Dr. Hatem El-Nagar
@hatemelnagar.bsky.social
Certified Food Safety Consultant | Writer on Medium.
I make food safer and science simpler—for your health, your plate, and the planet
I make food safer and science simpler—for your health, your plate, and the planet
A lot of people asked why food poisoning doesn’t affect everyone who eats the same meal.
The answer surprised even seasoned professionals.
Here’s the piece that explains it:
medium.com/the-quantast...
#science #food #health #foodsafety #publichealth #environment #sustainability #society
The answer surprised even seasoned professionals.
Here’s the piece that explains it:
medium.com/the-quantast...
#science #food #health #foodsafety #publichealth #environment #sustainability #society
Why Only One Person Got Sick
Food poisoning isn’t always about what you ate, but how much ended up on your plate
medium.com
January 3, 2026 at 7:08 PM
A lot of people asked why food poisoning doesn’t affect everyone who eats the same meal.
The answer surprised even seasoned professionals.
Here’s the piece that explains it:
medium.com/the-quantast...
#science #food #health #foodsafety #publichealth #environment #sustainability #society
The answer surprised even seasoned professionals.
Here’s the piece that explains it:
medium.com/the-quantast...
#science #food #health #foodsafety #publichealth #environment #sustainability #society
Thanks a lot for your continuous support and your kind words. Happy New Year 🎈🎊❤️
December 27, 2025 at 12:00 AM
Thanks a lot for your continuous support and your kind words. Happy New Year 🎈🎊❤️
“Writing isn’t about sounding smart.
It’s about making meaning.”
What a year on Medium taught me about turning facts into stories:
medium.com/@hatem.elnag...
It’s about making meaning.”
What a year on Medium taught me about turning facts into stories:
medium.com/@hatem.elnag...
I Didn’t Join Medium To Share Facts. I Joined To Learn How To Cook Them
What a year on Medium taught me about turning facts into stories
medium.com
December 26, 2025 at 11:12 AM
“Writing isn’t about sounding smart.
It’s about making meaning.”
What a year on Medium taught me about turning facts into stories:
medium.com/@hatem.elnag...
It’s about making meaning.”
What a year on Medium taught me about turning facts into stories:
medium.com/@hatem.elnag...
Reposted by Dr. Hatem El-Nagar
Holiday meals bring together loved ones and wonderful dishes and… lots of leftovers. After #cooking our #Thanksgiving dinners, it's common to leave the #food out for hours so everyone can come back for more through the evening. Big mistake.
How Long Can Cooked Food Sit Out?
Whether you cook for a large gathering or just yourself, you’ll want to know what happens after just two hours, and especially after four…
medium.com
November 25, 2025 at 5:05 PM
Holiday meals bring together loved ones and wonderful dishes and… lots of leftovers. After #cooking our #Thanksgiving dinners, it's common to leave the #food out for hours so everyone can come back for more through the evening. Big mistake.
The most dangerous ingredient in your kitchen isn’t raw chicken.
It’s time.
I broke down the 2–4 hour rule in a story that might save a dinner or a life.
medium.com/wise-well/ho...
#foodsafety #food #science #health #publichealth #sustainability #kitchen #cooking #environment
It’s time.
I broke down the 2–4 hour rule in a story that might save a dinner or a life.
medium.com/wise-well/ho...
#foodsafety #food #science #health #publichealth #sustainability #kitchen #cooking #environment
How Long Can Cooked Food Sit Out?
Whether you cook for a large gathering or just yourself, you’ll want to know what happens after just two hours, and especially after four…
medium.com
November 25, 2025 at 8:28 AM
The most dangerous ingredient in your kitchen isn’t raw chicken.
It’s time.
I broke down the 2–4 hour rule in a story that might save a dinner or a life.
medium.com/wise-well/ho...
#foodsafety #food #science #health #publichealth #sustainability #kitchen #cooking #environment
It’s time.
I broke down the 2–4 hour rule in a story that might save a dinner or a life.
medium.com/wise-well/ho...
#foodsafety #food #science #health #publichealth #sustainability #kitchen #cooking #environment
Thanks a lot for reading and for your kind words. I wish this article reaches many readers to help to raise the awareness.
November 19, 2025 at 4:45 AM
Thanks a lot for reading and for your kind words. I wish this article reaches many readers to help to raise the awareness.
What Science Tells Us About How Your Pet’s Dinner Affects Your Family’s Health
medium.com/the-quantast...
#food #science #pets #foodsafety #health #publichealth #culture
medium.com/the-quantast...
#food #science #pets #foodsafety #health #publichealth #culture
November 18, 2025 at 5:23 PM
What Science Tells Us About How Your Pet’s Dinner Affects Your Family’s Health
medium.com/the-quantast...
#food #science #pets #foodsafety #health #publichealth #culture
medium.com/the-quantast...
