NOW Probiotic-10 100 Billion
Brand: NOW · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that this product contains calcium, which has a well-established role in bone health. However, you should be aware that the specific probiotic strains and their 100 billion CFU count are not covered by the data provided, so we cannot make a specific assessment of this product's effectiveness. For calcium, the data confirms it supports bone density and neuromuscular relaxation [NIH ODS].
How it works
Think of calcium as a structural builder for your bones and a signal messenger for your muscles and nerves. It supports bone mineralization, which is the process of depositing minerals into your skeleton to keep it strong, and it helps your muscles relax and your nerves transmit signals properly [NIH ODS].
Safety profile
FDA received 592,059 adverse event reports for all ingredients in this category. Regarding calcium specifically, high intakes carry risks. Side effects reported include constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, and abnormal heart rhythms [NIH ODS]. There is also a potential increased risk of heart disease and prostate cancer with high calcium intakes [NIH ODS]. Additionally, calcium can reduce the absorption of medications like bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Because the data on the specific probiotic blend is not available, we cannot recommend this product over other probiotics. If you are interested in calcium, you should get your intake from food first and only supplement if advised by your doctor. Be careful not to exceed the recommended daily intake, and always take calcium supplements separately from the medications listed above [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 30.0 Veg Capsule(s) |
| Market Status | On 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