To those worried about people who are elderly, Dr Richard Schulze in his book 25 ways to have the cleanest kidneys in town says point blank that he healed people on dialysis and also people with dead organs including the kidneys (even with very low kidney function/kidney disease (both not on and on dialysis on dialysis) and they recovered using the full incurables program and the full incurables program would of course include his kidney bladder and liver/gallblader cleanses and programs.
I would not do Hulda Clark's cleanse personally but Schulze's liver cleanses as these have a long history starting with Dr Schulze of safely helping cleanse the kidney bladder even in dying and sick and older patients.
Schulze also talks of putting people from age 4 to their 80s and beyond on the full incurables..just take it a little slower and more carefully.
It is great the person who got their parent on a raw food diet as this seems to help everything. Raw vegan diet whole foods helps everything.
I would add green juices and green smoothies to that.
To make them, take any fruit she likes like apples, peaches, pears, berries, melons. papayas, coconuts, etc and add to this one of the following greens.
kale, green leafy tops of radishes, beets, turnips, daikon etc, spinach, Swiss chard, romaine, collard greens, celery, broccoli, bok choy, parsley (no more than 25% of the drink should be parsley), watercress, purslane, any Asian market greens and safe wild greens like dandelion greens, burdock, cleavers, strawberry and daisy leaves (etc), lamb's quarter etc.
Be sure to alternate the kind of green you use every day or two. this is very important according to the women who popularized green smoothies raw foodist Victoria Boutenkgo (rawfamily.com)
For juices use a juicer for smoothies a blender or vitamix. Be sure to drink it within 15-20 minutes lest the enzymes and other vital elements dissipate. do hold hold over in the refrigerator but if you on occasion do, then fill a glass jar to the tip top excluding all air and cap.
Do not take your juices with pulp or food lest instead of going to healing and repair it goes to digestion.
Also be sure to see my 36 steps for the kidney patient for other helpful things.
here is Schulze's 5 day liver cleanse (you do need the herbs, either make them using the formulas given in his incurables manual) go get them at herbdoc.com
also good comparable organic comparable ones based on his formulas are found a little cheaper here
http://healmarketplace.com/ (Schulze's student)
Here is a lot of help from Schulze's teacher, Dr John R Christopher on parasites
Be sure the herbs you use are organic or wildcrafted and the best way to take herbs is in the form of tinctures, then teas and last capsules (not recommended).