World Alzheimer’s Day 2026 - 21 September 2026

 World Alzheimer’s Day 2026

The Earlier You Know, The More You Can Do

A Dementia Diagnosis Matters

    Every year, 21 September is observed as World Alzheimer’s Day to create awareness about Alzheimer’s disease and other forms of dementia. The 2026 global campaign focuses on an important message:

“The Earlier You Know, The More You Can Do: A Dementia Diagnosis Matters.”

    The campaign highlights why recognising changes in memory, thinking or daily functioning and seeking professional assessment early can make a difference. An early diagnosis can help a person and their family understand what is happening, explore available care and treatment options, plan ahead and access appropriate support. But there is another important question we should ask:

What can we do today to support brain health as we age? Nutrition is one part of the answer.

What is Alzheimer’s disease?

    Alzheimer’s disease is a progressive brain disorder that affects memory, thinking, behaviour and the ability to perform everyday activities. It is the most common cause of dementia.

    Occasionally forgetting a name, misplacing keys or taking a little longer to remember something does not automatically mean that a person has Alzheimer’s disease.

    However, persistent or worsening changes in memory, thinking, communication, behaviour or daily activities should not simply be dismissed as “normal ageing.”

    If you or a family member notices significant changes that continue over time, it is better to speak with a doctor rather than trying to identify the cause at home.

    Early assessment matters because memory and thinking problems can have different causes, and some causes may be treatable.

Why does early diagnosis matter?

    The theme of World Alzheimer’s Day 2026 reminds us that knowing earlier gives us more opportunities to act.

An early diagnosis can help:

* Understand the reason for cognitive changes

* Access appropriate medical care and support

* Discuss lifestyle changes

* Plan future care and family responsibilities

* Make important personal and financial decisions while the person can participate

* Give family members time to understand the condition

* Reduce fear and confusion caused by not knowing what is happening

    A diagnosis is not the end of the journey. It can be the beginning of better planning, support and care.

Can food prevent Alzheimer’s disease?

This is one of the most common questions people ask.

The honest answer is: There is no single food that can prevent Alzheimer’s disease.

    Research suggests that overall dietary patterns and healthy lifestyle habits may influence cognitive health and dementia risk. Mediterranean-style and MIND-style eating patterns have been associated with better cognitive outcomes in several studies, although research is still ongoing and results are not conclusive.

    Therefore, instead of searching for a “memory-boosting food”, we should focus on a healthy eating pattern throughout life.

The good news is that this does not mean we have to eat expensive imported foods. A brain-friendly diet can be built using many foods that are already familiar to South Indian families.

Brain-friendly nutrition: Think local, not complicated

1. Eat more vegetables – especially greens

    Vegetables provide fibre, vitamins, minerals and many plant compounds that support overall health.

Try to include: Murungai keerai,Arai keerai,Siru keerai,Ponnanganni keerai,Agathi keerai,Spinach, Carrot, Beans, Pumpkin, Brinjal, Ladies' finger, Cabbage,  Cauliflower and Tomato

Simple idea: Instead of preparing the same vegetable every day, rotate different vegetables and greens throughout the week. Green leafy vegetables are particularly highlighted in research on MIND-style eating patterns.

2. Choose whole grains and traditional millets

    Our traditional grains can be part of a healthy brain-supportive eating pattern. Include: Ragi, Kambu, Thinai, Varagu, Samai, Kuthiraivali, Red rice, Hand-pounded rice and Whole wheat. The important point is not to completely avoid rice. Rice can be part of a healthy diet. Instead, pay attention to the quantity, variety and overall meal balance.

For example: Rice + sambar + 2 vegetables + keerai + curd is very different from:

A large plate of rice + fried side dish + sugary drink.

Whole grains, vegetables and pulses are recommended sources of carbohydrates in a healthy diet.

3. Make pulses and legumes regular foods

    Our traditional Indian foods already give us many excellent choices. Include: Green gram, Black gram, Bengal gram, Cowpea, Rajma, Chickpeas, Lentils, Toor dal and Horse gram. Traditional dishes such as sundal, kootu, dal, sambar and sprouted pulse preparations can contribute to a healthy eating pattern. Pulses provide protein, fibre and several micronutrients.

4. Include nuts and seeds

    Nuts and seeds can be included in moderate quantities. Good choices include: Almonds, Walnuts, Groundnuts, Flaxseeds, Sesame seeds, Pumpkin seeds and Sunflower seeds. You do not need expensive imported nuts every day.Groundnuts are an affordable traditional option. A small portion can be added to breakfast, snacks or meals. Remember: nuts are nutritious but energy-dense, so portion size matters.

    Include fish if you eat non-vegetarian food. Fish provides protein and, depending on the type, omega-3 fatty acids. Traditional choices such as: Sardines, Indian mackerel, Anchovies and salmon can be included as part of a balanced diet. Prefer steamed, grilled, baked or lightly cooked fish more often than deep-fried fish. Research has associated regular fish consumption with cognitive health, although this does not mean that eating fish guarantees protection from Alzheimer’s disease.

6. Eat fruits – but don't depend on fruit juice

    Fruits provide fibre, vitamins, minerals and plant compounds. Choose locally available fruits such as: Guava, Papaya, Orange, Mosambi, Pomegranate, Apple, Banana, Watermelon and Seasonal fruits. Whole fruit is preferable to fruit juice because whole fruit provides fibre and generally requires more chewing. You do not need to buy expensive “superfruits” to support a healthy diet.

