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The Microbiome Doctor: Doctors Were Wrong! The 3 Foods You Should Eat For Perfect Gut Health!

2026-01-26 People & Blogs
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The Diary Of A CEO
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World-leading gut health expert PROFESSOR TIM SPECTOR reveals brand new research around why dementia, depression, and anxiety may start in the gut, how flossing lowers Alzheimer’s risk, and the TOP foods that stop inflammation! Professor Tim Spector is a medical doctor, Professor of Genetic Epidemiology at King’s College London, and co-founder of ZOE, a science-led nutrition company. He has been recognised as one of the top 1% of most-cited scientists worldwide, and is the author of bestselling books, including 'Ferment’. He explains: ◼️Why ultra-processed foods hijack your brain, mood, and behaviour ◼️The role of oral health and gum bacteria in brain inflammation ◼️Why most brain diseases share the same underlying risk factors ◼️The daily gut habits that improve focus, and cognitive resilience ◼️How poor sleep, stress, and late-night eating trigger brain fog and fatigue 00:00 Intro 02:53 Why My Mum No Longer Recognises Me 04:22 Is Dementia Really Becoming More Common? 05:22 The Hidden Types of Dementia You Might Be at Risk For 07:59 How Your Gut Might Be Controlling Your Brain Health 11:34 What Your Diet Could Be Doing to Your Mood 14:25 Why We Crave Junk—and What It Reveals About Us 15:01 Can Chronic Stress Trigger Dementia? 16:12 Could Vaccines Affect Your Mental Health? 18:03 The Surprising Role of the Immune System in Brain Disease 21:18 Does Parkinson’s Disease Begin in the Gut? 24:32 8 Rules for Building a Healthy Gut—And Why It Matters 26:01 What Coffee Really Does to Your Gut Health 30:40 What Happens When You Eat 30 Plants a Week 34:56 Prebiotics vs Probiotics: Which Does Your Gut Actually Need? 39:33 Why Not Flossing Might Raise Your Dementia Risk 40:45 Why We Struggle With the Science of Existence 46:11 Ads 48:13 Why You Should Be Eating Fermented Foods Every Day 56:14 Are You Eating the Wrong Type of Protein? 57:09 What Really Matters More Than Counting Calories 58:30 The Real Cost of Ultra-Processed Foods 01:01:49 What’s the Best Bread for Gut and Brain Health? 01:02:55 Am I Really Gluten-Free, or Just Guessing? 01:05:16 The Truth About Nuts and Your Brain Health 01:06:39 What Makes a Food a True Superfood? 01:08:28 How Fasting Impacts Your Gut and Mind 01:10:19 Ads 01:12:10 How the Keto Diet Might Heal More Than You Think 01:16:30 Can You Be Keto and Still Have a Healthy Gut? 01:20:42 What It Means If You Have Microplastics in Your Blood 01:22:58 How GLP-1 Drugs Could Improve Your Life 01:25:51 The Powerful Brain Benefits of Sauna Use 01:26:41 How Socialising Could Protect Your Brain 01:27:23 Can Childhood Trauma Predict Disease Later in Life? 01:30:58 How Food Is Quietly Becoming Medicine 01:32:23 What It Takes to Build a Healthy Relationship With Food Follow Tim: Instagram - https://bit.ly/4jXTsPZ X - https://bit.ly/4qCNW88 ZOE YouTube - https://bit.ly/45tuXEt You can download Tim’s “How to eat in 2026” guide, full of practical tips, recipes and the science behind ZOE’s 8 nutrition principles, here: https://zoe.com/2026 You can purchase Tim’s book, ‘The Food For Life Cookbook: As seen on Channel 4's What Not To Eat’, here: https://amzn.to/3Zr1xDg The Diary Of A CEO: ◼️Join DOAC circle here - https://doaccircle.com/ ◼️Buy The Diary Of A CEO book here - https://smarturl.it/DOACbook ◼️The 1% Diary is back - limited time only: https://bit.ly/3YFbJbt ◼️The Diary Of A CEO Conversation Cards (Second Edition): https://g2ul0.app.link/f31dsUttKKb ◼️Get email updates - https://bit.ly/diary-of-a-ceo-yt ◼️Follow Steven - https://g2ul0.app.link/gnGqL4IsKKb Sponsors: LinkedIn Talent Solutions - https://linkedin.com/doac Wispr - Get 14 days of Wispr Flow for free at https://wisprflow.ai/DOAC Ketone - https://ketone.com/STEVEN for 30% off your subscription order Steven is an investor in ZOE.

Top Comments (10)

@mikheilg 2026-01-26

We are confusing a lack of willpower with a chemical hijacking. Everyone thinks that being sick, tired, and overweight is a personal moral failing, but the reality is that we are fighting a biological war against a food industry that hires chemists to hack our survival instincts. We are blaming ourselves for "failing a diet" when we are actually the victims of a business model that needs us to remain inflamed and addicted to show a profit. You aren't fighting a craving; you are fighting a boardroom.

