Food as medicine - Part 2: The importance of the Gut-Brain connection in Parkinson's
The second instalment of the "Food as Medicine" webinar series, hosted by Beatrice Zatorska and featuring food scientist Beth Statkus alongside Dr Tanya Denne, has unveiled a compelling frontier in Parkinson’s management: the gut. Often referred to as our "second brain," the gut is not merely a digestive organ but a complex neurological command centre linked directly to the brain via a biological highway known as the gut-brain axis.
The Microbiome: A Living Internal Forest
To understand the connection between the gut and Parkinson's, we must first look at the microbiome. This is a vast ecosystem of trillions of microbiota living inside and outside our bodies. Beth Statkus uses the analogy of a lush, diverse forest to describe a healthy gut. When this forest is thriving, it is filled with a variety of beneficial "bugs."
In many people with the condition, however, this ecosystem enters a state called dysbiosis. This is like a desolate, dead forest where diversity has vanished. Research indicates that gut dysbiosis is highly prevalent in Parkinson’s and other neurological conditions. The primary bridge for this relationship is the vagus nerve, a major component of the enteric nervous system that facilitates constant, two-way communication between the gut and the brain.
Magical Molecules and the "Leaky Gut"
When we consume fibre, the beneficial bacteria in our gut produce short-chain fatty acids. These are described as "magical molecules" because they perform several vital functions:
They fuel the cells that line the gut.
They strengthen the integrity of the gut barrier.
They promote anti-inflammatory responses.
They enhance the absorption of essential nutrients.
Without a diverse microbiome, the production of these fatty acids drops, leading to biological degradation. Over time—due to age, stress, or environmental toxins like Paraquat—the tight junctions between the cells of the gut lining begin to pull apart. This results in a "leaky gut", allowing toxins and harmful bacteria to enter the bloodstream. This triggers chronic inflammation which can eventually travel to the brain, activating immune cells like microglia and astrocytes, ultimately contributing to neurodegeneration.
The Power of the Mediterranean and MIND Diets
The good news is that the microbiome is remarkably malleable. Significant changes can be seen in as little as two to five days through lifestyle adjustments. The Mediterranean and MIND diets are highly recommended, as they prioritise whole grains, fruits, vegetables, and healthy fats while limiting red meat and sugar.
Large-scale studies have shown that strictly adhering to a Mediterranean diet can lead to a 25% reduction in the risk of Parkinson’s and can even delay the age of onset by an average of 17.4 years. To simplify high-fibre eating, Beth recommends the "Bee Gees" (BGBGs):
Beans
Greens (Spinach, Kale)
Berries (Raspberries, Blueberries)
Grains (Whole)
Seeds and Nuts
Clinical Insights: Neurofibre and Inflammation
In a pilot clinical trial involving people with Parkinson’s, the introduction of a daily "neurofibre" bar led to remarkable results over four weeks. Participants saw a 75% reduction in constipation and a significant decrease in markers of intestinal inflammation. Most interestingly, non-motor symptoms on the UPDRS scale improved by 87%, and sleep quality improved by 62%.
Dr Tanya Denne added that clinical testing often reveals low levels of butyrate (a specific short-chain fatty acid) in the Parkinsonian gut. She also highlighted the prevalence of H. pylori, a bacterium that is twice as common in people with the condition. H. pylori can lower stomach acid, which directly interferes with how medications are absorbed and processed by the body.
Practical Strategies for Gut Health
The webinar concluded with several practical takeaways for managing gut health and symptoms:
Introduce Fibre "Low and Slow": Gas is a natural byproduct of healthy bacteria eating fibre. To avoid discomfort, start with small amounts and work up to the recommended 25–30 grams per day.
Hydration is Key: Most people are chronically dehydrated. The goal is to drink about half your body weight in ounces of water daily (e.g., a person weighing 160 lbs should aim for 80 oz of water).
Manage Heartburn (GERD): Instead of relying solely on PPIs, look for triggers like coffee or spicy foods. Chewable DGL (licorice root) can be a helpful alternative for soothing the digestive tract.
