You’ve probably heard of fermented foods. But what actually makes a food fermented? In simple terms, fermentation is a natural process in which bacteria, yeast, or other microorganisms break down the sugars in food, producing beneficial compounds (like probiotics) in the process. These include foods such as yoghurt, kimchi, kefir, and kombucha.
And surprisingly, fermented foods have been a staple of human diets for thousands of years. Yet, they’ve also been thoroughly studied. So, here’s what the research shows, and which fermented foods are worth adding to your plate.
1. They Support a Healthy Gut
Fermented foods are rich in beneficial bacteria that help maintain a diverse and balanced gut microbiome. And a healthy microbiome does far more than most people realise; yes, it supports smoother digestion and reduces bloating, but it also plays a role in immunity, mood, energy, and even sleep.
2. They Protect Your Brain
Your gut and brain are in constant communication via the gut-brain axis, a two-way signalling system that influences everything from memory to mood.
A scientific review of 45 studies indicated that fermented foods may protect the brain through multiple pathways, including reducing inflammation, increasing antioxidant enzyme activity, and elevating BDNF (a protein that supports the growth and maintenance of brain cells).
Essentially, the fermentation process creates bioactive compounds that don’t exist in raw foods, and these compounds can cross the gut barrier and interact directly with your brain tissue. In other words, what you eat genuinely affects how well your brain works, impacting how you feel now and with increasing age.
3. They Help Reduce Inflammation
Chronic, low-grade inflammation is at the root of many of today’s most common health conditions. However, fermented foods have been shown to help lower inflammatory markers in the body, partly through their effect on the gut microbiome and partly through the bioactive compounds produced during fermentation.
4. They Strengthen Your Immune System
Around 70% of your immune system lives in your gut. This means that healthier gut usually equates to a more resilient immune system. In turn, this may make your body better equipped to fight off illness and allow you to recover more quickly when illness does strike!
5. They Support Your Mood and Stress Response
Your gut and your brain are in constant communication. And the relationship goes both ways. In fact, research suggests that a healthier, more diverse gut microbiome is associated with a more balanced stress response and better overall mood.
At the same time, stress can disrupt your gut, changing its motility and composition. Like many people, it’s likely you’ve noticed changes in your gut or digestion during a particularly exhausting or stressful week. This is the gut-brain connection happening in real time!
6. They Improve Nutrient Absorption
Most people don’t realise that some of the “healthiest” foods, such as legumes, grains, and even vegetables, contain natural compounds called anti-nutrients, such as phytates and tannins, that can actually block your body from absorbing key minerals including iron, zinc, and calcium.
Yet, fermentation helps fix this. The fermentation process partially breaks down these blocking compounds, making the nutrients in your food more bioavailable. This means your body can actually access and use them. Research shows that fermentation also partially pre-digests proteins, improving their digestibility and releasing beneficial amino acids in the process.
As a result, you get significantly more nutritional value from what you eat. And this can spill over into your overall well-being and long-term health.
Which Fermented Foods Should You Try?
Keep things simple, and start with one serving a day of any of these:
- Kefir (a fermented milk drink, rich in probiotics and easy to add to smoothies)
- Sauerkraut (fermented cabbage, great alongside meals)
- Kimchi (spiced fermented vegetables with a probiotic punch)
- Miso (a fermented paste that works well in soups and dressings)
- Kombucha (a fizzy fermented tea, widely available and easy to enjoy on the go)
- Natural yoghurt (one of the most accessible fermented foods)
At the end of the day, what you eat is just one piece of the puzzle. How your body is aligned, how your nervous system functions, and how well your spine supports you all play a role in your overall health and well-being, too.
If you’re curious about how chiropractic care can complement your existing wellness routine, your Finsbury Park chiropractor is here to help. Book your FREE discovery call with our team today. BOOK NOW.ith our team today. BOOK NOW.