Product Label

Nature's Way Fortify Optima Probiotic

Brand: Nature's Way · Form: CAPSULE [E0159]

Our assessment

The evidence shows that Nature's Way Fortify Optima Probiotic contains calcium, a mineral critical for bone health. Our assessment is that while calcium is essential, you need to be mindful of your total intake from all sources, as excess amounts carry risks. Data on the specific probiotic strains in this product is not available [NIH ODS].

How it works

Think of calcium as a structural builder and a signaler. It supports bone mineralization and density, and it plays a key role in neuromuscular relaxation and nerve signaling. This makes it vital for your muscles to relax properly and for your nerves to transmit messages effectively [NIH ODS].

Safety profile

FDA received 592,059 total adverse event reports for products in this category. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer. Very high levels in the blood and urine 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 [NIH ODS] [FDA data].

Our recommendation

Start by assessing your total daily calcium intake from food and other supplements. Calcium can reduce the absorption of medications like bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin, so take this product at least two hours apart from those meds. We recommend consulting your healthcare provider before adding this to your routine [NIH ODS].

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandNature's Way
Serving Size
Contents60.0 Vegetarian Capsule(s)
Market StatusOff 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

Original Label

View Full DSLD Label (PDF)

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