Insulin Doctor: This Is The First Sign Of Dementia! The Shocking Link Between Keto & Brain Decline!

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Nov 24, 2025

Dr. Annette Bosworth, known as Dr. Boz, is an internal medicine physician and keto advocate with over 25 years of experience. She reveals how ketosis can reverse insulin resistance and even improve brain health, emphasizing that improperly approached keto can harm your brain. Annette discusses the importance of meal timing, signs of insulin resistance, and shares the transformative benefits of a sardine-only reset. She highlights surprising links between diet and cognitive decline, offering practical advice for maintaining mental clarity and health.

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00:00 / 00:00

Ketones As Preventive Medicine

Routinely making ketones can reverse many chronic diseases by lowering excess insulin and inflammation.
Annette Bosworth argues ketone production is a preventive shift from Medicine 2.0 to Medicine 3.0.

00:00 / 00:00

Eat Earlier, Not Late At Night

Avoid eating large carb meals late at night because late calories cause prolonged insulin elevation and inflammation.
Shift calorie timing toward morning and stop eating early to reduce insulin-driven aging.

00:00 / 00:00

Insulin Creates 'Trash' Not Just Fat

Insulin's primary role is to move glucose into cells and, when excessive, to store excess as fat and drive growth signals.
Chronic high insulin creates 'trash' between cells and accelerates aging and disease.

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No.1 Keto Doctor DR. ANNETTE BOSWORTH reveals how to reverse insulin resistance, cut belly fat, avoid early dementia, why eating late spikes glucose, and the sardine-only reset for ketosis.

Dr Annette Bosworth, commonly known as Dr Boz, is an internal medicine doctor with over 2 decades of experience, who helps reverse medical problems through healthy Keto living. She educates the audience on her YouTube platform ‘Dr Boz’ and is the bestselling author of several books, including, ‘KetoCONTINUUM: Consistently Keto Diet for Life’.

She explains:

◼️How keto done wrong can actually damage your brain

◼️The fastest way to generate ketones and reduce inflammation

◼️Why breakfast is the most dangerous meal for insulin resistance

◼️The simple test that tells you if your brain is running on fat or sugar

◼️The science behind the “Dr. Boz Ratio” and how it predicts healing

(00:00) Intro
(02:16) What Made You Who You Are Today?
(03:23) Medicine 2.0 (Fixing) vs Medicine 3.0 (Preventing)
(04:17) Predicting Chronic Illness 10 Years Before You Get It
(08:29) Best Time to Eat
(13:05) The Biggest Issue With Insulin Resistance
(14:27) Scary Signs You Have Excess Insulin
(18:35) Check for Skin Tags and Hairless Toes
(20:42) My Patients Reversed Grey Hair on Keto
(21:40) How to Measure Your Ketone Levels
(23:15) Benefits of Being in Ketosis
(25:19) Brain Differences on a Keto Diet vs Not
(27:38) How Long Did It Take Annette to Achieve Ketosis?
(31:14) Weightlifting on Keto
(32:38) Improvements in Strength and Power
(34:16) Can Keto Help Neurodegenerative Diseases?
(38:39) Testing Steve's Ketones and Blood Sugar
(41:06) Testing Dr. Boz's Ketones
(42:37) How Cortisol Affects Metabolism
(43:41) Jack's Ketone Levels
(45:13) Do I Need to Fully Cut Carbs?
(46:27) My Mum's Cancer Journey
(47:32) 12 Steps to Get Into a Consistent Ketogenic State
(51:33) The Difference Between Men and Women on Keto
(54:49) The Sardines Challenge to Start Keto
(57:31) What Macros Do I Need to Get Into Ketosis?
(58:07) Grocery List for a Keto Diet
(59:15) What About Net Carbs?
(59:36) Woman Who Ate Only Sardines for 30 Days
(1:02:58) Will High Fat Affect the Gut Microbiome?
(1:06:56) Will My Microbiome Be Diverse Enough on Keto?
(1:07:36) The Role of Vitamin D
(1:08:33) Lowering Insulin for Higher Vitamin D
(1:09:49) Ads
(1:10:43) Magnesium
(1:11:43) Omega-3
(1:11:54) Taking Exogenous Ketones
(1:12:24) Exogenous Ketones vs Ketones Produced in the Body
(1:14:32) Putting My Mum on Keto When She Was Dying of Cancer
(1:20:41) Will This Reverse Cancer?
(1:22:55) Methylene Blue
(1:24:47) Do You Take Creatine?
(1:27:01) GLP-1 Natural Alternatives
(1:28:55) How to Stop Cravings
(1:31:45) How to Keep People Motivated With Their Health Journey
(1:32:57) Ads
(1:35:08) They Tried to Sue Me for Fraud
(1:46:54) What Helps You Find Inner Peace in Stressful Moments

Follow Dr Boz:

Instagram - https://bit.ly/4pjpvvs

YouTube - https://bit.ly/4p9b5ha

Website - https://bit.ly/3X0aHWo

You can purchase Dr Boz’s book, ‘KetoCONTINUUM’, here: https://amzn.to/49YxIQZ

Independent research: https://stevenbartlett.com/wp-content/uploads/2025/11/DOAC-Dr-Annette-Bosworth-Independent-Research-further-reading-1.pdf

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