  To empower online grocery shoppers in making nutritionally and
environmentally informed decisions, we investigate the efficacy of the
Scale-Score, a label combining nutritional and environmental information to
highlight a product's benefit to both the consumer's and the planet's health,
without obscuring either information. We conducted an experimental study in a
mock online grocery environment, and assessed label efficacy. We find that the
Scale-Score supports nutritious purchases, yet needs improving regarding
sustainability support. Our research shows first insights into design
considerations and performance of a combined yet disjoint food label.
