Are you joining us for the upcoming 28-Day Iron + Asphalt Challenge?
-> Join the 28-Day “Iron + Asphalt” Drop-a-Size Challenge
The basic idea is simple:
We’re combining kettlebells + rucking + performance-focused intermittent fasting to help you lose up to a full clothing size in 28 days while still training hard, maintaining muscle, and feeling strong.
And one of the biggest parts of the challenge is going to be the nutrition side.
I’m taking my Feed the Beast / Modern-Day Warrior approach and turning it into a full Performance Intermittent Fasting Workshop.
See – I have tried I’ve personally used intermittent fasting for well over a decade, and I’ve used variations of this approach with hundreds of clients over the years.
There’s also a solid body of research behind intermittent fasting. It can be a very effective tool for controlling calorie intake and body weight, and depending on the person and the approach, it may also help improve things like blood-sugar control and other markers of metabolic health.
But here’s the part I think gets missed:
If you’re someone who actually TRAINS, you need to approach fasting differently.
You can’t necessarily take the exact same approach as someone who’s relatively sedentary and simply trying to eat fewer calories.
If you’re lifting weights, training with kettlebells, rucking, doing conditioning work and trying to maintain or build lean muscle, you have some additional things to think about.
You need to:
- Get enough protein
- Eat enough total food to recover
- Time your meals intelligently around harder workouts
- Know when fasted training makes sense — and when it doesn’t
- Use carbs strategically instead of automatically eliminating them
- Adjust your fasting window when your training demands change
That’s the approach we’re going to take here.
-> Join the 28-Day “Iron + Asphalt” Drop-a-Size Challenge

We’re using intermittent fasting as a fat-loss tool without sacrificing performance.
Every Monday at 12 PM CST, we’ll meet live for a short training (roughly 15-30 minutes) – followed by open Q+A.
(Can’t make it live? No problem. Every session will be recorded, so you can go back and watch it whenever you want.)
And rather than just tell you we’re going to “cover intermittent fasting,” here’s the actual plan:
WEEK 1: THE FASTING BLUEPRINT + YOUR MEAL PLAN
- What intermittent fasting actually is
- Why it can work so well for fat loss
- 12:12 vs. 14:10 vs. 16:8
- How to choose the right fasting window for YOU
- Morning fasting vs. earlier eating windows
- What you can drink during a fast
- How to deal with hunger
- How to gradually extend your fasting window
- What to do if you train in the morning
- What to do if you train later in the day
- How to set up your exact fasting schedule for the week
- How to structure your meals inside the eating window
- What your first meal should look like
- How much protein to build into each meal
- Several plug-and-play meal templates so you don’t have to guess
WEEK 2: EAT TO LOSE FAT AND PERFORM
- How much protein you need
- Why protein becomes even more important during fat loss
- How many meals to eat inside your eating window
- How to build your first meal after a fast
- Protein + produce + smart carbs + healthy fats
- Why carbs are NOT the enemy if you’re training hard
- How to place more carbs around tougher workouts
- How to avoid the giant “reward meal” after fasting
- Hydration and electrolytes
- Alcohol and fat loss
- How to adjust your portions based on your size and goals
- How to tweak the Week 1 meal templates for YOU
WEEK 3: FASTING + TRAINING
- Can you train fasted?
- When fasted training works really well
- When eating before training might be smarter
- Strength training while fasting
- Kettlebell training while fasting
- Rucking while fasting
- Why walking and rucking pair so well with fasting
- Hard conditioning and fasting
- What to eat after your workout
- How soon you actually need protein after training
- How to time carbs around harder workouts
- Signs that you may be under-fueling
- What to change if your workout performance starts dropping
- How to adjust your fasting window on harder training days
WEEK 4: MAKE IT WORK IN REAL LIFE
- How to handle weekends
- Restaurants
- Travel
- Holidays and social events
- What happens if you break your fasting schedule
- What to do after an overeating day
- Hunger-management tricks
- What to change if fat loss stalls
- Moving between 12-, 14- and 16-hour fasts
- How to transition from fat loss to maintenance
- When fasting may NOT be a good idea
- How to build a long-term approach after the 28 days are finished
By the end, I want you to understand not just what to do for 28 days, but how to adjust the approach yourself going forward.
If that sounds like what you need right now:
-> Join the 28-Day “Iron + Asphalt” Drop-a-Size Challenge
We start Monday!
— Forest







