Fit Health Regimen

About

Fit Health Regimen is your go-to platform for science-backed fitness, nutrition, and wellness tools. We help you achieve your health goals through personalized calculators, evidence-based programs, and practical guides. Whether you're tracking calories, planning workouts, or optimizing your recovery, our tools are designed to simplify your journey. No fluff — just real, actionable support for sustainable results. Start building your best self — one healthy habit at a time.

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Tastemaker

Gone streaking

Maker History

Caffeine Half-Life CalculatorTrack how long caffeine stays in your body & optimize sleep
Jul 2025
RPE Calculator RPE Calculator for Smarter, Safer Lifting
Jul 2025

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Joined Product HuntJuly 5th, 2025

Forums

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8mo ago

Caffeine Half-Life Calculator - Track how long caffeine stays in your body & optimize sleep

Estimate how long caffeine stays in your system with our Caffeine Half-Life Calculator. Track energy levels, sleep disruption, and dose timing using science-based metabolism models tailored to your sensitivity and lifestyle.

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8mo ago

RPE Calculator - RPE Calculator for Smarter, Safer Lifting

Estimate training intensity and load with our RPE Calculator. Use the Rate of Perceived Exertion to plan personalized strength training, adjust effort in real time, and make smarter progress with every workout. Ideal for lifters and coaches alike.