Which word describes something that promotes health?

The word "salubrious" specifically refers to something that is conducive to health or well-being. It often describes environments, conditions, or practices that nourish and support good health. For example, one might refer to fresh air, a healthy diet, or a peaceful atmosphere as salubrious, as these elements are associated with promoting physical and mental well-being. In contrast, the other options indicate negative or neutral impacts on health. "Harmful" and "detrimental" clearly denote adverse effects on health, while "neutral" suggests a lack of effect, neither promoting nor hindering health. Thus, "salubrious" stands out as the clear and appropriate choice for something that promotes health.