Nature's Way Fortify Optima Immune Probiotic 50 Billion
Brand: Nature's Way · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that while the product Nature's Way Fortify Optima Immune Probiotic 50 Billion contains no calcium, the ingredient calcium itself has a well-established role in bone health. Our assessment is that for general bone support, calcium is effective, but you must be careful with dosage and timing to avoid risks [NIH ODS].
How it works
Think of calcium as a structural building block for your bones. It supports bone density and mineral deposition, and it also plays a role in neuromuscular relaxation and nerve signaling [NIH ODS].
Safety profile
The FDA received a total of 592,059 adverse event reports for all supplements, though specific reports for this product are not isolated. For calcium specifically, high levels can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [FDA data] [NIH ODS]. Some research also suggests that high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS].
Our recommendation
Our recommendation is to focus on getting calcium from food sources and to be aware of medication interactions. Calcium can reduce the absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Data not available on the specific probiotic product's effects, so consult your pharmacist before adding any supplement to your routine.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Nature's Way |
|---|---|
| Serving Size | |
| Contents | 30.0 Delayed-Release 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