The Calcium‑fortified Orange Juice ecosystem comprises a defined set of upstream, midstream, and downstream actors that collectively generate nutritional value and commercial returns. Upstream activities involve citrus growers, packaging material manufacturers, and calcium‑ingredient suppliers that provide the raw inputs required for fortification. Midstream functions are performed by juice processors, equipment manufacturers, and technology integrators that blend, dose, and stabilize calcium within the juice matrix while ensuring product safety. Downstream participants include logistics providers, wholesale distributors, retail chains, and ultimately the consumer who derives the health benefit. Value is captured through cost‑efficient sourcing, processing yields, compliance with nutrient claims, and retail margin structures.