This 8-minute clip from Diary of a CEO is quietly devastating.
Dr. Annette Bosworth brings a simple $60-70 dual glucose/ketone meter on set and tests everyone live, first thing in the morning.
The numbers don’t lie:
Dr. Boz (stops eating at 3pm, long-term ketogenic):
Glucose: 83 mg/dL
Ketones: 1.7 mmol/L
Dr. Boz Ratio ≈ 49 → deep fat-burning state
Steven Bartlett (ate late the night before):
Glucose: 86 mg/dL
Ketones: 0.9 mmol/L
Ratio ≈ 95 → still good, but noticeably behind Dr. Boz
Jack (lean, high-volume runner on the team):
Glucose: 88 mg/dL
Ketones: 0.1 mmol/L
Ratio ≈ 880
Dr. Boz: “That’s trash being made and never taken out. Welcome to my clinic in 10 years.”
Key revelations in just 8:52:
- Late-night eating destroys next-morning ketones, even for someone in their 30s
- Sunrise cortisol releases stored glucose every single day, like an automatic unpaid meal
- Dr. Boz’s twenty-something sons now voluntarily stay in ketosis for sustained focus at law school
- Most “fit” high-carb endurance athletes she tests sit at 0.1-0.3 ketones and don’t realize the long-term cost
You can buy the exact same meter and strips and know your own numbers tomorrow morning.
This short segment is one of the clearest metabolic reality checks I’ve ever seen.
Who’s checking their ketones this week after watching this?
Just watched Steven Bartlett get absolutely SCHOOLED by Dr. Boz in 6 minutes that will probably age-reversing-pilled half of the internet today
She looked him dead in the eye and said:
“I’ve been practicing 25 years.
Parkinson’s has 3,500 of my patients.
I have ZERO.
Because Parkinson’s only wins when you let the trash pile up in your brain for decades… and then act shocked when the diagnosis hits.”
Her exact words:
“The slow death of your brain doesn’t announce itself.
It starts with:
- the belly fat that won’t shift
- joints that ache “for no reason”
- brain fog at 3 pm
- joy slowly draining from life
- waking up tired even after 8 hours”
That’s not “getting old”.
That’s trash in your brain you still have time to take out.
Then she roasted Steven’s eating pattern live on air:
“Pasta + late dinner?
One bite after 6 pm costs you like TEN bites at breakfast when you’re over 40.
Your insulin is still screaming at 3 am.
That’s how you age in fast-forward.”
Her fix?
Dead simple:
- Finish eating by 6-7 pm (non-negotiable as you age)
- Give your body 16+ hours without food regularly
- Trigger autophagy = your brain’s trash disposal service
- Watch mood, energy, focus, and waistline transform in months
She ended with this line that gave me chills:
“At 54 I want to be as sharp, energetic and alive as Steven is right now.
Most people are decaying.
I want to be accelerating.”
If you only watch ONE health clip this year, make it these 6 minutes.
Your 54-year-old self is begging you to hit play.
Who’s committing to their last bite before 7 pm tonight?
(Just sharing a public conversation between Steven Bartlett & Dr. Annette Bosworth, MD — no medical advice, just a wake-up call everyone’s talking about)