Bronson UC-II Collagen with Undenatured Type II Collagen

Our assessment

The evidence shows that Bronson UC-II Collagen with Undenatured Type II Collagen is a product for which we have limited specific data. Our analysis relies on the ingredient Calcium, which is listed on the label. For general bone health support, calcium is well-established, but we cannot assess the specific benefits of the undenatured Type II collagen component based on the data provided. Data not available for the product's specific collagen claims.

How it works

Calcium acts as a master regulator for bone health. It supports bone mineralization and density, and it also plays a role in neuromuscular relaxation and nerve signaling [NIH ODS]. Think of it as the primary building block your body uses to keep your skeleton strong and your nerves communicating effectively.

Safety profile

FDA has received a total of 592,059 adverse event reports across all supplements, though specific reports for this product are not available. Based on the calcium component, safety concerns include 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 medications like bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

If you are considering this product for joint health, we must note that data for the specific collagen ingredient is not available for review. For general bone health, ensure your total calcium intake from food and supplements does not exceed safe limits. Always separate calcium supplement doses from certain medications by at least two hours to avoid absorption issues [NIH ODS]. Speak with your doctor before starting, especially if you have a history of kidney stones or heart conditions. Data not available for a definitive recommendation on the product's primary collagen claim.

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