Living Foods Market Café & Juice Bar
2829 Ala Kalanikaumaka, Poipu
While you'll certainly find larger grocery stores in Kauai, you won't find nearly the same sort of health-centric offering, from organic and local produce, to bio-dynamic wines. There's also a prepared food counter where you can pick up fresh juice, sandwiches, smoothies, and salads, including pretty excellent egg and cheese sandwiches and gluten-free crepes.