When I started putting things away in case SHTF I bought Epsom salt. Why? Because my grandma always had Epsom Salt. Grandma grew up in the depression and was what we would consider a prepper but to her it was just the way it is. Epsom Salt has been around for years but I never realized how many benefits it has. Not only for your health but also for your garden. Epsom salt is magnesium sulfate. More and more I am reading articles and finding that lacking magnesium can take a toll on your health. Health- Most often I read of Epsom Salt being used for a soak, either in a bath or just feet or hands Here are two other sites that list on why you should stock Epsom Salt. 21 Healthy Uses for Epsom Salt 20 Epsom Salt Uses - Why You Need It In Your Home Please note some say you can ingest Epsom Salt for a laxative. If you do please make sure you research and it wouldn't hurt to consult your Doc especially if you have another condition. For the Garden: I added Epson Salt into my planter boxes this Spring. And will be getting more to use throughout the growing season. I copied a few gardening benefits for using Epsom Salt plus there are more gardening uses if you follow the link. PS- Epsom Salt can also be used for your horse's health.