I obtained a juicer last week. It has been marvelous.
One juice that I have been making is kale, grapefruit, lime & ginger. The combination tastes great together. It has the bonus of making me not want to ingest anything but water for a few hours after. Totally eradicates binge eating in that time. The reason? It makes everything else taste horrid.
You can make a salad if you aren't into juicing. I would think that chopping the kale, peeling the grapefruit into pith free segments then tossing combined juiced lime with crushed ginger would work nicely.