#food #science #pets #foodsafety #health #publichealth #culture
🐶🔬 Your pet’s food can carry the same bacteria behind hospital outbreaks.
New research shows how microbes move from the bowl to your hands, floors, and kids — and what actually keeps families safe.
👉 Read the full story:
medium.com/the-quantast...
#food #foodsafety #science #health #pets
New research shows how microbes move from the bowl to your hands, floors, and kids — and what actually keeps families safe.
👉 Read the full story:
medium.com/the-quantast...
#food #foodsafety #science #health #pets
What Science Tells Us About How Your Pet’s Dinner Affects Your Family’s Health
Recent outbreaks, recalls, and fresh research show just how easily microbes move from the pet bowl into the human home—and what science…
medium.com
November 16, 2025 at 3:17 PM
🐶🔬 Your pet’s food can carry the same bacteria behind hospital outbreaks.
New research shows how microbes move from the bowl to your hands, floors, and kids — and what actually keeps families safe.
👉 Read the full story:
medium.com/the-quantast...
#food #foodsafety #science #health #pets
New research shows how microbes move from the bowl to your hands, floors, and kids — and what actually keeps families safe.
👉 Read the full story:
medium.com/the-quantast...
#food #foodsafety #science #health #pets
Stop throwing good food in the trash.
Expiration dates are mostly made up — and they’re costing us billions.
Here’s the truth food companies don’t want you to know:
medium.com/the-environm...
#foodsafety #food #sustainability #health #science #environment #publichealth #culture
Expiration dates are mostly made up — and they’re costing us billions.
Here’s the truth food companies don’t want you to know:
medium.com/the-environm...
#foodsafety #food #sustainability #health #science #environment #publichealth #culture
Stop Wasting Good Food: What Expiration Dates Don’t Tell You
Uncovering the truth behind food labels to save money and reduce waste
medium.com
November 15, 2025 at 6:41 PM
Stop throwing good food in the trash.
Expiration dates are mostly made up — and they’re costing us billions.
Here’s the truth food companies don’t want you to know:
medium.com/the-environm...
#foodsafety #food #sustainability #health #science #environment #publichealth #culture
Expiration dates are mostly made up — and they’re costing us billions.
Here’s the truth food companies don’t want you to know:
medium.com/the-environm...
#foodsafety #food #sustainability #health #science #environment #publichealth #culture
@cfstruefood.bsky.social
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
The Astonishing Truth About the Salmonella Outbreak Hiding in Your Tomatoes
And how to prevent Salmonella infection and stay safe when eating fresh produce
medium.com
November 8, 2025 at 3:25 PM
@cfstruefood.bsky.social
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
@efsa.europa.eu
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
The Astonishing Truth About the Salmonella Outbreak Hiding in Your Tomatoes
And how to prevent Salmonella infection and stay safe when eating fresh produce
medium.com
November 8, 2025 at 3:24 PM
@efsa.europa.eu
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
@primpker.bsky.social
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
The Astonishing Truth About the Salmonella Outbreak Hiding in Your Tomatoes
And how to prevent Salmonella infection and stay safe when eating fresh produce
medium.com
November 8, 2025 at 3:24 PM
@primpker.bsky.social
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
@fda.gov
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
The Astonishing Truth About the Salmonella Outbreak Hiding in Your Tomatoes
And how to prevent Salmonella infection and stay safe when eating fresh produce
medium.com
November 8, 2025 at 3:23 PM
@fda.gov
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
@fao.org
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
The Astonishing Truth About the Salmonella Outbreak Hiding in Your Tomatoes
And how to prevent Salmonella infection and stay safe when eating fresh produce
medium.com
November 8, 2025 at 3:23 PM
@fao.org
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
The Astonishing Truth About the Salmonella Outbreak Hiding in Your Tomatoes
And how to prevent Salmonella infection and stay safe when eating fresh produce
medium.com
November 8, 2025 at 3:19 PM
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
Exactly! Yes. 14 years is astonishing, and that’s what makes this case so unique. Because Salmonella Strathcona is such a rare strain, it evaded detection for years until genomic surveillance finally connected the dots across multiple countries.
November 8, 2025 at 3:17 PM
Exactly! Yes. 14 years is astonishing, and that’s what makes this case so unique. Because Salmonella Strathcona is such a rare strain, it evaded detection for years until genomic surveillance finally connected the dots across multiple countries.
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
#foodsafety #food #science
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
#foodsafety #food #science
The Astonishing Truth About the Salmonella Outbreak Hiding in Your Tomatoes
And how to prevent Salmonella infection and stay safe when eating fresh produce
medium.com
November 8, 2025 at 8:11 AM
You’ve probably worried about raw chicken — but have you ever thought about your tomatoes? 🍅
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
#foodsafety #food #science
Scientists just traced a 14-year Salmonella outbreak to small tomatoes from Sicily. I unpack how it happened and what you can do to stay safe at home.
medium.com/illumination...
