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Udo Lost Weight and Improved Mental Health

Bryan Braning

Friday, August 22, 2025

A 46-year-old man began a carnivore diet after struggling with weight gain and belly fat despite exercise. After 12 months eating only meat, he achieved his lowest body fat percentage since his early 20s, experienced improved mental clarity, eliminated sugar cravings, and maintained regular digestion while challenging conventional nutritional advice.

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12 Months A Keto-Carnivore
If you are like most people out there, you may clutch your pearls at the thought of somebody eating nothing but or mostly meat. And when it's not meat it is exclusively from the animal kingdom. And NO fruits and vegetables!

Turns out there are lots of people like this. Not only are they doing fine — they're thriving on it!

I am one of these freaky weirdos and here is why and what it is like.

My Story — How I Became A Keto-Carnivore
My low carb "career" started, when pants I had bought for a trip to Argentina started to not fit any more. Although I would explain it away, or tuck in my tummy, I knew that this was not ok.

Everybody has a certain self-image. And mine was definitely not that of a fat and lazy arse. I clearly remember one day when I went to the supermarket that I could feel the fat dribble around my belly.

It's not to say that I was obese, not even remote. I was rather slim by the standards of most people but I could feel I was drifting slowly away from my self-image. Unless I did something about it.

I had remotely heard something about carbohydrates being responsible for growing fat. I thought that low carb was just one of many diet crazes that regularly swash across the pond.

I was heavily influenced by certain Joe Weider bodybuilding magazines from the early 1990s which advocated for eating lots of carbohydrates, especially pasta and stuff. Which I did. In hindsight it is really a wonder I did not grow fat — although I could never really get rid of my belly fat. Despite running and all.

With this background, reducing carbohydrates striked me as odd. Until I stumbled upon Gary Taubes' "Good calories, bad calories", that is (thanks Gary for that! Someday I will translate your book into German — promised).

We all know this quote which is attributed to Einstein that the definition of madness is that you do the same over and over again always expecting different results.

I had also come across a book by a German cancer-researcher who advocated for low-carb in the treatment of cancer, Dr. Johannes Coy.

The book I read was "Die neue Anti-Krebs Ernährung" (The new anti-cancer diet).

I thought: "What the heck? — let's give it a try!". I followed Coy's rule of thumb to reduce carbohydrates to 1g per kg of bodyweight per day.

Results Of My Low-Carb Journey
I dropped weight and reduced belly fat. I remember losing 5 kg bodyweight within the first week or so. That shocked me. Until I found out that there is a lot of water lost — carbohydrates drive inflammation. Inflammation drives water retention. Reducing inflammation means losing water. This explains most of the rapid weight loss in the beginning and is actually a good sign.

It was not long until I re-fitted into my pants bought for the Argentina-trip again. It is to this day my favorite measure of body-composition.
As most low carbers I first tried to stay as close as possible to "normal eating" — i.e. also eating low carb cakes and stuff. Although I never bought franken-food and always did it myself (I am a hobby-cook so not problem here) I believe that this way of eating does do no service.
For one thing it is hard to get away from your sweet tooth this way. This automatically leads at some point to "Ah, what the heck … let's eat this chocolate — it's dark and healthy" or "Come on, one potatoe is not much, is it?"

So after a while I noticed that belly-fat was creeping in again — then again I had to reduce carbs.

One day — somewhere around my birthday on a hot summer day in August — I believe it was 2012 — I came across a long thread in a low carber forum entitled "The real human diet is a totally keto-carnivorous one".

In this thread Owsley Stanley, soundman of the Grateful Dead, known as "The Bear" talked about his keto-carnivorous lifestyle he had been on for 47 years! This long thread with lots of interesting (and sometimes hostile) comments took me a few days to read. And I read every single page.

For some reason this idea of a totally keto-carnivorous diet stuck in my head.

A year later I read the whole thread again. It again stuck. I started to eat my steak rare (or "bleu" —fried just one minute from each side).
It was only in 2017 that I stumbled upon Shawn Baker on Twitter who just had started a meat-only diet and posted regularly about it. Meanwhile he has turned into a kind of social-media celebrity with, at the time of this writing, more than 16,000 followers (it was less than a 10th of this when I started following him. Unbelievable!).

At this point I had pondered an all-meat diet for quite a while — and thought that I could try it too.
I also discovered certain keto-carnivore websites which recommend to try an all-meat diet for 30 days (meat and water). I thought I could try it for 30 days.

Wow! I believe the authors of these website know exactly that once you start out on a zero-carb keto-carnivorous journey, you won't go back.

At least that's what happened in my case. I have sticked to this all-meat regime since. With the only exception of a piece of low-carb cake on my birthday.

What I Eat And Drink
My diet consists primarily of ribeye or entrecote, ground beef, and ground beef mixed with pork in equal proportions. I also enjoy chicken, especially chicken wings, all kinds of pork, eggs, and liver every now and then. For beverages, I drink water, raw milk, and kefir, along with homemade bone broth. I only occasionally have coffee, mostly on weekends.

