All shops from "Healthy food" category with cash back in Japan:
Grocery Stores & Healthy Food Cash Back
If you eat healthily, you won’t have any health problems. It’s more profitable to order healthy food and supplements on the Internet! You can get a discount on the items you like thanks to the large cash back service Megabonus. You can buy ayurvedic, vegetarian and low-carb food and get back a part of money you spent! Megabonus works quickly and with no fees. The funds are transferred to online wallets or to Visa or MasterCard cards.