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10 metrics · Every formula peer-reviewed

Weight Loss,
Evidence-Based

Your complete daily protocol — calories, macros, hydration, steps, sleep, and training — each backed by peer-reviewed research.

Quick:

The Research

Every formula is derived from peer-reviewed studies. Tap any citation to read the original paper.

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Calorie Target

Mifflin-St Jeor — most accurate REE equation (82% within ±10% of measured). TDEE minus 500–750 kcal/day per AHA/ACC/TOS guidelines.

REE = 10W + 6.25H − 5A + S
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Protein

1.6–2.2 g/kg/day — meta-analytic breakpoint at 1.62 g/kg. During severe deficit, up to 2.3–3.1 g/kg lean mass may be beneficial.

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Dietary Fat

15–25% of total calories (≥0.5 g/kg/day minimum). Below this, hormonal disruption (testosterone, menstrual function) occurs. Fat is essential for hormone synthesis and fat-soluble vitamin absorption.

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Fiber

14g per 1,000 kcal (or 25–30g/day). Fiber increases satiety, improves gut microbiome diversity, and reduces all-cause mortality by 15–30% at intakes of 25–29g/day.

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Hydration

35–40 mL/kg/day — clinical fluid guideline. 500mL before meals increases weight loss by 44%.

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Steps

8–10K/day (<60yr) · 6–8K (≥60yr) — mortality plateau. For active weight loss, ≥10K with ≥3,500 brisk steps is optimal.

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Sleep

7–9 hours/night — sleep extension from 6.5h to 8.5h reduced caloric intake by ~270 kcal/day without any dietary intervention. Short sleep (<5.5h) causes 55% more lean mass loss during deficit.

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Resistance Training

2–4 sessions/week, hitting each muscle group 2×/week. Higher frequency and ≥10 sets/muscle/week maximizes hypertrophy and muscle retention during deficit.

How It Works

01

Enter Your Stats

Weight, height, age, gender, and activity level.

02

Get 10 Evidence-Based Targets

BMI, calories, protein, fat, fiber, water, steps, sleep, training, and safe weight loss rate.

03

Track & Recalculate

As your weight drops, recalculate. All targets adapt.