A dietary plan...please help!?

I need help putting together a dietary plan for my 72 year old mother who has fatigue and brain fog. She also has a history of stroke and elevated LDL and triglycerides. The doctors aren't really helping me and the nearest dietary consultant is over 200 hundred miles away, and I need some idea because of Thanksgiving coming up. Please help! and if you find anything from a website please list the website so I can read through it as well.