Thank you for your query on Healthcare Magic,
As she is having trouble with maintaining with potassium and phosphorous in the blood due to PKD, you can supplement the daily.
If she is not able to swallow the large pills you can ask your doctor for the prescription of suspension or syrup forms.
diet is useful in celiac disease
, dermatitis herpetiformis
and in patients with wheat allergy
Its role in PKD not known.
Hope I have answered your query.