3.6k 272 replies
@JSRJS 2026-01-26

SUMMARY!! Here’s the core message of the transcript: Spector argues that gut health is mostly about feeding a diverse ecosystem of microbes (especially with plant fibers + polyphenols), and that this influences inflammation, metabolism, and even brain-related outcomes via immune signaling and the gut–brain axis. He pushes people away from “macro obsession” and toward food quality + variety, with special love for fermented foods, lots of different plants, and minimally processed whole foods. The “8 rules” he lays out 1. Be mindful about what you eat (pay attention to how foods affect you, don’t outsource thinking to fads). 2. Eat ~30 different plant foods per week (diversity > “one superfood”). 3. Eat fermented foods daily (he frames this as a major lever for gut/immune effects). 4. “Pivot your protein” (shift some protein toward plant sources that come bundled with fiber). 5. “Quality, not calories” (stop treating calorie math as the whole story). 6. Avoid “high-risk processed foods” (especially ultra-processed foods and certain additives). 7. Nuts (e.g., almonds) are a strong default snack (he links this to brain/aging associations). 8. Time-restricted eating / overnight fasting window (he talks about a ~12–14h overnight fast / ~10h eating window idea). Big takeaway from this talk: your gut isn’t a “calorie calculator,” it’s an ecosystem. Feed your microbes and a lot of other stuff (inflammation, metabolism, even mood/brain signals) tends to improve. His practical rules: aim for ~30 different plant foods/week (diversity beats “superfoods”), eat fermented foods daily, shift some protein toward plant sources, focus on food quality over calorie obsession, cut ultra-processed junk, nuts are a great default snack, and keep a consistent overnight fast/eating window (roughly 12–14h not eating). Simple theme: variety + real food + fermented = happier gut.

3.0k 164 replies
@TeeDee79 2026-01-26

After working 20+ yrs in the nursing field, this channel has done more good for my health than any doctor or prescription ever has

1.3k 30 replies
@TheDiaryOfACEO 2026-01-26

Do you like these types of convos? If so please hit the like button on the vid - that’s the best way to vote for more like this ❤ also, would be doing me a big favour if you could subscribe - its free 🙏🏾appreciate you! - SB

895 67 replies
@saiqasajjad4849 2026-01-26

My grandmother is 102 years old, she has such a sharp memory n cogntiv brain that she remembers evrything about her 100 s of grand, greatgrand children. one thing she did n even today does, she eats goat meat , red meat, & high fat diet desi ghee , butter & eggs in abndnce , & she eats organic turmeric too, organic milk before bed. organic chicken cooked in turmeric n desi ghee her fav logevity meal..One thing im unable to understand all my life we ve seen her eating high sugar tea , she wud litetally put up to 6 or 8 tea spoon of sugar into her tea , but no sogn of diabetis..she still speaks of life as she gonna live 100 more years ... no sadness no pessimism nothing.. she laughs wholeheartedly, makes jokes :)

595 52 replies
@Dwayne3007 2026-01-26

Eat fresh as much as you can. Drink water, Fast, floss and stay away from negativity to improve your mental health.

540 23 replies
@danni4896 2026-01-26

Growing up in eastern Europe we ate alot of fermented veggies and drinks. Sauerkraut and lactofetmented vegetables were a staple in every household especially during winter as they contain lots of vitamin C and we did not have access to fresh fruits and vegetables. Also borsch, sourdough bread, homemade cheeses and yogurt , raw milk. Fermented elderbery flower lemonade. We were exposed to many fermented foods and ppl were not sick the way they are today. When we moved to Canada mid 90s, i was shocked to see so many allergies, food intolerances and many of the health issues especially in young ppl.These were things unheard of while growing up. No doubt in my mind that the food we eat plays a major role in our health and wellbeing

300 14 replies
@nicholas_voegt 2026-01-27

For 8 years of my life, I had been in the food production industry, and needed to get out. The problem we face is that this is a industry that causes humanity to lose faith in themselves. I have seen what is fed to chickens to get them from hatchling to full size in 2 weeks, I have seen the additives, we think we are eating organic vegetables from the farm, yet we cannot control what waste is being discarded a few blocks down and transferring to your crops. We get told what we should eat, what's good to eat, yet the major corporations I had worked with had 1 focus, increase production and EBIT, this led to a host of undesirable outcomes in the food being produced, yet approved by the FDA. We can not be hard on ourselves striving to eat the healthiest food because it does not exist for the poor or middle class, it only exists lab environment, isolated and nutrient nurtured which makes it unaffordable for the majority. We try our best to eat right, eat healthy, keep our mind strong, yet we are still seeing the same outcomes. The mass production of food does not know health, does not know nutrition, does not know sustainability. We then watch these types of interviews and instead of feeling inspired to eat healthy, I get more nervous. We should not be battling with ourselves on this, these corporations need to own up. I do understand that there are healthier decisions we can make when it comes to our consumption, but i would not call it healthier, I would call it, less harmful.

264 15 replies
@antoniocilindro850 2026-01-29

It’s funny to think that society has a tendency to take care of some animals, but we don’t recognize all the species that are in our gut that require the same attention. We buy expensive food for our pets, but we give junk food to our microbiome 😂. We should run a campaign: Microbiome is your most important pet 🎉

132 8 replies
@jacquibee5568 2026-03-07

My anxiety came from low B12. I've had numb feet for 10 years and no doctor cared to figure it out. I saw my B12 was under 300 and decided to get injections 3 times a week, then once a week. I have feeling back in my legs, energy and my body knows when I'm full now. It's amazing!

21 1 replies

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