It seems that a keto-carnivorous diet somehow reduces your tolerance for alcohol. Even small amounts may give you a slight hangover. Automatically this leads to a reduction in alcohol consumption. I consider this to be a positive effect. I still consume an occasional glass of dry red wine or carb-reduced beer.

I eat my steaks fried 3 minutes from each side, so basically rare to medium rare. I season with smoked sea-salt and pepper or red pepper.
I consume plant-matter only in terms of condiments: pepper, basil, garlic, onions, lemon.

My current favorite protein shake consists of 200ml raw milk, vanilla powder, and 2-3 raw eggs blended together.

Recently I have bought my first crock-pot. I love it. It has opened a whole new culinary realm for me.

I have also come to love "smashed burgers" which I had never come across before my keto-carnivore way of eating. My recipe involves 500g of ground beef and ground pork mixed equally, fresh chopped basil, garlic cloves, italian seasoning, smoked sea salt, and pepper. I form this into meatballs, place them in a very hot steel pan, and press them flat before frying for 1-2 minutes on each side.

Funny thing about keto-carnivory is that you start to want to eat the same over and over again. I could eat ribeye, smashed burgers, and chicken wings every single day and not get tired of it.

Recently find myself gravitating towards experimenting with raw meats — but "pssst!" don't tell my wife!

My Keto-Carnivore Results
I am 46 and now have the lowest bodyfat percentage since my early 20s. I feel the urge to workout more than I used to (what I do is intensive kettlebell workouts for 15 minutes and 2 x 20 seconds sprints every now and then).

I am essentially free of pain. Not that I was in pain before — but I somehow feel that my overall connective tissue quality has improved. Which is no wonder given that 15% of your body's dry mass is collagen. Eating meat means consuming collagen which then can be used by your body to repair any tissue lesions. I believe that lots of pain-patients could relieve most of their issues by simply adopting this way of eating.

Mental clarity has improved significantly. Many people note a certain mental clarity when on very low carb or ketogenic diets. Keto-carnivory, at least in my case, pushes that by a margin. I see clear pictures and am even more outspoken than before.
I maintain clean teeth all the time. I have virtually no plaque on my teeth. They are so clear I sometimes even forget to brush them. Really. Makes me think that dentists are totally superfluous.

I have lost any urge to eat sweet stuff. It simply is not appealing to me any more. Even if it is right in front on me I have no problem ignoring it. To me it is simply no human-appropriate food.

I have lost any left trust whatsoever in any "health" authorities — be it doctors, nutritionists or scientists. All of them have no fricking idea what they are talking about. I can see it from their body composition and also from their body structure. No doctor with a pot-belly is going to tell me what healthy eating is — because he himself is proof that he has no clue.

And, no, I have not developed scurvy!

The Poop Question
One question that seems to really concern people is "Can you poop without fibre?"

People seem to be kind of obsessed with their poop. I normally am reluctant to discuss my poop or poop frequency in public. But as this is apparently so important to most people I have to cover this here.

Basically not only is fibre not necessary for regular stool — it might even hinder frequent stool and also cause constipation.
As a keto-carnivore for the last 12 months I can definitely say that fibre is not necessary for frequent stool.

What changes on a keto-carnivorous diet is the amount of poop and probably the frequency. When there is no more fibre left in your diet which sucks up lots of water and thus increases in size up to 5 times its original size, then it is logical that the amount of stool is reduced.
In the beginning it was in my case only every 2–3 days. Which did not bother me at all. When I occasionally had runny stool, I fixed it by reducing my fluid intake, reducing coffee consumption, and adding raw milk and kefir to my diet.

I am now regular, pooping almost every day, with consistently normal stool that requires minimal cleanup and is rarely smelly.

What Does It All Prove?
James DiNicolantonio, the author of the book "The salt fix", once asked on Twitter what it is that some people are so keen on restricting their diet in such a way.

Well, here is the answer: It's fun to prove to yourself that practically everything you have been told about nutrition is completely false.
I've learned that the advice to eat lots of carbs is wrong - carbs are not essential and cause obesity and diabetes. The claim that meat is bad is false - meat is like a superfood, full of proteins, fats, minerals and vitamins. The recommendation to avoid sun is incorrect - sun is essential for Vitamin D production. The suggestion to avoid salt is misguided - salt is essential and doesn't raise blood pressure. The warning against saturated fat is unfounded - saturated fat is essential while vegetable oils are inflammatory. The belief that vegetables are healthy and necessary is questionable - they're inferior to meat nutritionally and contain anti-nutrients. Even the advice to drink lots of water may be wrong - excessive water consumption can deplete minerals and stress kidneys.

The Simplest Dietary Advice Ever?
​Eat meat when hungry. Drink water when thirsty. Could it be that simple?

Disclaimer: These testimonials are from people who shared their success stories on keto carnivore diet which is Revero’s nutrition therapy method. They are not from actual Revero patients. Clinical results are not guaranteed and outcomes are specific to each patient.

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