Douglas Laboratories Hydrolyzed Collagen+
Brand: Douglas Laboratories · Form: POWDER [E0162] On Market
Our assessment
The evidence shows that the primary active ingredient in this product, calcium, is well-established for supporting bone health, but it comes with significant safety considerations. Our assessment: you should only consider this supplement if you have a confirmed need for additional calcium beyond what you get from food, as the data reveals important risks.
How it works
Think of calcium as a builder and messenger for your body. It supports bone density through bone mineralization and helps your muscles relax and nerves signal properly [NIH ODS]. This makes it essential for your skeleton and nervous system, though collagen’s role in this specific product requires more research.
Safety profile
FDA has received 592,059 total adverse event reports across all supplement categories, though specific numbers for this product are not available. The data on calcium warns that high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. Side effects from excessive calcium include constipation, nausea, weight loss, extreme tiredness, frequent urination, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. You should also know that calcium can reduce absorption of medications like bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Start with food sources first. If you must supplement, avoid exceeding 1,200 mg of total calcium daily from all sources unless directed by your doctor. Take this product with food and separate it from your thyroid medication or antibiotics by at least two hours [NIH ODS]. Do not take this supplement without first discussing your kidney function, heart health, and current medications with your healthcare provider.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Douglas Laboratories |
|---|---|
| Serving Size | |
| Contents | 140.0 Gram(s) 4.9 Ounce(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