Provisions Natural Foods Market & Organic Café, which pioneered healthy eating in the Hamptons, opened a second location in Water Mill. The Sag Harbor institution supplies a similar array of organic produce, protein and snacks as well as vitamins, gluten-free options and raw foods here. The onsite café and juice bar launch soon. 760 Montauk Highway, Water Mill; 631.500.9368; provisionsnaturalfoods.com