GNC Preventive Nutrition Advanced Complete Body Cleansing 14-Day Program Cleansing Fiber Sachet
Brand: GNC Preventive Nutrition · Form: POWDER [E0162]
Our assessment
The evidence shows that this product contains calcium, a mineral essential for bone health. However, our assessment is that a 14-day "cleansing" program is not supported by credible scientific data for detoxification or weight loss. The primary active ingredient with established benefits is calcium, but the format of this product does not align with standard dietary supplement recommendations for general health [NIH ODS].
How it works
Calcium works as a master regulator for your body. It supports bone mineralization, helps your muscles relax after contracting, and is critical for nerve signaling [NIH ODS]. Think of it as the structural foundation for your skeleton and a key player in how your nerves and muscles communicate. The "cleansing fiber" component of this product may support bowel regularity, but specific data on this product's formula is not available.
Safety profile
FDA has received 592,059 total adverse event reports across all supplements, but specific data for this product is not available. For calcium specifically, high intakes can cause constipation, nausea, and extreme tiredness. There is also some research suggesting that high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. Calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, and levothyroxine [NIH ODS].
Our recommendation
We recommend you focus on getting your calcium from food sources like dairy, leafy greens, and fortified foods. If you need a calcium supplement, choose a standard daily product rather than a short-term "cleansing" program. Talk to your doctor before starting this product, especially if you take any medications or have a history of kidney stones or heart conditions [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | GNC Preventive Nutrition |
|---|---|
| Serving Size | |
| Contents | 5.0 Cleansing Fiber Sachet(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