GNC Preventive Nutrition Complete Body Cleansing Program Fiber and Prebiotic Blend
Brand: GNC Preventive Nutrition · Form: SUPPLEMENT FORM, UNKNOWN [E0177]
Our assessment
The evidence shows that this product contains calcium, a mineral with well-documented benefits for bone health. However, the specific formula of the GNC Preventive Nutrition Complete Body Cleansing Program Fiber and Prebiotic Blend is not fully detailed in the data provided. For calcium specifically, our assessment is that it is effective for supporting bone density and neuromuscular function, but you must be aware of the risks associated with high intake [NIH ODS].
How it works
Think of calcium as a structural building block and a cellular messenger. It supports bone mineralization by depositing into your skeleton, and it helps your muscles relax and your nerves signal properly [NIH ODS]. For this product to be effective, you would need to ensure you are not already getting excess calcium from other supplements or your diet.
Safety profile
The FDA has received a total of 592,059 adverse event reports for products in this category, though specific report counts for this blend are not available [FDA data]. For calcium specifically, high intakes can increase the risk of heart disease and prostate cancer. Side effects from high blood or urine calcium levels include 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]. You should also be aware that calcium can reduce the absorption of medications like bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Because the exact calcium dosage in this product is not provided, our recommendation is to proceed with caution. Do not take this product if you are already taking a calcium supplement or a multivitamin containing calcium, as excessive intake carries serious risks [NIH ODS]. Consult your doctor or pharmacist before use, especially if you take any of the medications listed above. If you choose to use this product, monitor for signs of nausea, constipation, or unusual tiredness [FDA data] [NIH ODS]. The most prudent step is to have your healthcare provider review your total calcium intake from all sources.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | GNC Preventive Nutrition |
|---|---|
| Serving Size | |
| 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