Clark Got Shredded with DDF

It’s cool to see how well Data-Driven Fasting works, regardless of where people are in their health and fitness journey or what they choose to eat. 

Clark is a nutritionist, soon to be doctor and future endocrinologist who used the Data-Driven Fasting 30-Day Challenge to lean out after a bulking phase, dropping from 200.2 lbs to 176.8 lbs in just 30 days.   

That’s 11% of his initial body weight at a rate of 2.9% per week!!! 

Clark has become a great friend and moderator in the Data-Driven Fasting Facebook Group and Live Q&As.  He likes to help troubleshoot the more challenging cases when people get stuck on their journey. 

DDF helped me immensely. It was relatively easy, considering all the other stuff I’ve done in the past.  

It’s good to just legitimately give the program a shot for 2-4 weeks before trying to mess with it too much.  Four weeks isn’t that long in the grand scheme of things. Just stick to it.

As we know, the critical factor in any diet that works is to ensure you get adequate protein and avoid the danger zone of fat+carbs together.  

I had been keto and done intermittent fasting a decent amount in the past, but keto stopped working for me.  Keto worked great for me for years (see Clark’s photo in his keto days), but then something happened, and I started getting a bunch of gallbladder issues and a duodenal ulcer. I began to gain weight when it wasn’t working. I kept trying to “make it work”, but the gallbladder stuff just went nuts, and I couldn’t fit the square peg into the round hole anymore.

Now I consume about 200-220 g of protein per day and eat most of my energy from carbs in the form of white potatoes or rice. 

I cycle my carbs a bit based on my activity. I try to avoid combining fat and carbs, with more carbs on one day and more with fat on others.   

I’ve always been somebody who overeats easily.  I can eat a tremendous amount of food, and DDF was the first thing that helped me suppress my appetite.

Over the years of experimentation, Clark has found that the key to optimising his body composition is to focus on whole food protein sources.

I don’t believe in protein powders for weight loss. If I look back at all my photos over the past 15 years or so, I’ve never had good body comp with protein powders. 

My biggest issue has always been appetite.  I could drink a ton of protein from a powder and still eat just as much crap calories afterwards regardless. I don’t believe that they are that effective for weight loss.  I only use protein powders to avoid fasted training, when I don’t have time to eat.

I think the best thing is just to make sure you hit Your Personalised Trigger.  The best spice is hunger.  It’s not too hard to eat a ton of protein if you make sure to do it straight out of a fast, don’t eat other stuff first.

If I got my blood sugar down to 72 mg/dL, I can guarantee that dry chicken breast won’t taste dry anymore. All food tastes pretty delicious when you get low enough from fasting, and then it’s pretty easy to tear through a bunch of meat.

You can check out my interview with Clark, where he discusses his DDF journey here.  You can also join us for the next DDF 30 Day Challenge here.


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