When it comes to maintaining good health, thereโs nothing more important than a healthy gut. In fact, experts now believe the gut is so important to our overall wellbeing theyโre referring to it โจas our โsecond brainโ.
With the latest research showing that our gut influences everything from our weight to our mood, health experts agree that looking after our second brain is the most important action we can take to keep our health on track.
The key to unlocking good โจgut health, however, is in understanding our microbiome โ the more than 100 trillion bacteria that live inside our gut. โTogether they add up to roughly the same number of cells as the rest of your body combined,โ says Dr Michael Mosley, author of book The Clever Guts Diet.
โWhile they influence you, you can also change them. What you eat and the way you live will โจhave a huge impact on the sort โจof creatures that thrive in your internal rainforest.โ
Put simply, when these tiny organisms (both good and bad) are in balance, we thrive, but when theyโre out of whack, so is our health.
Here, our experts break down the many ways your gut affects your health and how you can keep it in tip-top condition.
Your immunity
Feel like you catch every cold thatโs going around? Ditch the tablets and take a look at whatโs going on in your gut. โBetween 70 and 80 per cent of your immune system resides in your gut, and an unbalanced mix of gut bacteria can trigger chaos,โ says nutritionist and author Lee Holmes, creator of superchargedfood.com.
The sticky, mucousy lining of your intestinal tract is incredibly sensitive and any imbalance in your gut flora can leave you exposed to viruses and less able to fight them off.
FIX ITโฆ To boost your immunity, you need to repair your gut. Reset the imbalance of good and bad bacteria by taking a probiotic regularly, especially if youโre on antibiotics, as these destroy both the bad and good flora. โจ
You can also eat fermented vegies like kimchi, โจor drizzle apple cider vinegar over your salad โ both naturally contain beneficial probiotics and digestive enzymes.
Your mood
If you regularly have those days when youโre on the brink of โจtears for no reason, the cause could be your tummy.
One good reason scientists now refer to it as our second brain is because more than 90 per cent of our serotonin (aka the feel-good hormone) is produced there. So those butterflies in your tummy, that dodgy stomach before a job interview and those cravings for comfort foods when youโre feeling low all stem from your gut.
FIX ITโฆ โYour mental wellbeing depends on the health of your microbiome,โ says nutritionist Steph Lowe of The Natural Nutritionist. โจโThe introduction of probiotics has been โจshown to lower the stress hormone cortisol, which in turn reduces depressive and anxious behaviours.โ
Itโs also vital to include loads of healthy fats โ such as eggs, nuts, seeds and salmon โ in your diet to support serotonin production. โHealthy habits like getting enough sleep and regularly exercising are also key,โ adds Lee.
Your skin
Red, rashy or irritated skin could be sign of poor gut health. โWhen the gut is unable to heal itself after exposure to negative substances like processed foods or environmental toxins, the intestinal walls โ which are usually like tight junctions โ become larger,โ explains Lee.
This is known as โleaky gutโ, which effectively allows nasties to pass through into the bloodstream, leading to inflammation which can cause your skin to flare up.
FIX ITโฆ Eating a diet high in wholefoods is a good start. โRemove trigger foods,โ suggests Steph. โQuit gluten, cut out refined sugars and refined seed oils, and go trans-fat free.โ
Sipping on celeb-fave bone broth is also a great way to โจrepair your gut. โItโs packed full of calcium and magnesium, as well as containing gelatin and collagen to heal and boost cells,โ explains Steph.
Your energy
Feeling sluggish after wolfing down a big bowl of food is simply your bodyโs way of saying itโs struggling to break it down. โWhen the gutโs in balance, itโs able to help you break down the food you eat and turn it into energy,โ says Lee. โIt also defends you from energy-sapping bacteria and viruses that promote illness and slow you down.โ
FIX ITโฆ Maintaining a healthy balance of bacteria in the gut isnโt just down to good nutrition โ the stresses of modern life can play a role too. โWeโre stressed, busy and chronically tired,โ says Steph. โWeโre constantly exposed to environmental toxins and our gut health sometimes just canโt compete.โ
Beat it โจby incorporating relaxation practises such as yoga โจand meditation โจโ which will โจhelp support the production of good bacteria โ into your daily routine.

Yoga is as good for destressing as it is for your gut.
Your 2-day gut transformation diet
Heal your tummy in 48 hours with Lee Holmesโ gut-boosting meal plan
Day 1
Before breakfast โ Leeโs morning elixir:
Mix together apple cider vinegar, lemon juice, ginger and Leeโs Heal Your Gut Diatomaceous Earth powder (from superchargedfood.com)
Breakfast โ a smoothie:
Blend berries, almond or coconut milk, greens, lime and almond butter.
Lunch Green โ bean soup:
Roast beans then pop in a saucepan with stock, coconut milk, cumin, a squeeze of lemon and apple cider vinegar. Blend and serve.
Dinner โ sardine and avocado mash:
โจIn a bowl, mash sardines, avocado, lemon juice and a crushed garlic clove with a fork until well combined. Serve with fresh lemon cheeks.
Day 2
Breakfast โ supercharged green smoothie:
Blend leafy greens, frozen berries and cinnamon with nut milk.
Lunch โ asparagus soup:
Blend asparagus with ginger, turmeric and stock.
Dinner โ baked salmon with broccoli and sauerkraut
Dessert โ cheatโs berry sorbet:
Blend frozen berries, coconut water or almond โจmilk, spinach and almond butter.