Doctor's Best Collagen Types 1 & 3 1000 mg
Brand: Doctor's Best · Form: TABLET [E0155]
Our assessment
The evidence shows that Doctor's Best Collagen Types 1 & 3 1000 mg provides a specific form of collagen, but the primary data we have relates to its calcium content. Our assessment is that you should be aware of the potential for high calcium intake, as some research suggests it might increase the risk of heart disease and prostate cancer [NIH ODS]. Data not available on the specific benefits of collagen types 1 and 3 from this product.
How it works
Think of calcium as a critical structural component — it supports bone density and mineral deposition through bone mineralization, and it also plays a role in neuromuscular relaxation, supporting muscle relaxation and nerve signaling [NIH ODS]. The collagen in this product is designed to support connective tissues, but specific data on its mechanism for this formulation is not available.
Safety profile
Based on FDA data, there have been 592,059 total adverse event reports across all supplement categories. For calcium specifically, high levels 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
Our recommendation is to be cautious with this supplement if you are already taking calcium from other sources. You should monitor your total calcium intake and consult your healthcare provider, especially if you take any of the medications listed above. Data not available for a specific dosage recommendation for collagen types 1 and 3 from this product.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Doctor's Best |
|---|---|
| Serving Size | |
| Contents | 180.0 Tablet(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