What foods can seniors in assisted living eat to boost their memory?

Alzheimer’s is a genetic disease in my dad’s family. My dad used to eat dark chocolate bars a lot. He was like the internet; he had everything in his mind. I’m not saying he became a genius, but something helped him, and dark chocolate can improve memory based on some evidence. He chose to eat in times of hunger that were not normal. Instead, all of them were an excellent booster for memory, like nuts, broccoli, blueberries, and of course coffee. All of these can help your beloved senior’s brain to function better.