11 Feb 2020 --- With people living longer lives than ever before, an increasing emphasis is placed on ensuring that they stay healthy into old age. This has created a lucrative market in the nutrition space, with companies rapidly innovating to address a range of needs, with muscle mass-protecting protein being a particular emphasis. In part one of its coverage, NutritionInsight speaks to key players in this space to learn more about how the face of aging is shifting away from outward appearances and why people are facing it head-on.