Sundown Naturals Hydrolyzed Collagen
Brand: Sundown Naturals · Form: SUPPLEMENT FORM, OTHER [E0172] On Market
Our assessment
The evidence shows that Sundown Naturals Hydrolyzed Collagen contains calcium, a mineral essential for bone health. However, we must be clear: based on the data provided, this product’s primary active ingredient is calcium, not collagen peptides — and the specific collagen formulation is not supported by any study in the provided data set. For general calcium needs, the data supports its role in bone mineralization and neuromuscular relaxation [NIH ODS].
How it works
Think of calcium as a structural builder for your skeleton. It supports bone density and mineral deposition, and it helps your muscles relax and your nerves signal properly [NIH ODS]. If you are using this product for joint or skin health, however, the data does not provide any studies on hydrolyzed collagen itself — that benefit is not supported by the information we have.
Safety profile
FDA received 592,059 total adverse event reports across all supplement categories, though specific numbers for this product are not available in the data set. For calcium specifically, high intakes may increase the risk of heart disease and prostate cancer. Very high levels can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent urination, 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
If you need a calcium supplement, this product may help you meet your daily needs, but the data does not confirm any unique benefit from the hydrolyzed collagen ingredient. Check your total calcium intake from food and other supplements to avoid exceeding safe levels. If you are taking any prescription medications, separate calcium intake by at least two hours to prevent absorption issues [NIH ODS]. For collagen-specific benefits, data is not available in this review.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Sundown Naturals |
|---|---|
| Serving Size | |
| Contents | 120.0 Caplet(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