Boost Motility: For those struggling with slow digestion (gastroparesis), ginger and artichoke hearts act as "pro-kinetics" to help move food through the system.
Diversity Over Supplements: While probiotic supplements can help, it is often more effective to "feed" your existing good bacteria with a wide variety of plant fibres.
By addressing gut health through nutrition and exercise, people with Parkinson's can actively lower inflammation and potentially slow the progression of the condition, keeping the "forest" of their microbiome lush and protective.
Bonus content:
The Fibre Game
By Beatrice Zatorska
I like to think of myself as a bit of a pro when it comes to the Mediterranean diet. I have lived it for years. So, when the challenge came to hit 30 grams of fibre a day, I went into it with the smug confidence of someone who eats a vegetable once in a while. I thought it would be a breeze. I was wrong. I was so, so wrong.
Even with fruit or vegetables at every single meal and snacks consisting of dried fruit, I started crunching the numbers and had a total shock. I was still falling short. It turns out you do not just stumble into 30g of fibre by accident. It requires tactical eating and the sobering realisation that a slice of white toast has barely 1g of fibre. You would essentially need to eat the entire loaf to hit the target, which I strongly suggest you do not do unless you want to feel like a human baguette.
My Battle Plan for the Big 30
After admitting defeat, I developed a few tricks to pack it in without feeling like I was permanently grazing on a pasture.
The Breakfast Boost You have to start strong. If you have a bowl of porridge or Greek yogurt, throw in a cup of berries; that is a massive 8g of fibre right there. I also "cheat" by adding a scoop of my favourite apple fibre powder or psyllium husk. That is an easy 5g off the bat, meaning you are at 13g before 9:00 AM.
The Lunchtime Swap We have been trained to view bread as the primary vehicle for lunch, but I have started swapping it for "crudités." A handful of cherry tomatoes is nice, but carrot sticks and sliced peppers are fibre powerhouses. To really level up, I have learnt how to make red lentil wraps, which are absolutely packed with fibre and serve as a much heartier, healthier alternative to traditional bread.
There is also a specific Parkinson’s hack here: since protein interferes with Levodopa absorption, lunch is the perfect time to go vegetarian. This prevents the "protein collision" while naturally boosting your fibre. Think thick vegetable soups with lentils or a massive salad with chickpeas. You are saving your movement and feeding your gut at the same time.
The Avocado Advantage Did you know that just half an avocado contains about 6 to 7 grams of fibre? It is creamy, delicious, and fits with almost anything. I have started adding it to almost every lunchtime salad to give my numbers a significant nudge.
The Dinner Side Hustle I now make sure every dinner has a dedicated "fibre buddy." Whether it is a side of steamed broccoli, a serving of beans, or even a pear for dessert, every addition counts toward that final goal.
The Golden Rule: Hydrate or Regret
Finally, I have a massive word of warning for anyone joining me on this hunt. Fibre works like a sponge; it absorbs water to bulk up. If you dramatically increase your fibre intake but do not drink enough water, you are not creating a healthy digestive system. Instead, you are essentially manufacturing concrete in your colon. That is the exact opposite of what we want.
If you up the fibre, you absolutely must up the water. It takes a bit of planning, but when you hit that 30g sweet spot, everything changes. You feel lighter, your medication tends to work more consistently, and you can sleep better knowing you have kept your microbiome happy.
Warning: Do not jump straight into the high-fibre game if your body isn't used to it. If you are new to this, start slowly by adding fibre gradually to give your digestive system time to adjust.
Beatrice's Cheat Sheet
Think of this as my quick-look cheat sheet. I learnt these values by heart during my experiment, and while it was hideous to start with, it quickly became a habit. Now, I know off the bat what has what and how to balance each plate. Finding the right balance between fibre and protein is a bit of a strategic game; to keep your movement smooth, you want that high-fibre hit while keeping the protein low during the day to avoid any "protein collision" with your medication.
Fruits: The Fibre Frontrunners
Fruits are generally your safest bet for high fibre with very minimal protein.
