Grass-fed vs. conventional: Why the source actually matters.

The source of collagen matters more than many brands admit. Grass-fed, pasture-raised cattle produce hides and connective tissue with a measurably different fatty-acid and amino-acid profile compared with conventional feedlot-sourced material.

Beyond the nutrient profile, the sourcing standard has downstream implications for heavy metals, antibiotic residues, and the environmental impact of the supply chain — all of which we test and audit at the batch level.