Natural Force Collagen Peptides Unflavored Protein

Our assessment

The evidence shows that this product provides a source of protein, but it is not a significant source of calcium. Our assessment is that for bone health or nerve function, you should not rely on this collagen supplement. The data for calcium, which is not a primary ingredient here, shows it supports bone mineralization and neuromuscular relaxation [NIH ODS]. For your specific goals, we need to look at what the product actually contains, and the provided data does not list a measurable amount of calcium in this collagen product.

How it works

Think of calcium as a building block for your skeleton and a signal conductor for your nerves and muscles. It works through bone mineralization to support density and mineral deposition, and it supports neuromuscular relaxation for proper muscle and nerve signaling [NIH ODS]. Since this collagen product is not a calcium supplement, you would need to get your calcium from other dietary sources or supplements to achieve these specific benefits.

Safety profile

Data not available for the specific side effects of this collagen product from the provided FDA data. The FDA has received a total of 592,059 adverse event reports across all supplements, but a breakdown for this specific product is not provided [FDA data]. For calcium, high intakes might increase the risk of heart disease and prostate cancer. High levels 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].

Our recommendation

We recommend you do not use this collagen product as a source of calcium. If you are seeking the benefits of calcium for bone density or nerve health, you should look for a dedicated calcium supplement. Be aware that calcium can reduce the absorption of medications like bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Always take calcium supplements separately from these medications.

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