So helpful!
Reply from Fat Scientist2026-08-03
Thanks so much, Laura -- so glad to be of help!
About Fat Scientist
Data updated- Website
- fatscientist.com
- Category
- Public & Local Services
- Location
- United States
- Status
- Unclaimed
- Last 12 months
- 62 reviews
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Is Fat Scientist legit?
Fat Scientist (fatscientist.com) has a 5.0 out of 5 rating on OK.one, based on 62 user reviews collected here. It is listed under Public & Local Services and its reputation is excellent. Praise is nearly unanimous, with 100% rating it 4 stars or higher. Last updated 2026-08-10.
What people say
I love fat scientist
I love fat scientist. I've been using it for a couple years now for my compound pharmacy Tirzepatide injections. It gives me peace of mind that I'm dosing myself correctly.
Reply from Fat Scientist2026-08-03
Thank you Amber!
Great tool helped me.
Reply from Fat Scientist2026-08-03
Love to hear it!
Excellent always on point
Excellent always on point. Thanks so much!
Reply from Fat Scientist2026-08-03
Thank *you*!
Super easy to use and provides a lot of…
Super easy to use and provides a lot of supplemental info
Reply from Fat Scientist2026-08-03
Very glad to hear it!
GLP-1 must have!
Fat Scientist is a brain saver, does all the work for you. Very reliable! I will continue to spread the word with the GLP-1 Community
Reply from Fat Scientist2026-08-03
Haha, the shotsy app is good, but we've got our own app coming soon...with a lifetime option! :D
This app has been a tremendous help.
Reply from Fat Scientist2026-08-03
So happy to hear it, thanks Quin.
This is an exceedingly helpful website…
This is an exceedingly helpful website for understanding dosing when using tirzepatide vials. thanks!
Reply from Fat Scientist2026-08-03
Thank you Laura, so glad to hear it!
Use this tool and recommend this tool…
Use this tool and recommend this tool ALL the time. Gives you what you need in extremely user friendly format.
A Life Saver for GLP users!!
I literally use this app every day to plan and double/triple check my tirzepatide doses! Love all that it offers and that it does all my "mathing" for me! It has helped me tremendously on my weight loss journey! Thank you!!
Very helpful tools!
This is an amazing resource
This is an amazing resource. Thank you for helping us be empowered and accurate.
So happy I found FatScientist!
This is such a helpful resource for anyone starting out on the GLP-1 journey, and it's just as much a necessary tool for more seasoned patients too! I think I've double checked myself w/ FatScientist everytime I've needed to reconstitute a vial of tirz. and I imagine I'll continue to do so. The calculator is easy to use, & the site has easy to follow recommendations and answers to FAQs. I recently discovered the new link for info on Retatrutide, and look forward to using that as well if I end up switching over to that newer GLP-1. Thanks for this easy to use site!
Reply from Fat Scientist2026-08-03
Megan, you rock! Thanks so much for the kind words, it means a lot.
I would have never been confident in my…
I would have never been confident in my choices without this calculator.
Reply from Fat Scientist2026-08-03
That's one of our main goals -- helping people feel confident and comfortable
Awesome tool
I am very careful about making sure I am taking the right dose I triple check before I draw up my dose, fat scientist has given me peace of mind. It's easy to use and understand and I love having all the calculators and information in one place. I highly recommend. Thank you!
Reply from Fat Scientist2026-08-03
Thanks DeeDee, glad to help!
If you haven’t been using this, you should be.
If you haven’t been using this, you should be. I love a no nonsense site that teaches me things. So useful, easy to use for different use cases, and educational. Really appreciate having this as an aid during my weight loss journey!!
Reply from Fat Scientist2026-04-18
Thanks Winnie, appreciate the kind words.
Use info!
Offers several ways to understand reconstituting peptides in powder form.
The rating is really a 10+
Reply from Fat Scientist2026-04-06
You, sir, deserve 10 stars! Thank you for your support.
Amazing app
Amazing app. So helpful with the confusing dose info on the Tirz bottle. Love the split dose function. Perfect. Thank you so much
Reply from Fat Scientist2026-03-28
Thanks Deanne! So glad Fat Scientist could help clear up the confusing dose info -- and really pleased the split dose function has been useful for you!
I love this site
I love this site. Varying units can give you the mg and vice versa. Simple to use once set up for your product. I keep coming back to this site when I vary dosages. Thank you Fat Scientist for providing this.
Reply from Fat Scientist2026-03-28
Thanks Bonbon! That's exactly what we're going for -- simplicity and accuracy, however you need to slice it. So glad to be a reliable part of your routine!