BODYSIM by Well Principled

Join our private beta for 100 users at bodysim.com/beta to gain muscle and shed fat with a digital twin of your body.

The Problem:

Muscle gain and weight loss journeys are harrowing because you don’t know what nutrition and exercise plans to follow:

• Should I feel guilty not training harder, or would that lead to injury?
• Is that scale jump a signal to change, or just noise?
• Will my diet cause workout fatigue, limit my muscle gains, or just add fat?

Current solutions (MyFitnessPal, other apps, and high-end clinics) suffer from three core problems:

1. The right plan is different for every body. Your unique metabolism and physiology, like maintenance calories, can easily be 50% off from online “calculators”—enough to go from losing fat to gaining it.
2. Data is too noisy to steer by. The scale (50% fat error), your fitness tracker (50% calories error), and even DEXA scans (too infrequent) only provide a noisy, fragmented picture.
3. Body science is scattered and conflicting. YouTube is full of “bro science,” and even a rockstar team of dieticians, personal trainers, and sports doctors wouldn’t agree with each other. Without those fundamentals, LLMs and correlation models can’t work either.

No existing solution quantitatively synthesizes all the science and your data into coherent, cogent plans.

The Solution:

BODYSIM is an app-based digital twin of your body, and it’s potential:

• Collects your data from food logging, BIA weigh-ins, DEXA scans, at-home blood tests, and wearables
• Learns to “triangulate the truth” of your unique metabolic profile, resistance training age, and more
• Adjusts your plan by simulating what will happen to your body

BODYSIM is a science-based simulation of macronutrient balance and muscle hypertrophy. It includes cell turnover, oxidation for energy, lipolysis of fat stores, synthesis of new muscle, glycogen resynthesis, GI latency, and even ketones. We’re continuing to expand BODYSIM to endocrinology and beyond.

Why Trust Us:

This is what we do; our core tech distills messy academic literature into simulations. We've deployed science-based models of consumer behavior and battery electrochemistry to enterprise. Last year, we built BODYSIM to guide our own fitness journeys. It worked. I put on 45 lbs of muscle, and my co-founder put on 25 lbs of muscle while losing 50 lbs of fat.

And it worked in our alpha test (ages 29-69, 50% female). 8 alpha testers lost an average of 12.6 pounds in 3 months, and 4 alpha testers with a maintain goal changed <1.4 pounds in 3 months.

The Product:

Define: your starting point and goals

• Set your composition (fat, muscle) goal
• Complete your DEXA scan
• Get personalized nutrition (macronutrient) and exercise targets

Track: signals and measurements in the app

• Weigh-in daily on included Withings Body Scan
• Log your meals (barcode scanner, label scanner, recipe sharing)
• Connect your own fitness tracker (any in Apple Health)
• Log your workouts (2,200 exercise db)
• Test your blood biomarkers with our monthly at-home kits

Simulate: scenarios of your metabolism and physiology that hit your goals

• Make up your deficit and lose X pounds more fat by focusing on what matters
• Gain X pounds more muscle by increasing protein intake by Y grams/day
• Lose X pounds more fat by decreasing fat intake by Y grams/day
• Decrease workout fatigue by increasing carb intake by Y grams/day
• Plus 4 more key recommendations

The Ask: Join the Beta Cohort!

For our 100-person private beta, get a steep discount to our hard costs only. Instead of a nutritionist, personal trainer, and sports doctor, BODYSIM can do it all for a one-time fee of $875 (80% off). Your feedback and data will help us greatly improve the app (iPhone only) and simulation.

This includes:

• Subscription to BODYSIM and white-glove service, Sept 16th to end of 2024
• Incoming & outgoing DEXA scan at a DEXAFit franchise ($300 value)
• 3 monthly at-home blood tests of hormones, vitamins/minerals, macros, and training ($495 value)
• Withings Body Scan BIA scale ($400 value)
• Escali kitchen food scale ($30 value)
• BODYSIM t-shirt, blender bottle, and heat pack (+change 10lbs to unlock a tank top!)

Find your peak potential with BODYSIM: join the beta at https://bodysim.com/beta