Douglas Laboratories Fiber-Plex
Brand: Douglas Laboratories · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that Douglas Laboratories Fiber-Plex is a product designed to support digestive health, primarily through its calcium content. Data not available for fiber-specific outcomes from this product. Based on the ingredient data, our assessment is that this supplement may help with bone health and nerve function, but the benefits are tied directly to calcium, not fiber [NIH ODS].
How it works
Think of calcium as a master regulator for your bones and muscles. It supports bone mineralization to maintain density and helps neuromuscular relaxation, which is essential for proper muscle function and nerve signaling [NIH ODS].
Safety profile
FDA received 592,059 total adverse event reports across all supplements. For calcium specifically, high intakes might 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 need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Calcium can also reduce absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Start by checking your current calcium intake from food before adding this supplement. If you need extra calcium, take it with food and separate from any medications by at least two hours to avoid absorption issues [NIH ODS]. Data not available for fiber-specific dosing or benefits from this product.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Douglas Laboratories |
|---|---|
| Serving Size | |
| Contents | 120.0 Capsule(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