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Why You Should Avoid Overdoing It On Sugar When You're On Antibiotics

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02.10.2026

Why You Should Avoid Overdoing It On Sugar When You're On Antibiotics

A new study suggests eating sugary foods on antibiotics might be amplifying damage done to the gut.

Parents editor at HuffPost UK

Antibiotics are some of the most prescribed drugs around the world – and while they’re handy for fighting a whole host of bacterial infections, anyone who’s been on them will know they can also wreak havoc on gut health.

On a very simple level, the medication targets bacteria in the body to kill off the bad stuff – unfortunately it can also get rid of the good stuff, too.

“The extent to which antibiotics affect the gut depends on several factors,” Dr Megan Rossi, a gut health scientist at King’s College London, previously told HuffPost UK, suggesting that the type of antibiotic matters (broad-spectrum ones, for example, affect a wider range of bacteria in the gut), as does the dose (prolonged........

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