Alzheimer's patients may forget to eat and drink or have trouble preparing their own food. Leaving healthy, filling snacks in the fridge or preparing calorie-rich smoothies can help to ensure they're getting enough nutrients. Offer lots of water or juice during the day, but limit evening drinks and caffeinated drinks as these will prompt the need for the bathroom throughout the night. Try to prepare meals that are easy to chew and digest. A study found that loneliness and social isolation may be linked to Alzheimer's disease. Find out more.