🍐 Pear (with skin): 1 medium pear contains 5.1g fibre and only 0.6g protein.
🍎 Apple (with skin): 1 medium apple offers 4.4g fibre and 0.5g protein.
🍓 Raspberries: 1 cup packs a massive 8g fibre and 1.5g protein.
🍌 Banana: 1 medium banana provides 3.1g fibre and 1.3g protein.
🏺 Dried Figs: 1/2 cup provides 7.3g fibre and 2.5g protein.
🌴 Dried Dates (Medjool): 2 fruits provide 3.2g fibre and 0.8g protein.
🥭 Papaya: 1 medium fruit offers 5g fibre and 1.8g protein.
🫐 Guava: 1 cup contains 9g fibre and 4.2g protein.
🫐 Blackberries: 1 cup packs 7.6g fibre and 2g protein.
🥝 Kiwi Fruit: 1 medium kiwi offers 3g fibre and 1g protein.
🫐 Prunes (Dried Plums): 1/2 cup offers 6.2g fibre and 1.9g protein.
🥭 Mango: 1 medium mango provides 5.4g fibre and 2.8g protein.
🍊 Orange: 1 medium orange provides 3.1g fibre and 1.2g protein.
🍑 Dried Apricots: 1/2 cup provides 4.7g fibre and 2.2g protein.
🍍 Pineapple: 1 cup of chunks offers 2.3g fibre and 0.9g protein.
🍒 Cherries: 1 cup (pitted) contains 2.5g fibre and 1.5g protein.
🫐 Elderberries: 1 cup contains 10.2g fibre and 1g protein.
Vegetables: The Crunchy Workhorses
Vegetables are the foundation of your daytime "stability" meals, offering significant bulk and essential nutrients while keeping protein levels manageable.
🥑 Avocado: Half an avocado is a superstar with 6.7g fibre and roughly 1.5g protein.
🌳 Artichoke: 1 medium artichoke (boiled) gives you 7g fibre and 3.5g protein.
🥦 Broccoli: 1 cup of chopped, steamed broccoli provides 5g fibre and 3.7g protein.
🥕 Carrots: 1 cup of raw, chopped carrots has 3.6g fibre and 0.9g protein.
🥬 Brussels Sprouts: 1 cup (boiled) contains 4g fibre and 4g protein.
🥔 Sweet Potato (with skin): 1 medium sweet potato (baked) provides 3.8g fibre and 2.3g protein.
🥬 Kale: 1 cup (cooked) offers 4.7g fibre and 3.5g protein.
🫛 Green Beans: 1 cup (steamed) provides 4g fibre and 2g protein.
🍆 Aubergine (Eggplant): 1 cup (cooked) contains 2.5g fibre and 0.8g protein.
🍄 Mushrooms (Shiitake): 1 cup (cooked) provides 3g fibre and 2.3g protein.
🥗 Parsnips: 1 medium parsnip (boiled) provides 5.8g fibre and 1.6g protein.
🥬 Spinach: 1 cup (cooked) offers 4.3g fibre and 5.3g protein (keep an eye on the protein here).
🍅 Sun-dried Tomatoes: 1/2 cup provides 3.3g fibre and 3.8g protein.
🎃 Pumpkin/Squash: 1 cup (cooked) contains 3g fibre and 1.2g protein.
Seeds and Pantry Boosters
These are my absolute favourite "secret weapons." They are the easiest way to bridge the gap and hit that 30g goal without feeling like you are constantly eating. You can sprinkle them over yogurt, stir them into soups, or mix them into a glass of water to get a massive fibre hit with almost zero effort.
🍎 Apple Fibre Powder: 1 scoop (my favourite!) provides about 5g fibre and 0g protein.
🧉 Chia Seeds: 2 tablespoons (about 28g) provide a huge 10g fibre and 4.7g protein.
🥄 Psyllium Husk: 1 tablespoon provides about 5g fibre and 0g protein.
🥨 Flaxseeds (Ground): 2 tablespoons give you 4g fibre and 2.6g protein. 🌾
🌻 Sunflower Seeds: 1/4 cup provides 3g fibre and 6g protein (save these for the afternoon/evening).
