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... Ver mais
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Veja o que dizem as avaliações
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 a... Ver mais
A empresa respondeu
When I switched to compounded meds, I didn't understand the difference between volume, concentration, dose or about how to figure out my dose. Some knowledgable users directed me toward Fat Scientist... Ver mais
A empresa respondeu
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 noth... Ver mais
A empresa respondeu
Detalhes da empresa
Escrito pela empresa
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.
Informações de contato
Estados Unidos
- fatscientist.com
Helps me never mess up my dose
Helps me never mess up my dose! Been using it since I started my glp-1 journey and it's been a godsend!
1 de janeiro de 2026
Avaliação não solicitada
Resposta de Fat Scientist
So glad to hear it Angelique! Good to have you in the Fat Scientist family.
I have been using Fat Scientist for over 6 months…
I have been using Fat Scientist for over six months and absolutely love it. I trust and rely on it for my weekly GLP always accurate dosage!
22 de fevereiro de 2026
Avaliação não solicitada
Resposta de Fat Scientist
Thanks Maria! Appreciate the kind words and am so pleased Fat Scientist has been a useful tool for you all this time.
I am so grateful for this resource
I am so grateful for this resource! When I started my tirz journey, I was doing a lot of math in my notebook. About a year ago, a friend recommend I try Fat Scientist to confirm my correct unit dosages with their dosage calculator. I have been using it every week since! I can't recommend them enough!
20 de março de 2025
Avaliação não solicitada
Resposta de Fat Scientist
Thanks Ali, and thanks Ali's friend! 🥰 So glad that Fat Scientist has been able to accompany you on your journey.
Best Tool Ever!
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!
22 de março de 2025
Avaliação não solicitada
Resposta de Fat Scientist
Thanks for the love and kind words, Nancy! So glad the split dose calculator has been useful for you.
Indispensable
I’d probably be in bad shape with my dosing if it wasn’t for this app. I use it every time to check my dosage before I do the jab.
9 de dezembro de 2025
Avaliação não solicitada
Resposta de Fat Scientist
Thanks so much for the kind words. Glad we could help!
Perfect for the Math-Challenged
Calculator was very easy to use - I've continued to check on Fat Scientist every time I increase my dose or when I have to split a dose between vials. Practically dummy proof.
4 de outubro de 2025
Avaliação não solicitada
Resposta de Fat Scientist
Thanks Kate! "Dummy proof" is exactly what we're going for — glad Fat Scientist has been a reliable companion every step of the way, including those tricky split-dose situations!
Very simple and easy to use!
Very simple and easy to use!
20 de fevereiro de 2026
Avaliação não solicitada
Resposta de Fat Scientist
Thanks Morgan! We aim for clarity, simplicity, accuracy, and ease-of-use. So glad to be of help!
Fat Scientist is so informative
Fat Scientist is so informative. It’s easy to use, and been a lifesaver when changing dosages. Love this site.
12 de agosto de 2025
Avaliação não solicitada
Resposta de Fat Scientist
Thanks CJ! Really glad Fat Scientist has been a helpful companion, especially when navigating dose changes.
I use fat scientist weekly and rely on…
I use fat scientist weekly and rely on it heavily! Absolutely no complaints and would recommend fat scientist to any friends and family.
12 de dezembro de 2025
Avaliação não solicitada
Resposta de Fat Scientist
Thanks Zack! Really appreciate you spreading the word to friends and family — that means a lot to us.
The dose calculator is a game changer…
The dose calculator is a game changer when figuring out/checking my tirzepatide dose. It has given me peace of mind and saved me so much time and math.
3 de janeiro de 2026
Avaliação não solicitada
Resposta de Fat Scientist
Thanks Lauren! Peace of mind on shot day is exactly what we're going for. So glad Fat Scientist has been able to save you the mental math!
So helpful!
This site is the best! It’s so nice to double check your dosage when titrating up or down or just to have a comfort level that you’re doing it correctly.
13 de novembro de 2025
Avaliação não solicitada
Resposta de Fat Scientist
Thanks Jamie! That peace of mind when titrating — knowing you've got the right number — is exactly what Fat Scientist is here for.
Simple and Easy!
Simple, easy-to-use calculator that has evolved with feedback from users and is now a great all-around resource for both newbies and experienced GLP users. Thank you, Ted!!
22 de fevereiro de 2026
Avaliação não solicitada
Resposta de Fat Scientist
Thank you! Love hearing that it works for both newcomers and veterans alike — and yes, user feedback has genuinely shaped a lot of what the site has become.
Awesome website to help with all kinds…
Awesome website to help with all kinds of GLP dosing. My go to place to figure out anything related to dose management.
6 de setembro de 2025
Avaliação não solicitada
Resposta de Fat Scientist
Thanks Lawrence! Really glad Fat Scientist has become your go-to for dose management — that's exactly the role we're hoping to fill.
Excellent medication safety check!
Very helpful when i need to adjust my medication dose and double check my calculations. I never skip this as a safety check. Its so quick and easy to use.
17 de janeiro de 2026
Avaliação não solicitada
Resposta de Fat Scientist
Thanks Kim! Really glad Fat Scientist has become a reliable part of your routine.
Still using it a year later
I've been on compounded Tirzepatide for over a year and still double check my dose every week with Fat Scientist. It's a wonderful resource for learning how to read and understand your vials and dosage.
22 de fevereiro de 2026
Avaliação não solicitada
Resposta de Fat Scientist
Thanks Addie! So glad Fat Scientist has become a reliable part of your routine.
I saw this app discussed in my tirz sub…
I saw this app discussed in my tirz sub and used it for the first time this morning. I received new vials yesterday and wanted to dose at a smaller dose for my first dose of Tirz without B6. Highly recommend
22 de fevereiro de 2026
Avaliação não solicitada
Resposta de Fat Scientist
Thanks Jacki! Really glad the tirz community led you here — welcome, and hope Fat Scientist continues to be a useful companion on your journey!
If you are on a GLP1 weight loss…A must visit!
If you are on a GLP1 weight loss journey, this Fat Scientist is an invaluable resource!
22 de fevereiro de 2026
Avaliação não solicitada
Resposta de Fat Scientist
Thanks Christopher! Really glad Fat Scientist has been a valuable resource on your journey.
Helpful trustworthy info
3 de fevereiro de 2026
Avaliação não solicitada
Resposta de Fat Scientist
Thank you Michelle! 🙏
Excellent website to calculate dosage…
Excellent website to calculate dosage based on mg needed. Also love the reverse dosage calculator that I use when splitting doses between vials (before the split dosage calculator was available).
I’ve been using this site for over a year and have not had any issues.
28 de fevereiro de 2025
Avaliação não solicitada
Resposta de Fat Scientist
Thanks Lisa! So glad the reverse dose calculator has been useful, especially for those tricky between-vial situations. Really appreciate you using Fat Scientist for so long!
Easy to use, good interface
Easy to use, works well on laptop of mobile, takes the guessing out of dosing
22 de fevereiro de 2026
Avaliação não solicitada
Resposta de Fat Scientist
Thanks Mark! Glad it works well across devices — and yes, taking the guesswork out of dosing is exactly the point.
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