My mom is 84 and my dad is 85. My mom has congestive heart failure (has 10% heart capacity left) but won't stay on her strict diet. My dad continues to feed her all of the wrong foods. When I tried to remind them about the special diet mom needs, my dad told me I have an attitude. Mom is quickly showing signs of dementia. She tells me that she plays games lifting houses to find prizes. She thinks she is still on an Alaskan cruise and will visit me when she returns home. My dad doesn't like me because I am strong willed and he won't take or listen to my advice. I'm afraid to suggest help because they don't want any. I have tried to bring over proper foods but they get insulted. They laugh at me for wanting to help them and threaten to give all of their money to my sister when I help. They are so in need of help and proper diet but think they have another 50 years to live. I feel that my dad is helping my mom deteriorate by ignoring her dementia and feeding her fatty and salty foods. What can I do or say to two parents in bad health but think they're 40 years old?