There is lots of evidence pointing to the importance of fermented vegetables being critical to good health.
http://articles.mercola.com/fermented-foods.aspx
In one of the many articles about fermented foods, Mercola talks about using probiotic "starters", it may be worth reading up on to see if your kefir grains can be used that way to supercharge your veggies.
Be proud of how resourceful you are.
Thank you blindsquirl! I actually make my own fermentation starter out of berries, grapes, or whatever. Here is my post (with video) about how I do it, I was going to link it in the post but forgot to:
https://steemit.com/fermentation/@raincountry/make-your-own-fermentation-starter