The Diary of a CEO

The Sugar Doctor's WARNING: The "Healthy" Foods Quietly Destroying Your Body! - Dr David Unwin

Insulin Expert Dr. David Unwin has put 157 patients into drug-free Type 2 diabetes remission using diet alone. He reveals the hidden teaspoon of sugar in your everyday food, the link between sugar and cancer, and why the average person will spend 23 years of their life in poor health. Dr. David Unwin is an NHS GP with over 40 years in general practice, known for his expertise in reversing Type 2 diabetes through dietary changes. He was named NHS Innovator of the Year in 2016 and is the co-author of the most-read paper in BMJ Open, on reversing Type 2 diabetes through a low-carbohydrate diet. He explains: ◼ The "teaspoon of sugar" test that exposes the hidden glucose in your food ◼ Why your liver silently fills with fat for years before anything shows up ◼ Why you can't stop eating certain foods and what food addiction really is ◼ How sugar feeds cancer cells faster and the diet that slows them ◼How Ozempic quiets food cravings and why it's only part of the answer 00:00 Intro 02:20 Why Your Future Health Depends On This One Question 02:44 What It Really Takes To Create The Future You Want 06:50 What Actually Happens Inside Your Body With Diabetes 14:36 The Hidden Truth About What’s Really In Your Food 15:56 The Moment That Completely Changed How He Saw Medicine 17:09 The Real Reason Doctors Are Incentivized The Wrong Way 22:00 How Food Becomes Medicine Or Makes You Sicker 28:59 What Happens When You Truly Transform Your Health 30:04 The Everyday Habits Quietly Destroying Your Health 33:05 Why Most People’s Idea Of Healthy Is Completely Wrong 35:20 Is Dried Fruit Healthy Or A Sugar Trap In Disguise 38:26 These Healthy Foods Have More Sugar Than You Think 45:25 Is Orange Juice Actually Good For You 46:56 The Truth About White Milk And Dark Chocolate 49:28 Why Smoothies Aren’t As Healthy As You Think 52:11 How To Tell If Your Food Is Actually Healthy 55:24 How Your Body Secretly Turns Carbs Into Sugar 57:18 Is Bread Ruining Your Health 59:22 Ads 01:01:25 What Nutrition Labels Aren’t Telling You 01:05:47 Keto Diet Solution Or Hidden Risk 01:10:25 How To Set Health Goals That Actually Work 01:20:35 How To Help Loved Ones Change Before It’s Too Late 01:31:21 The 4 Step Plan To Break Addiction For Good 01:34:50 Why Addiction Leads To Deception 01:35:50 Book Giveaway 01:37:27 Ads 01:39:42 The Link Between Diet And Cancer What This Means 01:45:09 Why Our Healthspan Is Quietly Declining 01:48:21 The Simple String Test That Reveals Your Metabolic Health 01:50:25 Are Supplements Helping Or Hurting You 01:53:04 The Magnesium Story That Will Change How You Think 02:02:57 Guest’s Last Question 02:09:56 A Final Story You Won’t Forget Enter here for the chance to win one of 1000 copies of Dr. Jen Unwin’s Book, “Fork in the Road”: https://link.thediaryofaceo.com/6OxWpCa Enjoyed the episode? Share this link and earn points for every referral - redeem them for exclusive prizes: https://doac-perks.com You can follow David, here: X - https://link.thediaryofaceo.com/5ZMguOY Support his charity, Public Health Collaboration: https://link.thediaryofaceo.com/APtcZJH Independent Research: https://stevenbartlett.com/wp-content/uploads/2026/05/DOAC-Dr-David-Unwin-Independent-Research-Further-Reading.pdf 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: https://linkly.link/2io2A ◼ Get email updates - https://bit.ly/diary-of-a-ceo-yt ◼ Follow Steven - https://g2ul0.app.link/gnGqL4IsKKb Sponsors: Ketone - https://ketone.com/STEVEN for 30% off your subscription order Stan - Visit https://coach.stan.store/?ref=stevenbartlett&utm_source=youtube&utm_medium=podcast&utm_campaign=episode6 Cometeer - https://cometeer.com/steven for $30 off your first order Conversation Cards: https://linkly.link/2io2A

DUDr. David UnwinguestSBSteven Bartletthost

May 18, 2026·2h 11m·Watch on YouTube ↗

📖 CHAPTERS

1. 1

   Metabolic health futures: the question that shapes your life expectancy

   Dr. David Unwin frames health as a set of possible “futures” shaped by daily choices, arguing we’re in a global metabolic health crisis—especially among young people. He highlights how normalized weight gain (e.g., “dad bod”) masks serious risk and how many people have undiagnosed Type 2 diabetes.

