Some stuff is just hard to get over here. Like biscuit mix or enchilada sauce. And other stuff is insanely expensive in Korea–like multivitamins. Add to this the logistical (and potentially financial) nightmare of having stuff shipped from your home country, and your food situation can start looking pretty bleak, especially if you live in a small town that doesn’t have a lot of retail options.
If you’re not already using it, let me recommend iHerb. This website has hands-down the best prices on vitamins if you’re an expat living in Korea. They also have a wide array of health and beauty products and food items that can be tough to find in Korea. We order stuff like quinoa, wheat bran, enchilada sauce (by Frontera–it’s amazing), and vitamins from them. Shipping costs about $4.00 to anywhere in Korea, and delivery is fast. If you’re stateside, the prices are still great on a lot of items and shipping on stuff over $20 is free.