BUBS Naturals Collagen Protein Unflavored

Our assessment

The evidence shows that this collagen product is primarily a protein supplement, and while it contains calcium as an ingredient, the specific amount per serving is not provided in the data. Our assessment is that the primary benefit you can expect is from the protein content, not from calcium. The data on calcium is clear: it is critical for bone health, but the amount you get from this product is unknown [NIH ODS].

How it works

Think of calcium as a structural builder for your bones. It supports bone density and mineral deposition, and it also plays a role in muscle relaxation and nerve signaling [NIH ODS]. However, because the exact calcium content in this product is not specified in the data, you cannot rely on it as a primary source of this mineral. The collagen protein itself works by providing amino acids that support connective tissues.

Safety profile

FDA received 592,059 total adverse event reports across all supplements, but specific report counts for this product are not available in the data. For calcium specifically, high intakes can increase the risk of heart disease and prostate cancer. 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

Data not available to determine if this product provides a meaningful amount of calcium. If you are using this for protein, it is likely safe for most people. However, do not rely on it to meet your calcium needs. For bone health, you should look for a dedicated calcium supplement with a known dosage, and always take calcium separately from the medications listed above to avoid absorption issues [NIH ODS].

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