Doctor's Best Fast Melt Immune Probiotic 3 Billion With Bifodan
Brand: Doctor's Best · Form: SUPPLEMENT FORM, OTHER [E0172] On Market
Our assessment
The evidence shows that this product contains calcium, a mineral essential for bone health and nerve function. However, data specific to this exact probiotic formulation is missing, so we must evaluate the ingredient directly. For general bone support, calcium is a well-studied mineral, but the benefits depend entirely on your current intake and health status [NIH ODS].
How it works
Think of calcium as a structural builder for your skeleton. It supports bone density and mineralization, and it is critical for neuromuscular relaxation—helping your muscles unwind after contracting. It also plays a role in nerve signaling, ensuring your nerves communicate properly [NIH ODS].
Safety profile
Safety data is mixed. While calcium is necessary, high intakes may increase the risk of heart disease and prostate cancer. High blood and urine levels can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent urination, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Additionally, calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. The FDA has received 592059 total adverse event reports across all supplements, but specific report counts for this product are not available [FDA data].
Our recommendation
Do not take this supplement without first assessing your dietary calcium intake and speaking with your doctor. If you are on any medications—especially antibiotics, thyroid medication, or osteoporosis drugs—separate doses by at least 2 hours. Data not available for the probiotic culture itself, so rely on the calcium alone. Start only if you have a confirmed low intake, and never exceed 1,000–1,200 mg total daily from food and supplements combined [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Doctor's Best |
|---|---|
| Serving Size | |
| Contents | 30.0 Stick Pack(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