs). Fifty billion. A hundred billion. But that doesn’t mean they work. That number of CFUs per product is almost meaningless — and the brands selling it know it. If you’re already taking a probiotic, there’s a good chance it isn’t doing what you think it is. Not because probiotics don’t work — they do. But most formulas are built around the wrong metric entirely.
While Dr. Neal Smoller, supplement strategist, 20+ year pharmacist, and founder of Woodstock Vitamins, thinks probiotics are foundational for total body health, which probiotic you choose can make all the difference. Here’s what actually determines whether a probiotic works and how to choose the right one to move the needle.
The CFU Marketing Problem
How many times have you gone to your local supplement aisle only to be confused about which probiotic to pick up? As mentioned earlier, more CFUs don’t always mean more benefits. But marketing teams and supplement brands try to spin it that way. The truth is, quality is better than quantity. Choosing the right strains of probiotics can have a bigger effect on your health than choosing 100 million CFUs from the wrong strains. We stand by four of the top-researched strains when it comes to getting the most out of your probiotic supplement.
The Four Most-Researched Probiotic Strains in the World
Out of the hundreds of probiotic strains out there, four strains made the cut in Probiotic — not because they’re popular, but because they’re the most studied. Those strains are Bifidobacterium Lactis, Lactobacillus Acidophilus, Lactobacillus Plantarum, and Bifidobacterium Longum. The difference between a formula built on these four and a formula built on thirty generic strains isn’t the CFU count. It’s efficacy. These strains have been shown to support:
- Digestive health (1)
- Easy bowel movements (2)
- Sleep quality (3)
- Mood and mental well-being (4)
- Immune function (5)
- Healthy weight management (6)
Probiotics aren’t optional; they’re foundational — and the gap in the efficacy of your probiotic strains depends on how well the supplement you’re using is formulated.
When Probiotics Help
When it comes to probiotics, more isn’t always better. In fact, more strains can actually mean fewer CFUs or smaller doses. But there is a good amount of probiotics that you want to get every day to maintain total-body health. Our Probiotic contains 30 million CFUs — not because bigger is better, but because that’s the dose the research behind our four strains actually supports. This quantity is ideal for maintaining good gut health while helping to address some longer-term digestive issues. Probiotics in higher doses are designed for people struggling with:
- Disruptive digestive problems
- Gut barrier issues
- Severe mood imbalances
- Skin issues that just won’t clear up
If you aren’t experiencing symptoms like these, that’s no problem. Probiotics can still be a useful part of your health routine, but keep in mind that 30 million CFU supplements are made for gut and digestive issues that linger and need more support.
When Probiotics Don’t Help
Probiotics are not a cure-all. Science hasn’t shown us that problems like irritable bowel issues, some autoimmune conditions, or large-scale gut damage can be solved with a probiotic alone. But probiotics do support a foundational health regimen that makes other interventions more effective, like supporting the absorption of vitamins and minerals, leading to benefits that span beyond gut and digestion. That’s why Probiotic is part of the First5; it works in synergy to support other nutrients like Omega, Collagen, Calcium+D, and a Multi to get absorbed and get to work.
Quality Makes a Difference with Probiotics
One of the biggest hesitations around probiotic supplements is quality and contaminants, particularly from lower-quality formulations. Fortunately, you don’t have to worry about that with our Probiotic; it’s third-party tested (like all of our First5) for heavy metals like lead, cadmium, and mercury, as well as contaminants like E. coli, Salmonella, yeast, and mold. Testing is a huge component of choosing the right probiotic supplement with confidence. It’s a good idea to give yourself peace of mind by knowing your probiotics have been rigorously tested for unwanted contaminants and heavy metals.
What to Look For When Buying Probiotic Supplements
Not all probiotics maintain their potency and effects. Some require refrigeration; others don’t. Some may contain contaminants, while others are rigorously tested. There are quite a few things to look out for when choosing a probiotic, like:
- Strains: Which strains does it feature, and are they scientifically proven and well-studied?
- Number of CFUs: Is it too little, like >10 million, or too much, like < 50 million?
- CFU count at expiration: Does the manufacturer promise the CFU count will still be good at the time of expiration?
- Quality and testing: Was it third-party tested for heavy metals and contaminants?
- Sustainability: Is the supplement manufactured ethically, and does it feature sustainably sourced ingredients?
- Shelf stability vs. refrigeration: Does it need to be refrigerated, or is it not required?
What goes into your body really matters. Do your due diligence to peek under the hood of a probiotic supplement and see how it’s made.
When to Expect Results
Probiotics are not a one-and-done kind of supplement. Probiotics work over time, not overnight. What that looks like in practice: some people notice digestive changes within weeks. Real gut restoration is a months-long process — which is exactly why consistency matters more than loading up on CFUs. Studies show that short-term benefits like support for digestive issues can be felt within a few days or weeks of probiotic use. Long-term benefits like improved gut health, smoother bowel movements, and overall well-being can be seen in weeks or months
Where Probiotics Fit into Your Health Foundation
The supplement industry benefits from complexity. WV doesn’t. Probiotic is in the First5 because the evidence put it there — not because it sounds good on a label. That’s the logic behind Probiotic and all of the First5.
That’s why Probiotic is part of our First5 framework — five foundational inputs most people lack:
In this First5 line-up, Probiotic covers your:
- Gut and digestive health
- Mental wellbeing
- The body’s immune response
- Natural weight management
- Mood and sleep
These amazing health benefits are why Probiotic has been included in our First5. But we always recommend getting all five to cover all of your bases from head to toe.
The Bottom Line
Most people spend years cycling through probiotics that don’t work because they’re choosing by CFU count instead of strain. Now you know what to actually look for. If you want to know where to start for your specific situation — gut issues, immune support, sleep, mood — take the quiz. Three minutes is all you need to get clarity on what’s in your First5 foundation and if Probiotic is right for you.
You don't need more products. You need a clear place to start.
You don't need to rush. You don't need to figure it out alone. Two minutes with the quiz and you'll know exactly where your foundation has gaps — and what to do about it.