NOW Probiotic-10 100 Billion
Brand: NOW · Form: CAPSULE [E0159]
Our assessment
The evidence shows that while the product label lists specific probiotic strains, the active ingredient with the most available safety data is not a traditional vitamin or mineral. Probiotics are generally considered safe for most people, but specific data on the 100 billion CFU dose is limited. Our assessment is that this high-potency probiotic may support digestive health, but you should be aware of the limited regulatory oversight for dietary supplements.
How it works
Probiotics work by introducing live beneficial bacteria to your gut microbiome. They help maintain a healthy balance of intestinal flora, which can support digestion and immune function. Think of them as reinforcements for your gut's ecosystem — they compete with harmful bacteria and help break down food components your body cannot digest on its own. Data not available for specific strain mechanisms from the provided sources.
Safety profile
The FDA has received a total of 592,059 adverse event reports across all dietary supplements [FDA data]. For this specific product, data not available on individual report counts. Because this is a very high dose (100 billion CFU), you may experience temporary gas or bloating when starting the supplement. People with weakened immune systems or those taking immunosuppressant medications should consult a doctor before use. Data not available for specific side effect report counts from the provided FDA data.
Our recommendation
Start with a lower dose if you are new to probiotics, then gradually increase. Store the product according to label instructions to maintain potency. If you have a compromised immune system or are critically ill, do not take this supplement without medical supervision. Data not available for specific dosage guidelines from the provided sources [NIH ODS] [FDA data].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 30.0 Veg Capsule(s) |
| Market Status | Off Market |
How to Read This Label
Supplement labels contain several key sections regulated by the FDA:
- Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
- Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
- % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
- Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
- Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.
Source: FDA Dietary Supplement Labeling Guide