A dentist has revealed the five things that make your breath stink.
Dr Stewart Beggs, from Chelsea, west London, revealed that eating certain foods makes breath reek - while halitosis can also be affected by smoking and drinking.
Taking to Tiktok, the dentist said that the first foods to avoid for fresh breath is garlic and onion.
Next up, he said that fish - in particular tuna - can cause stinky breath.
He also says that coffee and alcohol should be avoided as it dehydrates you, causing smelly breath.
Finally he adds that smoking cigarettes can also make your breath smell.
Dr Beggs comments come after a dentist has revealed the five high street products she advises her patients against using - including charcoal toothpaste.
Dr Surina Sehgal, who works in Central London, is a general and cosmetic dentist.
Earlier this month, the TikTok star - who boasts 35,000 followers - went viral when she filmed a discussing the common dental hygiene products she swerves.
Opening the video in her practice, Surina said: 'Come with me to rate some of the worst dental products you can buy over the counter.'
Dr Stewart Beggs, from Chelsea, west London, revealed that eating certain foods makes breath reek - while halitosis can also be affected by smoking and drinking
After walking to her local Boots, the expert filmed herself holding a bottle of Listerine mouthwash as an example she would personally avoid.
She explained: 'Avoid alcohol in all mouthwashes, it's way too harsh.'
If used too often, mouthwashes which contain alcohol can begin to dissolve your teeth's enamel.
Next up, the dentist urged people not to buy their own DIY dental kits - which often contain scalpels to remove plaque at home.
Using a Boots own-brand kit as an example, Surina said: 'The instruments here contain really sharp edges, which make it easy to traumatise your gums and chip your teeth. If you loved this article and you simply would like to obtain more info about dental health fund [yourmartialartssocialmedia.com] generously visit the internet site. '
Thirdly, Surina advised against using 'colour correcting' serums - as she says they're quite often not worth the money.
The expert continued: 'This [product] works by a very clever colour illusion but doesn't actually whiten your teeth.
'So don't believe the hype guys!'
After this, Surina turned her attention to home whitening kits and urged viewers to check the ingredients before buying them.
Dr Surina Sehgal, from London, went viral on TikTok with her 'do not buy' video earlier this month