7 doctors weighed in:
Can citrus cause canker sores?
7 doctors weighed in

Dr. J. Lawrence Dohan
Dermatology
2 doctors agree
In brief: NO!!!
But any acidic materiel will sting on contact with an aphthous ulcer, suddenly making you aware of it.

In brief: NO!!!
But any acidic materiel will sting on contact with an aphthous ulcer, suddenly making you aware of it.
Dr. J. Lawrence Dohan
Dr. J. Lawrence Dohan
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In brief: Yes
The acidity in the citrus can affect the ph in the mouth that can cause canker sores in susceptible individuals.

In brief: Yes
The acidity in the citrus can affect the ph in the mouth that can cause canker sores in susceptible individuals.
Dr. Edward Zuckerberg
Dr. Edward Zuckerberg
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Dr. Kyle Shank
Dentistry
In brief: Sorta
Anythig acidic like citrus can trigger an outbreak.
I say 'sorta' because it is triggering an outbreak of a virus that is already there. Trauma like biting your tongue or a lot ofmstretchingnat the corners of the mouth at the dentist can also trigger outbreaks. Back on the food note, i've also seen tomato-based products trigger outbreaks as well.

In brief: Sorta
Anythig acidic like citrus can trigger an outbreak.
I say 'sorta' because it is triggering an outbreak of a virus that is already there. Trauma like biting your tongue or a lot ofmstretchingnat the corners of the mouth at the dentist can also trigger outbreaks. Back on the food note, i've also seen tomato-based products trigger outbreaks as well.
Dr. Kyle Shank
Dr. Kyle Shank
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1 comment
Dr. Ragan Faler
Generally "canker sores'' refer to minor apthae or ulcers vs. "Cold Sores'' which are recurrent herpetic viral outbreaks. For some patients, Citrus can cause outbreak of minor apthae, or commonly referred to as "canker sore".
Dr. Ralph Morgan Lewis
Family Medicine
In brief: Canker sores
The cause of canker sores is uncertain, but some people seem prone to developing them with large citrus intake.
Most common cause is mouth trauma, as from overly vigorous brushing the teeth or accidentally biting the inside of one's mouth. Try limiting citrus intake to see if that makes a difference.

In brief: Canker sores
The cause of canker sores is uncertain, but some people seem prone to developing them with large citrus intake.
Most common cause is mouth trauma, as from overly vigorous brushing the teeth or accidentally biting the inside of one's mouth. Try limiting citrus intake to see if that makes a difference.
Dr. Ralph Morgan Lewis
Dr. Ralph Morgan Lewis
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