★★★★★
I have found that a vegan gluten fee diet helps, but what really makes a difference to the kidney involvement is daily consumption of natural probiotics in fermented food. This includes coconut yogurt or kefir (I found out early on that avoiding dairy helped my lupus tremendously), cultured vegetables with live cultures (not to be confused with vinegar preserved veggies) and small amounts of kombucha (tart, not too sweet). If I eat these daily in small amounts the kidney inflammation is non existent. When starting out be gradual and add each slowly to your diet as they are powerful, and can cause a detox reaction. Eat well, eat fresh, avoid sugar and fast foods/drinks.
Good luck!