Did you know your digestive system could be your secret weapon for staying fit and independent as you age? We all know we should be eating more fibre. It’s one of those things that comes up time and time again. Good for digestion, heart health, and keeping everything ticking over nicely. But here’s something you might not have heard before: fibre could actually help you maintain your muscle strength and mass as you get older.

Yes, you read that right. A study published in the Journal of Cachexia, Sarcopenia and Muscle (Frampton et al., 2021) made some fascinating connections between higher fibre intake and better muscle health, particularly in adults over the age of 40.

🧠 The Science Bit (but keep reading – it’s good stuff!)

Researchers looked at dietary habits and muscle health in a large group of adults and found that those who ate more fibre tended to have greater skeletal muscle mass and handgrip strength, which are both key indicators of overall muscle health. This is important because, as we age, we naturally lose muscle mass (a condition known as sarcopenia), which can lead to frailty, falls, and a loss of independence.

But here’s the twist: it’s not just about protein and exercise (though those are still absolutely essential). Fibre, the humble hero found in fruits, veg, whole grains, legumes, nuts and seeds, seems to play a surprisingly big role.

🌱 So, how does fibre help your muscles?

Fibre feeds your gut microbiome, that bustling community of micro-organisms living in your digestive system. A healthier gut can reduce inflammation (which accelerates muscle breakdown with age) and improve how your body processes nutrients, both of which are crucial for maintaining muscle. Fibre also promotes a feeling of fullness, which in turn helps maintain a leaner body, thereby indirectly giving you a healthier, and more muscular, body composition.

What’s more, fibre helps regulate blood sugar levels (slows carbohydrate absorption,  reduces insulin spikes amd improves insulin sensitivity) and supports a healthy weight — all important factors in preserving strength and mobility.

💡 What does this mean for you?

If you’re over 40 (or even if you’re not), now’s the time to start thinking about fibre as more than just “roughage”. It’s a tool for healthy ageing. And the good news? You don’t need supplements or superfoods – just real, everyday food.

Here are some easy ways to up your fibre game:

• Swap white bread and pasta for wholegrain versions

• Add a handful of beans or lentils to soups and stews

• Snack on nuts, seeds or fruit instead of processed snacks

• Include vegetables with every meal (yes, maybe even breakfast too!)

🥗 Aim for 30g of fibre a day

That’s the recommended daily amount for adults in the UK, yet most of us only manage around 18g. A small shift in your diet can make a big difference; not just for your digestion, but for your muscles, strength and future independence.

In a nutshell… (sorry obvious dad joke!)

More fibre = happier gut = stronger muscles

So next time you’re planning a meal or thinking about having a snack, make sure you get some fibre in there. Your future self will thank you for it. 😃  And on that note, it seems right to finish with the quote at the top of this newsletter: “Eating healthy food fills your body with energy and nutrients. Imagine your cells smiling back at you and saying: ‘Thank you!’”