fatscientist.com

5
5 Based on 52 reviews

Fat Scientist is a free online resource built for people using GLP-1 medications like tirzepatide (Mounjaro, Zepbound) and semaglutide (Ozempic, Wegovy). We specialize in tools and educational content for users of compounded versions of these medication...

Unclaimed Profile
Business profile not claimed
This business hasn’t yet claimed their profile on our platform and may be unaware it's listed. As a result, their rating might not fully reflect their customer service or responsiveness.

Average Rating

5

/
5

52 Reviews

5 Star
100%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

All Reviews

Filter Reviews

Review Time

TexasSMU
When I started Tirzepatide I went through a very expensive doc in the box who wrote scripts…that’s i

When I started Tirzepatide I went through a very expensive doc in the box who wrote scripts…that’s it. He didn’t explain things and would take days to reply to a question…I was on my own and knew nothing! Somehow I stumbled across Fat Scientist…had I not, I would have given up before I started. Fat Scientist quickly became my professor, doctor, nurse, pharmacist and supportive friend all rolled into one. Thank you, Fat Scientist, you have been more than life changing!

5
Date of experience: Feb 23, 2026
Rabyn Freer
I use this EVERY week before I do my shot to double-check I'm drawing the right dose. It makes it so

I use this EVERY week before I do my shot to double-check I'm drawing the right dose. It makes it so easy as I have titrated up AND used different pharmacies with different concentrations. Thank you so much for this amazing resource!

5
Date of experience: Feb 22, 2026
Nancy Regan
Best tool to make sure my injections are done with the correct dosage since some pharmacies have dif

Best tool to make sure my injections are done with the correct dosage since some pharmacies have different strengths. It also is great to have the split dose calculator too! Love the fat scientist!

5
Date of experience: Feb 22, 2026
Brad Madiuk
I’ve used Fat Scientist for my doses every week. I’m an RN and am fully capable of doing it on my ow

I’ve used Fat Scientist for my doses every week. I’m an RN and am fully capable of doing it on my own, but I use it anyway to confirm it before injecting medication into my body. It helps me feel safe knowing that I have such a sturdy confirmation tool.

5
Date of experience: Feb 22, 2026
Ron Cummings
Site is a collection of dose calculators useful to GLP1/GLP-GIP users. Site is intuitive with sever

Site is a collection of dose calculators useful to GLP1/GLP-GIP users.

Site is intuitive with several options that fit with many, if not most dosing regimes. Calculations made with the site are accurate (the math maths).

Essential for the newer user who may be struggling with changing suppliers who provide different medication strengths. Allows users to make sure that the provider instructions are correct.

5
Date of experience: Feb 22, 2026
May Voirrey
The Fat Scientist site is accurate, easy to use, and a literal lifesaver. I'm terrible at math, and

The Fat Scientist site is accurate, easy to use, and a literal lifesaver. I'm terrible at math, and this calculator has twice saved me from making terrible dosing mistakes. I recommend it to anyone I know who is using GLP-1 medication. It feels like a necessity.

5
Date of experience: Feb 22, 2026
Alan Horgan
A great resource!

Up to date, scientifically rigorous and easy to use. Extremely helpful!

5
Date of experience: Feb 22, 2026
May Voirrey
The Fat Scientist site is accurate

The Fat Scientist site is accurate, easy to use, and a literal lifesaver. I'm terrible at math, and this calculator has twice saved me from making terrible dosing mistakes. I recommend it to anyone I know who is using GLP-1 medication. It feels like a necessity.

5
Date of experience: Feb 22, 2026
Karin Gearhard
Easy to use

Easy to use, accurate and so helpful every single time, which is every time! Highly recommend.

5
Date of experience: Feb 22, 2026
John Batchelor
Wonderful

I use it every week to help with dosing. It is wonderful!!!!!

5
Date of experience: Feb 22, 2026

Is this your business?

Claim your business profile now and gain access to all features and respond to customer reviews.

Business Details

  • Fat Scientist is a free online resource built for people using GLP-1 medications like tirzepatide (Mounjaro, Zepbound) and semaglutide (Ozempic,
    Wegovy). We specialize in tools and educational content for users of compounded versions of these medications, which come in multi-dose vials and
    require precise dosage calculations.

    Our suite of calculators helps users convert prescribed milligram doses into exact syringe units based on their specific vial concentration,
    calculate split doses for improved tolerability, estimate medication costs, and plan their treatment timelines. Every calculator is free, requires
    no account, and works on any device.

    We built Fat Scientist because compounded GLP-1 medications present a unique challenge. Unlike brand-name auto-injectors with pre-measured doses,
    compounded vials require users to do math that directly impacts their safety. A wrong calculation means injecting too much or too little
    medication. We believe nobody should have to guess when it comes to their health, and the tools to get it right should be accessible to everyone.

    Beyond calculators, Fat Scientist provides guides on topics like reading vial labels, understanding concentration values, proper injection
    technique, and navigating the differences between brand-name and compounded medications. Our FAQ library addresses the most common questions we see
    in GLP-1 communities, written in plain language without medical jargon.

    Fat Scientist is operated by Productist LLC. We are not a pharmacy, we do not sell medications, and we are not a substitute for medical advice. Our
    mission is purely informational — giving GLP-1 users the tools and knowledge to use their medications safely and confidently. We are funded by
    voluntary donations from our users, not advertising or affiliate deals, so our recommendations are never influenced by commercial interests.

    Whether you are just starting your GLP-1 journey or adjusting an existing regimen, Fat Scientist is here to help you get the numbers right.See more

  • language https://fatscientist.com

We use cookies to personalize your experience. By continuing to visit this website you agree to our use of cookies

More