#foodsafety #food #science
Thanks so much, Rob! I really appreciate all your thoughtful edits and guidance. This story became stronger because of your insight.
October 28, 2025 at 8:43 AM
Thanks so much, Rob! I really appreciate all your thoughtful edits and guidance. This story became stronger because of your insight.
Reposted by Dr. Hatem El-Nagar
Raw cookie dough, raw shellfish, raw milk, undercooked beef or eggs. Those are just a few of items on a long list of foods that food safety experts and health professionals would not eat, period, based on this writer's interview with several of them.
medium.com/wise-well/fo... #food #health
medium.com/wise-well/fo... #food #health
Foods That Food Safety Experts Refuse to Eat
I spoke with scientists and public health professionals from around the world to reveal the hidden risks in everyday foods
medium.com
October 27, 2025 at 9:52 PM
Raw cookie dough, raw shellfish, raw milk, undercooked beef or eggs. Those are just a few of items on a long list of foods that food safety experts and health professionals would not eat, period, based on this writer's interview with several of them.
medium.com/wise-well/fo... #food #health
medium.com/wise-well/fo... #food #health
Ever wonder what foods food safety experts never touch?
I spoke with scientists, consultants, and public health pros from around the world, and their answers might surprise you.
medium.com/wise-well/fo...
I spoke with scientists, consultants, and public health pros from around the world, and their answers might surprise you.
medium.com/wise-well/fo...
Foods That Food Safety Experts Refuse to Eat
I spoke with scientists and public health professionals from around the world to reveal the hidden risks in everyday foods
medium.com
October 27, 2025 at 2:20 PM
Ever wonder what foods food safety experts never touch?
I spoke with scientists, consultants, and public health pros from around the world, and their answers might surprise you.
medium.com/wise-well/fo...
I spoke with scientists, consultants, and public health pros from around the world, and their answers might surprise you.
medium.com/wise-well/fo...
Thank you so much! Yes, the researchers did an incredible job uncovering what’s been hiding in plain sight. I wanted to help translate their findings for readers, because this silent crisis truly deserves more public attention.
October 27, 2025 at 3:32 AM
Thank you so much! Yes, the researchers did an incredible job uncovering what’s been hiding in plain sight. I wanted to help translate their findings for readers, because this silent crisis truly deserves more public attention.
My grandmother’s infection wasn’t random. It started with dinner.
A new study shows nearly 1 in 5 urinary infections may begin with contaminated meat.
medium.com/illumination...
#foodsafety #food #science #health #medicine
A new study shows nearly 1 in 5 urinary infections may begin with contaminated meat.
medium.com/illumination...
#foodsafety #food #science #health #medicine
The Hidden Foodborne Crisis That Made My Grandmother Sick
A new study reveals that nearly one in five urinary infections may begin with contaminated meat, exposing a silent threat hiding on our…
medium.com
October 25, 2025 at 8:22 AM
My grandmother’s infection wasn’t random. It started with dinner.
A new study shows nearly 1 in 5 urinary infections may begin with contaminated meat.
medium.com/illumination...
#foodsafety #food #science #health #medicine
A new study shows nearly 1 in 5 urinary infections may begin with contaminated meat.
medium.com/illumination...
#foodsafety #food #science #health #medicine
Honored to be featured in Insightful Conversations (Health and Science Publication) by Dr Mehmet Yildiz on Medium. We discussed my journey from veterinarian to food safety consultant and storyteller, and why safe food is the foundation of well-being.
medium.com/health-scien...
#foodsafety #science
medium.com/health-scien...
#foodsafety #science
Insightful Conversations with Dr. Hatem El-Nagar
A veterinarian, a certified Food Safety and Quality Consultant, and an experienced scholarly writer
medium.com
October 6, 2025 at 2:47 PM
Honored to be featured in Insightful Conversations (Health and Science Publication) by Dr Mehmet Yildiz on Medium. We discussed my journey from veterinarian to food safety consultant and storyteller, and why safe food is the foundation of well-being.
medium.com/health-scien...
#foodsafety #science
medium.com/health-scien...
#foodsafety #science
How long can you safely keep cooked chicken at room temperature before it should be refrigerated or discarded?
A) 4 hours
B) 3 hours
C) 2 hours
D) 5 hours
#foodsafety #food #science
A) 4 hours
B) 3 hours
C) 2 hours
D) 5 hours
#foodsafety #food #science
October 5, 2025 at 4:55 PM
How long can you safely keep cooked chicken at room temperature before it should be refrigerated or discarded?
A) 4 hours
B) 3 hours
C) 2 hours
D) 5 hours
#foodsafety #food #science
A) 4 hours
B) 3 hours
C) 2 hours
D) 5 hours
#foodsafety #food #science