Planning

Body Recomposition Planner

Plan body-fat reduction pace, deficit targets, and protein baselines around realistic recomposition timelines.

Decision Summary

Suggested daily calorie deficit

338 kcal

Uses lean-mass-preserving pace to estimate deficit and protein needs.

Target Weight Glide Path

Linear scale-weight projection from the current starting point to the goal.

StartW12W20

Projected scale weight

77.9 kg

Key Metrics

Target scale weight

77.85 kg

Fat to lose

6.15 kg

Weekly loss pace

0.31 kg

Protein target

140.5 g

How to use it

Enter current body fat percentage, target body fat, and training experience. Recomposition (simultaneous fat loss + muscle gain) is most effective for beginners, detrained individuals, or those returning after a break of 3+ months.
Realistic recomposition rates: beginners lose 0.5–1% body fat per month while gaining 0.5–1 lb muscle per month simultaneously. Intermediate and advanced trainees typically cannot recomposition at meaningful rates — they need dedicated cut/bulk cycles.
All three conditions must be met for recomposition to work: adequate protein (0.8–1.0g/lb), consistent resistance training (3–4x/week), and a slight caloric deficit (150–300 calories below maintenance).
The scale is misleading during recomposition — muscle adds weight as fat is lost. Use progress photos, waist circumference, and strength gains as your primary progress metrics. Scale weight may not change for 4–8 weeks.
If your planner timeline exceeds 12 months to reach your goal, a structured cut first (10–16 weeks) followed by a maintenance phase is likely faster than recomposition for intermediate lifters.

AI Integrations

Contract, discovery endpoints, and developer notes for agent use.

Always available for agents

Tool contract JSON

https://aifithub.io/contracts/body-recomposition-planner.json

Stable input and output contract for this exact tool.

Human review

People can use the browser page to sense-check outputs and charts, but agents should still execute against the contract and discovery endpoints.

/agent-tools.json - machine-readable tool index.
/llms.txt - human-readable model discovery guide.
/.well-known/webmcp.json - WebMCP capabilities manifest.
/.well-known/ai-plugin.json - plugin-style discovery manifest.

{
  "tool": "body_recomposition",
  "weight_kg": 84,
  "body_fat_percent": 24,
  "target_body_fat_percent": 18,
  "weeks": 20,
  "resistance_training_days": 4
}

Open tool contract JSON Open AI integrations guide

Expand developer notes

Agent playbook

Resolve Body Recomposition Planner from /agent-tools.json and open its contract before execution.
Validate inputs against the contract schema instead of scraping labels from the page UI.
Open the browser page only when a person wants to review charts, assumptions, or related tools.

Agent FAQ

Should ChatGPT, Claude, or another agent click through the UI?

No. Start with /agent-tools.json, then follow the tool's contract URL. The page UI is for human review, not parameter discovery.

When do tools show Quick and Advanced?

Every tool opens in Quick Start first. Advanced Controls keeps the same scenario, reveals more assumptions or diagnostics, and every tool keeps AI integrations inline below the instructions.

When should an agent still open the browser page?

Open it when a human wants to sense-check the output, review the chart, or keep exploring related tools after the calculation finishes.

Questions people usually ask

Who is body recomposition best for?

It tends to work best for beginners, people coming back after time off, and lifters who still have body fat to lose while training hard.

Why is the suggested pace usually slower than a hard cut?

Because recomposition works better when the plan protects training quality, recovery, and protein intake instead of chasing the fastest scale drop possible.

Does this guarantee muscle gain while losing fat?

No. It gives a practical plan and realistic targets, but results still depend on training quality, sleep, consistency, and starting point.

Should I update the plan often?

Yes. Recomp plans work best when you adjust them after a few weeks of real progress data rather than following one target forever.

Is this tool free and private to use?

Yes. AI Fit Hub tools are free, no-signup browser tools. Inputs stay in your browser unless you choose to share a URL.

Do these tools replace medical guidance?

No. These outputs are general fitness estimates — not medical advice.

Related Resources

Learn the decision before you act

Every link here is tied directly to Body Recomposition Planner. Use the explanation, formula, examples, and benchmarks to pressure-test the calculator output from first principles.

Browse all 15 resources

Guides · 1 Checklists · 2 Tips · 4 Mistakes · 4 Formulas · 1

How To Use

5 STEPS

How to Use Body Recomposition Planner

reveal your fitness potential with our Body Recomposition Planner. Learn how to strategically lose fat while building muscle with personalized calorie and macro targets.

Read

How To Use

5 STEPS

How to Use Calorie Deficit Calculator

reveal sustainable weight loss with the AI Fit Hub's Calorie Deficit Calculator. Accurately determine your daily calorie needs for effective fat loss without sacrificing health. Get started today!

Read

Guide

6 MIN READ

How to Do a Body Recomposition

Transform your physique by simultaneously building muscle and losing fat. Learn the science-backed strategies for optimal body recomposition, including precise macronutrient targets, effective training protocols, and essential recovery practices.

Read

Formula

4 VARIABLES

Body Recomposition Formula

Master the Body Recomposition Formula to simultaneously build muscle and lose fat. Learn to calculate your ideal calorie target by adjusting TDEE for optimal results.

Read

Examples

4 EXAMPLES

Body Recomposition Examples

Explore real-world body recomposition examples, from busy professionals to athletes and new parents, revealing how to build muscle and lose fat simultaneously for diverse lifestyles.

Read

Checklist

18 ITEMS

Body Recomposition Checklist

Master body recomposition with this actionable checklist. Simultaneously build muscle and burn fat through precise nutrition, effective training, and diligent progress tracking.

Read