21st Century Cranberry Plus Probiotic
Brand: 21st Century · Form: TABLET [E0155]
Our assessment
The evidence shows that this supplement combines cranberry and probiotics, but the available data does not provide specific health benefits or clinical trials for this exact combination product. Data not available for this specific formulation. The primary ingredient with supporting data is calcium, which is listed on the label as a separate ingredient [NIH ODS].
How it works
Calcium supports bone mineralization and neuromuscular relaxation [NIH ODS]. Cranberry is traditionally used for urinary tract health, but no specific mechanism data is provided for this product. Probiotics support digestive health by promoting beneficial gut bacteria, but no specific strain or dosage data is available here. Data not available for cranberry or probiotic mechanisms in this product.
Safety profile
FDA received 592,059 total adverse event reports across all supplements. For calcium specifically, high intakes may increase the risk of heart disease and prostate cancer. High calcium levels can cause poor muscle tone, poor kidney function, constipation, nausea, weight loss, extreme tiredness, frequent urination, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Calcium can reduce absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Data not available for side effects specific to cranberry or probiotics in this product.
Our recommendation
You should consult your healthcare provider before starting this supplement, especially if you take medications for osteoporosis, thyroid conditions, or bacterial infections. Data not available to support a specific daily dose or benefit for this combination product. Rely on your doctor's guidance rather than self-prescribing this product [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | 21st Century |
|---|---|
| Serving Size | |
| Contents | 60.0 Tablet(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