2. 2

   What diabetes does inside the body: insulin, fatty liver, and the ‘silent scream’

   Unwin explains insulin’s role in moving glucose out of the blood and why excess carbohydrate becomes stored fat—particularly in the liver. He outlines the progression from fatty liver to insulin resistance to pancreatic failure, and why intervening earlier dramatically improves the odds of remission.

3. 3

   The turning point: a patient challenge, guideline incentives, and a low-carb rethink

   A patient confronts Unwin after normalizing her blood sugar without metformin by removing bread and cereal—forcing him to question his training. He also describes how doctors can be financially and professionally nudged toward medication-based targets rather than lifestyle-first care.

4. 4

   Testing low carb in the real world: early group clinics and surprising improvements

   Unwin and his wife Jen launch an after-hours low-carb group with volunteers, tracking labs and outcomes carefully. The early results—improved liver markers, weight loss, blood pressure drops, and better HbA1c—reshape his view of lifestyle medicine and hunger regulation.

5. 5

   Everyday habits that quietly drive disease: snacking culture and protein displacement

   The conversation shifts to modern eating patterns: cereal breakfasts, juice, snacks, sandwiches, and processed dinners—creating constant glucose/insulin cycling. Unwin argues the issue isn’t only “sweets” but frequent refined starch exposure and low protein intake.

6. 6

   Sugar-equivalent demo: why ‘healthy’ staples can rival candy (cornflakes, potato, rice, banana)

   Using his “teaspoons of sugar equivalent” (derived from glycemic load), Unwin shows how common foods translate into sugar-cube equivalents. The reveal that plain cornflakes, potatoes, and rice can exceed a chocolate bar shocks the host and illustrates hidden carbohydrate impact.

7. 7

   Juice, chocolate, smoothies: the health halos that hide sugar hits

   Unwin explains why juicing concentrates sugar and removes natural slowing factors, leading to rapid spikes and rebound hunger. They discuss white chocolate’s extreme sugar content, milk vs dark chocolate, and why smoothies can behave like “liquid candy.”

8. 8

   Your blood holds shockingly little sugar: why spikes matter (and carbs become glucose)

   Unwin uses a striking fact: all the blood in a person contains roughly one sugar cube’s worth of glucose when normal. This sets up the key principle that starches are ‘glucose molecules holding hands’ and digestion rapidly breaks them into sugar.

9. 9

   Bread and labels: how to tell if packaged food is truly healthy

   They tackle bread’s sugar-equivalent impact and why “no added sugar” can mislead when starch is the main problem. Unwin gives practical label-reading rules, including differences between UK vs US labeling and why ingredient complexity is a red flag.

10. 10

    Keto and appetite control: benefits, goals, and the ‘superpower’ of no cravings

    Unwin positions keto as one end of a carbohydrate-reduction spectrum and stresses aligning diet strictness with personal goals. Both discuss how ketosis can reduce cravings and stabilize cognition, and why people often drift lower-carb after experiencing the mental benefits.

11. 11

    Behavior change that sticks: Jen Unwin’s GRIN method for health goals

    Unwin introduces a practical CBT-inspired framework created by his wife: GRIN (Goals, Resources, Increments, Notice). The model shifts people from guilt and self-blame toward small, repeatable actions reinforced by feedback and identity change.

12. 12

    Helping loved ones & breaking ultra-processed food addiction: honesty, abstinence, and support

    The discussion turns to addiction dynamics—how policing creates secrecy and worsens self-esteem. Unwin shares extreme but real examples (eating bread from bins, even after detergent/bleach) and outlines a stepwise approach: admit the issue, identify trigger foods, and plan for abstinence with gentle support.

13. 13

    Diet and cancer risk, shrinking healthspan, and simple self-tests for metabolic health

    They connect sugary diets, hyperinsulinemia, inflammation, and cancer associations—emphasizing prevention, not only treatment. The conversation widens to declining healthspan, the economic burden of ultra-processed foods, and practical checks like the waist-to-height string test.

14. 14

    Supplements & the magnesium story: soil depletion, choosing forms, and avoiding excess

    Unwin prefers nutrients from real food but argues modern farming and medications can make deficiencies—especially magnesium—more likely. He explains magnesium forms (citrate vs glycinate/threonate) and shares a memorable cow ‘staggers’ story to illustrate widespread magnesium shortfalls.

15. 15

    Closing: CGMs as the ‘cavalry,’ the pediatric diabetes warning, and final takeaways

    Unwin argues CGMs empower people to see cause-and-effect and avoid being fooled by marketing. He closes with concern about rising Type 2 diabetes in children and emphasizes experimentation with measurement, plus support for public-health education initiatives.