Douglas Laboratories Collagen Forte
Brand: Douglas Laboratories · Form: CAPSULE [E0159]
Our assessment
The evidence shows that Douglas Laboratories Collagen Forte contains calcium as a key ingredient. For calcium, our assessment is that it is a well-established mineral for bone health, but you need to be careful with dosing. The data confirms that calcium supports bone density and mineralization, as well as muscle relaxation and nerve signaling [NIH ODS]. However, high intakes may carry risks, so you should approach this supplement with a clear understanding of your total daily calcium intake from all sources.
How it works
Think of calcium as a structural builder for your skeleton. It works through bone mineralization to deposit minerals into your bone matrix, helping maintain density and strength. Calcium also supports neuromuscular relaxation, meaning it helps your muscles relax and your nerves send signals properly [NIH ODS]. This makes it important not just for bones, but for everyday muscle function.
Safety profile
The FDA has received a total of 592,059 adverse event reports across all dietary supplements, though specific report counts for calcium alone are not available. For calcium specifically, some research suggests that high intakes might increase the risk of heart disease and prostate cancer. High levels of calcium in the blood and urine 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 the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Start by reviewing your total daily calcium intake from food and other supplements. Do not exceed the recommended dietary allowance without medical supervision. If you take any medications listed above, separate your calcium supplement by at least two hours to avoid absorption issues [NIH ODS]. For specific dosing guidance for this product, data not available — consult your healthcare provider for a personalized plan.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Douglas Laboratories |
|---|---|
| Serving Size | |
| Contents | 300.0 Capsule(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