Intermittent Fasting for 30 Days: From 13.3% to 10.9% Body Fat With Zero Calorie Counting (Here’s the Exact 16:8 Protocol He Used)

Intermittent fasting sounds counterintuitive—deliberately skipping meals when food is readily available.

Yet this eating pattern has exploded in popularity, and for good reason.

While most associate it strictly with weight loss, intermittent fasting offers benefits ranging from cellular repair to improved mental focus.

Runner and content creator recently documented his 30-day intermittent fasting experiment during the final stretch of his 75 Hard challenge, revealing how this approach helped him drop from 13.3% to 10.9% body fat—without counting a single calorie.

Why Choose Intermittent Fasting Over Traditional Dieting

Counting calories creates psychological strain for many people. Meticulously tracking every morsel can transform eating from pleasure into stress.

I also do not want to count calories because I feel like counting calories gives me a really bad relationship with food. I don’t know. It just like messes with my brain.

After hitting a plateau at day 40 of his 75 Hard challenge, he consulted AI tool Grock for alternatives. The solution? A 16:8 intermittent fasting protocol—16 hours of fasting followed by an 8-hour eating window.

This approach sidesteps obsessive calorie tracking while naturally creating a caloric deficit through time restriction.

The Morning Routine: Fasted Workouts and Strategic Caffeine

His typical day begins at 5:00 AM, roughly 10 hours into his fast. After a 3-minute ice bath in 37-degree water, he tackles his first workout—often a 12-mile run—completely fasted.

Coffee Without Breaking the Fast

Strategic beverage choices matter during fasting windows. He swapped his whole milk cappuccino for an Americano—zero calories, no blood sugar spike, and the taste satisfaction remains.

Basically, the Americano has no calories in it and means that I’m not breaking my fast and doesn’t spike my blood sugar and it tastes amazing.

Caffeine serves double duty: providing energy while naturally suppressing appetite—crucial when several hours remain before the eating window opens.

Running on Empty: The Science of Fasted Cardio

Many athletes recoil at the thought of exercising without breakfast. He discovered the opposite works better for his body.

I just like feel like when I eat food before I run that my stomach is full and then it feels like more difficult to run.

The key lies in intensity management. During easy zone 2 runs—heart rate between 115-120 BPM—the body preferentially burns fat and ketones rather than quick-acting carbohydrates. Speed workouts and 20-mile efforts require fuel, but moderate-intensity training can tap stored energy reserves effectively.

Interestingly, exercise appears to blunt hunger signals rather than intensify them during fasting periods.

Navigating the Hunger Window: Hours 10-16

By 10:00 AM, after burning approximately 1,500 calories through two workouts, hunger naturally intensifies. This represents the challenging phase where discipline determines success or failure.

Distraction as Strategy

Sitting idle invites obsessive food thoughts. Staying productive proves essential—editing videos, finishing work projects, anything requiring mental engagement.

Another coffee helps bridge the gap. Any liquid provides some satiation, but caffeine’s appetite-suppressing properties offer particular advantage when postponing meals.

Zero-Calorie Hydration Hacks

Post-workout hydration doesn’t require breaking the fast. Electrolyte mixes with minimal calories (around 5) and plain creatine (zero calories) support recovery without triggering insulin response or ending the fasted state.

Breaking the Fast: Strategic Nutrition Choices

After 16 hours, the eating window finally opens. This critical moment determines whether intermittent fasting produces results or becomes another failed diet attempt.

First Meal Priorities

High-protein whole foods form the foundation. Typical lunch options include:

• Steak with eggs, avocado, and cottage cheese
• Four scrambled eggs with similar nutrient-dense sides
• Chipotle burrito bowl for convenient, macro-friendly meals on busy days

The temptation to “make up” for lost eating time looms large. Discipline during the eating window matters as much as discipline during fasting.

You still have to be disciplined if you want this to work. You can’t just chow down on literally everything in sight.

Smart Snacking Within the Window

Between lunch and dinner, hunger may strike again. Rather than reaching for processed foods that undermine progress, wholesome options satisfy cravings without derailing goals.

His go-to snack? Rice cakes topped with banana and peanut butter—providing carbohydrates, healthy fats, and natural sweetness that rivals candy without the metabolic crash.

The Results: Beyond the Scale

Over 30 days—from day 40 through day 75 of his challenge—intermittent fasting combined with high training volume produced remarkable body composition changes.

Body fat dropped from 13.3% to 10.9%—losing those notoriously stubborn final pounds without calorie counting or restrictive food rules.

I went from 13.3% body fat all the way down to 10.9% body fat. And I think one of the major reasons for that was the intermittent fasting.

He attributes success partly to forcing his body into ketone utilization during morning fasted states, combined with workouts specifically targeting fat metabolism rather than carbohydrate burning.

Is Intermittent Fasting Right for You?

Individual response varies dramatically. What works brilliantly for one person may fail spectacularly for another.

Key considerations before starting:

• Training volume—High-intensity athletes may require different fueling strategies
• Psychological relationship with food—Does restriction help or harm your mental health?
• Sustainability—Can you maintain this pattern long-term, or will it become another abandoned diet?
• Medical conditions—Consult healthcare providers, especially with diabetes, eating disorders, or other health concerns

The Sustainability Factor

Short-term results mean nothing without long-term adherence. The best diet is the one you can actually follow.

The habits that matter the most, the ones that are going to make the most impact are the ones that you can actually keep on doing.

Intermittent fasting’s simplicity offers advantages over complex meal plans. Rather than tracking macros or weighing portions, you simply watch the clock—making compliance straightforward for many people.

Common Pitfalls to Avoid

Binge eating during the window negates caloric deficit benefits. Treating the eating period as unrestricted indulgence defeats the purpose entirely.

Choosing processed foods over whole foods compromises nutritional quality. Chips and cookies fit within time restrictions but fail to support body composition goals or overall health.

Ignoring hunger cues and energy levels can lead to overtraining or undernourishment. Listen to your body—chronic fatigue or performance decline signals adjustment needs.

Expecting identical results despite different circumstances. His training volume—running excessive mileage with twice-daily workouts—creates variables most people don’t replicate.

Making Intermittent Fasting Work for Your Lifestyle

Success requires personalization. The 16:8 protocol works for many, but variations exist—18:6, 20:4, or alternate-day fasting each offer different approaches.

Start gradually if new to fasting. Begin with 12-hour overnight fasts, progressively extending the window as adaptation occurs. Sudden dramatic changes often backfire.

Maintain whole food emphasis during eating windows. Prioritize protein, include healthy fats, add vegetables liberally, and time carbohydrates around training for optimal performance and recovery.

Stay hydrated throughout fasting periods. Water, black coffee, and plain tea don’t break fasts while supporting hydration and appetite management.

Most importantly, assess your relationship with food honestly. If time restriction triggers disordered eating patterns or obsessive thoughts, intermittent fasting isn’t appropriate regardless of potential benefits.

Finding sustainable habits that align with personal goals and psychology creates lasting transformation—whether through intermittent fasting or alternative approaches.