Product Label

Douglas Laboratories Collagen Forte

Brand: Douglas Laboratories · Form: CAPSULE [E0159] On Market

Our assessment

Our assessment: You are considering a collagen supplement, but the data provided does not include specific evidence for collagen itself. The primary ingredient tracked in the data is calcium. For bone health, the evidence shows that calcium supports bone density and mineral deposition [NIH ODS]. However, you do not need to rely solely on supplements; you can meet your needs through diet first.

How it works

Think of calcium as a building block for your skeleton. It works through bone mineralization to maintain strong bones and supports neuromuscular relaxation for proper muscle and nerve signaling [NIH ODS]. Without adequate calcium, your body may pull it from your bones, which can weaken them over time.

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 [NIH ODS]. Side effects from high blood and urine calcium levels include 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]. Report count for calcium-specific events is not available in the data.

Our recommendation

Our recommendation: Start with food sources of calcium before turning to supplements. If you do supplement, be aware that calcium can reduce absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Data on collagen itself is not available, so we cannot make a specific recommendation for this product.

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandDouglas Laboratories
Serving Size
Contents300.0 Capsule(s)
Market StatusOn 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

Original Label

View Full DSLD Label (PDF)

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