My mom passed in December from COPD, so for both of my parents, I always thought smoking was part of what caused their kidney problems. Also, my mom had very high BP that was often neglected. So honestly, I’m not completely sure what caused their kidney issues. My dad has one that was dead removed about 15 years ago, but on my ultrasound mine looked fine. Hopefully I’ll know more in a month when I see a nephrologist. I have two appointments set up here in the Chicago area. My goal is to get one at Mayo next summer. I’m a teacher and I’ll be off again. It’s very hard to get appointments, I’m assuming because stage three is still considered “good”. I’m trying to eat more vegan, but I’m having trouble getting enough calories unless I have an English muffin and some peanut butter, which I see is often on the bad food lists. Also, the ranges I’m using for nutrients are guesses from all the various sources. Doc said watch potassium and sodium, but they were normal in my labs. Until I know more I’m a little afraid of protein. Plant based M-F, and I’ve allowed fish on the weekend.