7. Use healthy fats wisely

    Fat is not the enemy. The type and quantity of fat matter. Use moderate amounts of oils such as: Groundnut oil, Sesame oil, Rice bran oil, Ghee, Butter and Other unsaturated vegetable oils Traditional foods such as nuts, seeds and fish can also provide healthier types of fat.

    At the same time, reduce frequent intake of foods high in saturated and trans fats, particularly highly processed and deep-fried foods. WHO recommends choosing unsaturated fats over saturated and industrial trans fats.

8. Reduce excess sugar

    Too much added sugar is not good for overall metabolic health. Limit frequent consumption of: Sweets, Cakes, Biscuits, Sweetened beverages, Packaged fruit drinks, Sugary tea and coffee, Ice cream and Desserts.

    This is particularly important because diabetes and poor blood sugar control are among the health factors linked with increased dementia risk. Managing cardiometabolic conditions such as diabetes, high blood pressure and high cholesterol is an important part of dementia risk reduction.

9. Don't forget blood pressure, cholesterol and blood sugar

    Brain health is not separate from heart health. What is good for the heart is often good for the brain too. Long-term uncontrolled: High blood pressure, Diabetes,High cholesterol and Obesity can contribute to vascular problems that affect brain health.

    Therefore, regular health checks are important, particularly as we grow older. Do not wait for symptoms before checking your health.

10. Hydration matters

Older adults may not always feel thirsty even when they need fluids. Adequate hydration supports normal body function and helps prevent problems associated with dehydration. Water should be the main drink. Depending on individual health needs, other fluids may also contribute. For people with kidney, heart or other medical conditions, fluid requirements should be personalised by their healthcare professional.

What about turmeric, green tea and “memory foods”?

    Turmeric, green tea, berries, leafy vegetables and many other foods have been studied for their possible effects on brain health. But we should be careful with social-media claims.

No individual food has been proven to prevent Alzheimer’s disease.

    Similarly, there is currently no vitamin or dietary supplement recommended specifically for preventing Alzheimer’s disease in people without a diagnosed deficiency. WHO's updated 2026 guidance also does not recommend routine vitamin B, vitamin E, omega-3 or multivitamin supplementation specifically for dementia risk reduction in the absence of a diagnosed deficiency.

    So rather than spending money on “brain booster” supplements, focus first on the basics: Balanced food + physical activity + good sleep + social connection + management of health conditions + regular medical care.

Don't forget the lifestyle part

Nutrition is only one piece of the puzzle. WHO's current dementia risk-reduction guidance emphasizes a broader lifestyle approach, including healthy eating, physical activity, avoiding tobacco, maintaining healthy weight and managing blood pressure, cholesterol and blood sugar. Social and cognitive engagement are also important.

Keep your brain and body active. 

• Walk regularly.
• Learn something new.
• Talk to family and friends.
• Read.
• Play music.
• Do puzzles or meaningful activities.
• Sleep adequately.
• Avoid smoking.
• Manage diabetes, BP and cholesterol.
• Eat a varied, balanced diet.

    These habits are not guarantees against Alzheimer’s disease. But they contribute to healthier ageing and may help reduce the risk of cognitive decline and dementia.

A message for every South Indian family

In many families, we say:  “Avanga vayasu aayiduchu… maradhi irukkum.”

In simple words: “They are getting older, so forgetting is normal.”

But persistent changes should not always be ignored as ageing.

    If an elderly parent repeatedly forgets recent conversations, gets lost in familiar places, struggles with familiar tasks, has noticeable changes in language or behaviour, or has difficulty managing everyday activities, talk to a healthcare professional.

• Don't label the person.
• Don't frighten them.
• Don't diagnose them at home.

Listen. Observe. Support. Seek professional advice.

The 2026 campaign reminds us that the earlier you know, the more you can do. This World Alzheimer’s Day, start with one small change You don't have to completely change your family's food habits overnight.

Start with one step:

• Add one more vegetable.

• Include keerai regularly.

• Replace one sugary drink with water.

• Add pulses to your meals.

• Choose whole fruit instead of juice.

• Include nuts or seeds in a sensible portion.

• Walk every day according to your ability.

• Check your BP, blood sugar and cholesterol.

• Don't ignore persistent changes in memory or thinking.

 Remember There is no magic food for Alzheimer’s. But there is a powerful combination of healthy food, healthy lifestyle, early medical attention and family support. This World Alzheimer’s Day, let us move from “It is just old age” to “Let us understand what is happening.”

The Earlier You Know, The More You Can Do: A Dementia Diagnosis Matters. 

A note from a Dietitian

    Nutrition cannot guarantee prevention of Alzheimer’s disease, and no single food, supplement or diet can replace medical evaluation or treatment. A balanced, culturally appropriate diet can support overall health and help manage important dementia-related risk factors such as diabetes, high blood pressure, cholesterol and obesity. Individual dietary needs should be considered, especially in older adults with medical conditions or swallowing, appetite or weight-loss problems.

    Eat local. Eat varied. Stay active. Keep your mind engaged. And seek help early when something changes.