Hi Paul, Sorry to hear that, best way is to intermittent fasting of 18hrs at least 3 times a week, and add [moonstone]( https://moonstonenutrition.com/?sca_ref=3068806.lJwZCfkjbI) capsules to clear out the kidneys and allow duct to stay open, in addition, would add [nitrate](https://www.berkeleylife.com/register/?practitioner_code=MD2021) to increase proper blood flow. There is a company that deals with eGFR from japan, but have not tested the product, feel free to see if that works in stopping the progression as well. I am not very familiar with this company nor I do support them, as could not get much info from the creators but check it out and let me know,if they response with positive info.