WordNet sense 1 (a fertilizer that is derived from animal or vegetable matter):

organic fertiliser, organic fertilizer

WordNet sense 2 (conducive to or characteristic of physical or moral well-being):

wholesome

WordNet sense 3 (conducive to good health of body or mind):

healthful

WordNet sense 4 (constitutional in the structure of something (especially your physical makeup)):

constituent, constitutional, constitutive

WordNet sense 5 (basic and fundamental):

essential