Morbidly Obese to Relearning My Own Biology — 90+ lbs Down and Still Trying to Understand It
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For most of my life I believed the standard narrative:
eat less
move more
fat is bad
calories are what matter most
But my lived experience never matched that model.
I’m a large-framed guy with a long history of obesity, blood pressure problems, inflammation, unstable energy, sleep issues, and what felt like a body constantly fighting itself. I also grew up during the peak low-fat/high-carb era, and for years my diet was driven more by survival and affordability than biology.
Recently I started aggressively tracking:
weight
glucose
ketones
blood pressure
pulse
waist size
food intake
fasting response
What surprised me most is that my system appears to respond far more to fuel type than simple calorie math.
When I reduce carbohydrates heavily and increase fat intake substantially, several things consistently happen:
hunger drops dramatically
fasting becomes sustainable instead of miserable
inflammation appears to decrease
glucose stabilizes
ketones rise reliably
weight loss accelerates
mental clarity improves
energy becomes steadier
I’ve now lost over 90 pounds from my peak, and the strangest part is that some of my best metabolic stability has occurred during periods where dietary fat intake was extremely high.
That has forced me into a weird place psychologically because it contradicts decades of assumptions I had about nutrition.
I’m not posting this as universal advice. I’m also not claiming calories are imaginary. What I am saying is that for my body, calories from different fuel sources do not appear to produce equivalent biological outcomes.
Another thing I’ve been wrestling with:
sometimes the scale changes faster than the mind does.
I hit numbers I thought would feel life-changing, and emotionally I often feel… almost nothing. It’s like my brain still expects survival mode even while my body is changing.
I suspect a lot of that is tied to lifelong obesity, stress conditioning, and trauma patterns around survival and self-worth.
At this point I’m less interested in ideology and more interested in understanding mechanism.
So I’m curious:
Has anyone else experienced dramatically different outcomes based on fuel composition rather than just calories?
Has anyone else found very high fat intake unexpectedly stabilizing?
Did massive weight loss change your psychology slower than your body?
I’m genuinely interested in thoughtful discussion and other people’s lived experiences.