Skip to content
PepFitCoach™

The personalized

Peptide, Fitness &
Performance Coach

Coaching to use your GLP-1 or peptides safely, built into your training, nutrition and labs, and matched to your age, your goals and your doctor.

Get Your Plan See How It Works
  • Evidence-based guidance
  • Personalized to you
  • Track & optimize

Your PepFit Plan

  • GLP-1 & peptide safety
  • Workout plan
  • Nutrition & vitamins
  • Labs & biomarker tracking

Exercise demos

Not sure what an exercise looks like?

Skip the YouTube searching. 89 animated exercises show you exactly how each move is done, with the right equipment, simple explanations, form tips and the mistakes to avoid. Home or gym.

  • ✓Every move animated
  • ✓Tap to zoom in
  • ✓Home or gym filter
  • ✓Beginner to advanced
Watch the exercise demos

How PepFit Coach Works

A simple process to build your personal plan, step by step.

  1. 1. Get your labs

    Use the doctor letter to get your bloodwork and key health numbers.

  2. 2. Tell us about you

    Age, goals, home or gym, injuries, conditions and any GLP-1.

  3. 3. Get your plan

    Workouts with animations, Zone 2, nutrition, vitamins and safety notes.

  4. 4. Track & adjust

    Retest every 3 months and refine the plan with your doctor and me.

Why the scale gets stuck

The 3 Stressors → Inflammation → Metabolic Decline

Different triggers, same body response. Constant stress keeps cortisol high, which drives inflammation, insulin resistance and fat storage, however hard you diet. Fix the stressors and your body can start losing again.

The chain reaction

  1. 1

    Brain senses stress

    Your stress system (the HPA axis) switches on.

  2. 2

    Cortisol rises

    Your adrenal glands release the main stress hormone.

  3. 3

    Inflammation turns on

    Inflammation signals like CRP climb.

  4. 4

    Insulin resistance

    Cells stop listening to insulin, so more is stored as fat.

  5. 5

    Mitochondria struggle

    Your cells make less energy; you feel tired and burn less.

The result: a metabolic cascade

  • More belly fat (visceral fat)
  • Fatty liver (NAFLD)
  • Less energy, more fatigue
  • Higher insulin and blood sugar
  • Metabolic syndrome: blood sugar, blood pressure, cholesterol and waist all up

It only works with the basics

Medicines and supplements can help, but lasting results come from the non-negotiables. A GLP-1 or peptide is a tool, not the plan.

When to expect results

  1. Weeks 1–2Better energy and appetite control as habits settle.
  2. Weeks 3–4Better recovery, more consistent workouts, first waist changes.
  3. Weeks 5–8Better insulin sensitivity and noticeable fat loss.
  4. Weeks 8–12+Meaningful change: less visceral fat and better labs.

Key takeaway: the 3 stressors can drive a harmful cycle of cortisol, inflammation and insulin resistance. With a disciplined diet, training, sleep and consistency, and your doctor on board, you can break the cycle and rebuild a healthier metabolism.

Read the full guideCheck your insulin resistance score
Infographic: the 3 stressors (physical, chemical, emotional) raise cortisol and inflammation, leading to insulin resistance, mitochondrial damage, fatty liver and metabolic syndrome, and how to break the cycle.
Tap the image to view it full size.Download infographic

Peptides shown in the infographic (MOTS-c, SS-31, KPV, BPC-157, TB-500, GHK-Cu) are investigational and not approved for these uses. See the evidence for each in the Peptide Index.

Built around you

Your workout, made for your age and ability

  • Your age18 to 80+. Recovery, volume and balance work change as you get older, so your plan does too.
  • Your bodyShoulder, knee or back issues? Exercises are swapped for joint-friendly versions automatically.
  • Home or gymBands and dumbbells in your living room, or full machines at the gym, or both.
Build my workout
Medicine can open the door. Your effort is what walks you through it.
PepFit Coach

Getting help isn't cheating

If you're insulin resistant, your body holds on to fat and fights you on every diet, however hard you try. That isn't a lack of willpower; it's biology. For some people a medicine like a GLP-1 is what finally lets the hard work show up on the scale.

  • Work with your doctor. Tell them everything you're using or considering, peptides included, so they can keep you safe.
  • Medicine isn't the plan, it's the help. Once insulin resistance stops blocking you, your diet and resistance training finally respond to your effort.
  • Keep your muscle. Lifting 3 days a week and eating enough protein is what makes the weight you lose fat, not muscle.
Am I insulin resistant? →How to talk to your doctor →Low testosterone? TRT vs enclomiphene →
Some bodies need medicine firstThyroid, low testosterone, insulin resistance: why diet and exercise alone sometimes can't work. Tap to see the infographic.

When hormones or metabolism aren't working, effort alone often doesn't show results. An underactive thyroid, low testosterone or insulin resistance can each make losing fat and building muscle very hard.

Treating the real problem, when your doctor confirms it with labs, can restart the system so your diet and training finally work. Medicine is a reset tool, not a cheat code.

Every one of these needs proper testing and a prescription from your doctor. Don't start, stop or change hormone or metabolic medicines on your own.

Download infographic
Infographic: some bodies need medicine first. Thyroid issues, low testosterone, and metabolic syndrome with insulin resistance, how the right medicine lets diet and exercise work, and real-world examples.

A Complete Coaching Platform

Everything you need to plan, train and stay safe, in one place.

Created by Said Kolenovic · ISSA-certified trainer

About me, Said Kolenovic

Too many people start a GLP-1 or peptides and get left on their own: losing muscle, fighting side effects, or hitting a plateau nobody explains.

As an ISSA-certified trainer, I turn the research into a plan you can actually follow: strength training for your age, Zone 2 cardio, protein and recovery, and labs you review with your doctor.

You, your doctor and me, on the same page. That's how this works.

  • Built by a certified trainer
  • Works alongside your doctor
  • Safety first, no guesswork doses
  • Ages 18 to 80+, home or gym
Work with me 1-on-1

ISSA certification

Certificate coming soon

ISSA-certified trainer

Free to use. Better with a coach.

Free on this site

$0

  • GLP-1 and peptide safety guides
  • Training guides for every age, with exercise animations
  • Zone 2 cardio, vitamin and bloodwork guides
  • The plan builder and printable PDF plans
Start free

1-on-1 coaching with me

Pricing on application

  • A trainer who builds your plan around you: your body, age, injuries and equipment
  • How to fit your GLP-1 or peptides into your diet and training, side effects included
  • Weekly check-ins, form reviews and plan changes
  • Bloodwork reviewed with you every 3 months, alongside your doctor
  • Direct messages when you're stuck, plateaued or unsure
  • Help preparing for conversations with your doctor or prescriber
Apply for coaching

Science-Backed Coaching

PeptidesFitnessMetabolic HealthLongevity

Get Started Today

Or put it on your phone: get the free PepFit Coach app →

Free newsletter

Research highlights, in your inbox

A short, referenced digest of new peptide research. No hype, no product promotion. Unsubscribe anytime.

We only store your email address. See our privacy policy.

Scientific disclaimer

PepFit Coach provides educational and informational content only. It is not medical advice and is not a substitute for consultation with a qualified healthcare professional. Nothing on this site recommends any substance for personal use.

Many compounds discussed are investigational and not approved by any regulatory authority. Animal and laboratory findings do not establish safety or effectiveness in humans, and a registered clinical trial does not prove efficacy. Read the full disclaimer.