The diet I developed is not full-on keto. However, sugar and anything high carb went out the window. Noodles, pasta, potato, rice, carrots, bananas, mangos. No alcohol. Low carb vegetables such as cabbage, broccoli, cauliflower and green beans stayed in. Once a week, I allowed myself a Magnum ice cream.
It's common sense a lower body weight places less stress on the heart and other organs.
eGFr is a measure of kidney function. About 50% of elderly people die of kidney failure.
After the diet, my eGFr reading improved by 20 points.