Healthy Delights Nature Fuel Grass-Fed Collagen Peptides Unflavored

Our assessment

The evidence shows that the primary active ingredient in this product is calcium from collagen peptides. Our assessment: calcium is a well-studied mineral, but the specific form in this product (grass-fed collagen peptides) does not have direct data linking it to the bone health benefits you might expect from calcium alone. The data does not support using this product as a primary calcium source for bone density [NIH ODS].

How it works

Think of calcium as a structural building block for your bones and a signaling molecule for your nerves and muscles. It supports bone mineralization and neuromuscular relaxation [NIH ODS]. However, the collagen peptides in this product may not provide the same bioavailability as standard calcium supplements. The mechanism for collagen peptides themselves is not specified in the data provided [Data not available].

Safety profile

FDA received 592,059 adverse event reports for all dietary supplements, though specific reports for this product are not available. For calcium specifically, high intakes can increase the risk of heart disease and prostate cancer. High levels in blood and urine 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

We recommend you do not rely on this product as your primary calcium source. The data does not confirm that grass-fed collagen peptides provide the same bone health benefits as standard calcium supplements. If you need calcium for bone health, choose a supplement with a known calcium form (like calcium carbonate or calcium citrate) and a clear dosage [NIH ODS]. For collagen-specific benefits, data is not available to support any specific health claim for this product. Consult your healthcare provider before starting any new supplement, especially if you take prescription medications [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