Eating Fibre Isn't Just Good For Your Gut, It May Boost Your Brain Too: Study

For years, fibre has been the quiet hero of a healthy diet, mostly associated with digestion, weight management, and heart health. But now, emerging research suggests there's more to this humble nutrient than meets the eye. Your daily bowl of oats or plate of dal may not just be helping your gut, it could also be supporting your brain. Yes, you read that right. Fibre and brain health are more connected than you might think. As per a study published in the journal Nutritional Neuroscience, over 3,700 adults found that there was a lower risk of dementia among individuals who had the highest fibre intake. Those who ate the least showed an increased risk. Similarly, another study among adults over 60 for instance, found that those who had diets higher in dietary fibre showed increased cognitive function. To understand how fibre affects the brain, you need to know about the gut-brain axis, a two-way communication system between your digestive system and your brain.

The Gut-Brain Connection: What's The Link?

Inside your gut live trillions of bacteria, collectively known as the gut microbiome. These microbes play a crucial role in digestion, immunity, and now, increasingly, mental and cognitive health. When you eat fibre-rich foods, these bacteria ferment the fibre and produce compounds called short-chain fatty acids (SCFAs). These compounds can reduce inflammation, support brain function and influence mood and cognition. In simple terms, what you feed your gut can directly affect how your brain performs.

Also read: "Fibre Is Your Gut's Primary Fuel," Says Doctor; Tips To Increase Fibre Intake

What The Study Found

Evidence suggests a correlation between butyrate production and improved psychological outcomes, including mitigated depressive symptoms, enhanced sleep quality, and superior cognitive performance. Specifically, the presence of butyrate-producing bacteria is associated with higher levels of well-being and a lower incidence of mental health disorders. Recent studies have highlighted that higher fibre intake is linked with better cognitive function, especially as we age. Researchers observed that individuals who consumed more dietary fibre showed:

1. Better memory retention
2. Improved focus and attention
3. Lower risk of cognitive decline

Some findings also suggest fibre may help reduce the risk of neurodegenerative conditions like Alzheimer's Disease, although more research is still needed to confirm this link.

Why Fibre Is So Powerful For The Brain

1. It Reduces Inflammation

Chronic inflammation is a key factor in many brain-related conditions. Fibre helps lower inflammation by promoting healthy gut bacteria.

2. It Supports Neurotransmitters

Gut bacteria influence the production of neurotransmitters like serotonin, often called the "feel-good" chemical.

3. It Helps Stabilise Blood Sugar

Sudden spikes and crashes in blood sugar can affect focus and energy. Fibre slows down digestion, helping maintain stable glucose levels, which is essential for brain performance.

How Much Fibre Do You Really Need?

For people aged 10 and above The World Health Organisation recommends consuming at least 400 grams of fruits and vegetables daily. For younger children, the recommended amounts are lower: about 250 grams per day for ages 2-5, and 350 grams per day for ages 6-9. However, many people fall short of this target, especially with diets high in processed foods. The good news is, you don't need fancy ingredients to boost your fibre intake. Many everyday Indian foods are naturally rich in fibre.

Also read: Struggling To Eat Enough Fibre? Doctor Shares Simple Guide To Reach 30g A Day

Increase Fibre Slowly

If your current diet is low in fibre, don't go from zero to high overnight. Suddenly increasing fibre intake can cause:

• Bloating
• Gas
• Digestive discomfort

Instead:

• Add fibre gradually
• Drink plenty of water
• Balance your meals

Beyond The Brain: Extra Benefits Of Fibre

While brain health is an exciting new area, fibre continues to deliver multiple benefits:

• Supports digestion and prevents constipation
• Helps manage weight by keeping you full longer
• Lowers cholesterol levels
• Reduces risk of Type 2 Diabetes

Fibre has long been known as a gut-friendly nutrient, but its role in brain health is opening up a whole new perspective on how we eat. By nourishing your gut microbiome, fibre may help improve memory, focus, and overall cognitive function. While it's not a magic solution, it's a simple, accessible step towards better health. So the next time you plan your meals, remember: adding more fibre isn't just about digestion. It's about feeding your brain too.

Disclaimer: This content including advice provides generic information only. It is in no way a substitute for a qualified medical opinion. Always consult a specialist or your own doctor for more information. NDTV does not claim responsibility for this information.