“保健品”常见的英文表达是 health supplement 或 dietary supplement。
health supplement:更侧重于强调对健康有益的补充品,应用较为广泛。例如:Many people take health supplements to improve their overall well-being.(很多人服用保健品来改善整体健康状况。)
dietary supplement:更强调是饮食方面的补充剂,在营养学、医学相关语境中较为常用。例如:The doctor recommended a specific dietary supplement for his condition.(医生针对他的状况推荐了一种特定的保健品 。)