08/07/2026
💧 Dementia and Dehydration – A Hidden Cause of Increased Confusion
One of the most common but often overlooked problems for people living with dementia is dehydration.
Many people with dementia may:
💙 Forget to drink.
💙 Not recognise they’re thirsty.
💙 Find it difficult to hold or use a cup.
💙 Have swallowing difficulties.
💙 Simply lose interest in eating and drinking.
Even mild dehydration can make dementia symptoms much worse, leading to increased confusion, agitation, tiredness, and withdrawal.
⚠️ Watch out for these early signs:
• Increased confusion or agitation.
• Dry mouth and cracked lips.
• Dark urine or not passing urine very often.
• Headaches, dizziness or fatigue.
• Constipation.
• Dry skin.
🚨 Seek urgent medical help if you notice:
• Sudden severe confusion (delirium).
• Very little or no urine.
• Rapid breathing or heartbeat.
• Severe dizziness.
• Reduced consciousness.
💙 Simple ways to encourage drinking
✔ Offer small drinks regularly rather than large glasses.
✔ Sit and have a drink together.
✔ Keep drinks within easy reach and in sight.
✔ Try a favourite mug or a brightly coloured cup.
✔ Ask family, friends and carers to offer drinks throughout the day.
✔ If drinking suddenly becomes difficult, consider whether pain, illness, mouth problems or swallowing difficulties could be the cause.
🥤 It doesn’t have to be just water
Hydration can come from many different drinks and foods, including:
☕ Tea or coffee
🥛 Milk
🧃 Fruit juice or squash
🍫 Hot chocolate
🍲 Soup
🍉 Watermelon
🥒 Cucumber
🍐 Pears
🍦 Ice lollies
🥣 Yoghurt
🍮 Jelly
Some people with dementia even develop a preference for sweeter or stronger flavours, so it’s worth trying different options.
❤️ If they refuse food or drink…
Never force them.
Stay calm, try again later, and if the refusal continues or they seem to struggle with swallowing, seek advice from their GP. They may benefit from an assessment by a speech and language therapist.
🌿 Towards the end of life
As dementia reaches its later stages, it’s normal for people to eat and drink less. At this point, the focus changes from encouraging fluids to providing comfort through small sips, moistening the mouth, and keeping the lips comfortable.
💙 Remember: Dehydration is common in people with dementia, but it can often be prevented. Spotting the early signs and gently encouraging regular drinks can make a real difference to comfort, wellbeing, and to reduce confusion.
Please share—this simple information could help someone care for a loved one living with dementia.
