Nutrition + body composition challenge · Sep 21 to Oct 30
Lean for
Halloween 2026
Five weeks to lose body fat, build muscle, and lock in habits you can keep. Weekly InBody scans, unlimited sauna, a kickoff nutrition seminar, and a scoreboard that rewards real change, not just the number on the scale.
Sign up and pay by September 21. Spots are first come, first served.
Challenge entry
Two ways in.
Grounded members
$79
$59 if more than 10 people sign up
- Weekly InBody screening, free
- Unlimited sauna for the whole challenge
- Kickoff and nutrition seminar
- Before and after photos and your full score breakdown
Not a member yet
$299
The full challenge plus five weeks of membership
- 5 weeks of Grounded CrossFit membership, every class
- Weekly InBody screening, free
- Unlimited sauna for the whole challenge
- Kickoff and nutrition seminar plus challenge guidance
Payment by Venmo, Cash App, or Zelle. Text us and we will send the details and confirm your spot.
Scoring
Points for fat lost. Points for muscle gained.
Points from both add up to your final score, so you can win by losing fat, gaining muscle, or both. Tie-breaker: highest class attendance during the challenge.
Grand prize, $1,000+ value
The Lean for Halloween 2026 champion takes home:
- One month of Grounded CrossFit membership, free
- Any pair of glasses from Sunglass Hut, Chanel and Prada included
- A personal training session with Natalie
- The Lean for Halloween 2026 Winner shirt
- 10 free meals from John Fit Foods
Important dates
Five weeks, start to finish.
- Mon Sep 21
Sign-up and payment deadline
Venmo, Cash App, or Zelle. Text us and we will get you set.
- Mon Sep 21, 6:30 pm
Kickoff + nutrition seminar
First InBody scan, official before photos, the nutrition plan, goals, scoring, and questions. If you cannot scan that night, do it by Wednesday, September 23.
- Sep 21 to Oct 30
The challenge
Train, eat like you mean it, scan weekly, use the sauna. Just not on your final scan day.
- Oct 30 to Oct 31, noon
Final InBody + after photos
Your start and final scans set your official score. No sauna on final-scan day so the numbers stay fair.
InBody screenings
Measured on the InBody, not the bathroom scale.
The InBody 380 breaks your weight into muscle, fat, and water in about a minute. Every Grounded membership now includes one free screening a month, with extra scans at $3. Challenge participants scan free every week.
The goal
Not a crash diet.
This is not a contest to see who can make the scale drop fastest. We want you to lose fat while keeping or building muscle. For five weeks the focus is:
- Prioritize protein
- Eat whole, nutrient-dense food
- Train consistently
- Build and keep muscle
- Reduce body fat
- Track real body-composition change
- Keep the habits when the five weeks are over
Unlimited sauna for the whole challenge. Skip it on final-scan day.