I have beautiful kefir grain available. Since 70% of your immune system is in your gut, it's a good idea to support it with a broad range of probiotics, vitamins & microorganisms found in Kefir boosting your immune system! This milk based Kefir is generally well tolerated by people with lactose intolerance because Kefir feeds on the lactose in milk. I use Organic 3.25% - 3.8% whole milk for a beautiful creamy Kefir. You can make wonderful smoothies, add it to baking where buttermilk is called for or drink it straight up! Leaving it longer to ferment will make it more tangy - you decide. It is healthy, organic and prolific. $5 - Cash Please :) Thanks!