A doctor who graduated from Harvard University has gone viral after revealing how dangerous wearing shoes indoors can be.
Dr Saurabh Sethi, a gastroenterologist, shares his experience and knowledge with his 499,000 followers on TikTok (@doctorsethimd).
He recently issued a shocking warning for those who consume less than one teaspoon of salt per day – noting that it’s “extremely harmful”.
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Now, the 42-year-old is urging people not to wear shoes indoors – especially in your own home – as it can be potentially “life-threatening”, reports What’s The Jam.

In the clip, which has racked up 122,000 views and over a thousand likes, he explains that as a doctor, he follows a strict “no outdoor shoes inside home” policy.
“This is because shoes can carry various toxins,” Dr Sethi, from California, US, says.
“Including pesticides, chemicals, viruses and bacteria, [as well as] heavy metals like lead.”
The doctor refers back to research that shows 96% of shoe soles carry faecal bacteria, including E. coli.
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He continues: “This can lead to severe gut infections and UTIs.
“This is especially concerning in homes with crawling children, who have a habit of putting everything in their mouths.”
To minimise the risks, he strongly urges people to remove their shoes before entering any home.
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Users have flocked to the comments to share their reactions.
“That’s a number one rule in my home,” Layla said.

Another user added: “None of my family wear outdoor shoes inside. We have our shoes near the front door.”
“My culture don’t allow shoes in my house,” Ana commented.
Someone else said: “I’ve been wearing shoes inside all my life never had a gut infection or utis.”

“So my mom was right?” Marcello added.
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