🥥 Desiccated Coconut: 2 tablespoons provide 2g fibre and 0.5g protein.
🐚 Hemp Seeds: 3 tablespoons provide 1.2g fibre and 9.5g protein (a brilliant evening protein booster!).
🥣 Prebiotic Fibre Blend: 1 scoop typically provides 5g fibre and 0g protein.
Grains and Legumes (The Protein Watchlist)
While these are fibre champions, they do carry more protein, so keep an eye on your portions during the day.
🌯 Red Lentil Wrap: One wrap (depending on size) can offer roughly 4–5g fibre and 6–8g protein.
🥣 Oats/Porridge: 1 cup (cooked) provides 4g fibre and 6g protein.
🫘 Chickpeas (hummus): 1/2 cup (canned/rinsed) contains 6g fibre and 7g protein.
🍿 Popcorn (Air-popped): 3 cups provide 3.5g fibre and 3g protein.
🫛 Green Peas: 1/2 cup (cooked) provides 4.5g fibre and 4.3g protein.
🍲 Kidney Beans: 1/2 cup (canned/rinsed) offers 6.5g fibre and 7g protein.
🥣 Pinto Beans: 1/2 cup (canned/rinsed) provides 7.5g fibre and 7.7g protein.
🥗 Broad Beans (Fava Beans): 1/2 cup (cooked) contains 4.5g fibre and 6.5g protein.
🌾 Pearled Barley: 1/2 cup (cooked) provides 3g fibre and 1.8g protein (a great lower-protein grain option).
🥗 Bulgur Wheat: 1/2 cup (cooked) offers 4g fibre and 2.8g protein.
🫘 Black Beans: 1/2 cup (canned/rinsed) packs 7.5g fibre and 7.6g protein. They are incredibly versatile for stews or salads.
🫛 Edamame (Shelled): 1/2 cup (cooked) is a superstar with 4g fibre and a whopping 9g protein. It is one of the best ways to get high-quality plant protein.
🥗 Quinoa: 1 cup (cooked) provides 5g fibre and 8g protein. Since it contains all nine essential amino acids, it is a "complete" protein source.
🪵 Tempeh: 100g (cooked) provides 9g fibre and a massive 19g protein. Because it is fermented, it also brings extra benefits for gut health.
By shifting the bulk of your protein to dinner, you ensure your body gets the building blocks it needs while you sleep, without sacrificing your "on" time during the day. Just remember that even at night, fibre is still your best friend for a comfortable morning!
The Fibre Balls Reciepie ☄️
When you have just finished a workout and you are essentially a "pool of sweat," or you feel an "off" period lurking around the corner, you need a snack that works as hard as you do. These Fibre Balls are my secret weapon, they are chewy, sweet, and designed to give you a massive boost without the "protein collision" that messes with your medication.
Keep a batch of these in the fridge, and you will never be caught off guard by a mid-afternoon energy slump again.
This recipe is brilliant because there is no cooking involved, and it focuses entirely on motility-boosting fruit and pure fibre.
What you will need:
🏺1 cup Dried Figs or Medjool Dates (or a mix of both! Figs provide a lovely texture).
🍎3 tablespoons Apple Fibre Powder (the ultimate "zero-protein" boost).
🥥 1 tablespoon Coconut Oil (melted, to keep everything smooth).
💧A splash of water (only if the mixture looks too dry). Optional: A pinch of cinnamon for flavor or pure cocoa or a roll in desiccated coconut. 🥥
The 5-Minute Method:
The Blitz: Throw your figs or dates into a food processor and pulse until they form a thick, sticky paste.
The Boost: Add your apple fibre powder and coconut oil. Pulse again until it is all beautifully combined. If the mixture is too crumbly, add a tiny splash of water until it sticks.
The Roll: Scoop out a tablespoon of the mixture and roll it between your palms into a ball about the size of a walnut.
The Chill: Pop them on a plate and slide them into the fridge. They will firm up in about 30 minutes and stay fresh for a week.