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Skipping breakfast is one of the ‘worst’ things you can do for your teeth, says dentist Credits: Social Media
By Ellissa Bain

Skipping breakfast is one of the ‘worst’ things you can do for your teeth, says dentist

By Ellissa Bain

Looking after your teeth isn’t just about brushing and flossing. What you eat is really important too – and when you eat it.

You probably had no idea, but a dentist has warned that skipping breakfast is one of the worst things you can possibly do for your oral hygiene, and it’s something nearly a quarter of US adults do on a daily basis as estimated by one report.

Young woman eating a bowl of cereal
Credit: The Good Brigade (Getty Images)

Skipping breakfast is bad for your teeth

Dr Smita Mehra, Principal Dentist at The Neem Tree Dental Practice, says eating breakfast is essential for healthy teeth and gums.

“Skipping any meal can negatively affect your oral health, but skipping breakfast is often considered the worst,” he said.

Eating first thing in the morning activates your saliva glands, stimulating saliva production which helps to break down bacteria.

“Saliva contains enzymes like lysozyme and immunoglobulins that help control the growth of bacteria and fungi in the mouth, reducing the risk of infections such as gum disease and tooth decay,” the dentist explained.

Overnight, bacteria and acids build up in your mouth due to the reduced amount of saliva, and eating helps to neutralise this acid. 

Skipping breakfast leaves the acid behind, and this acid is what causes tooth decay, making you more susceptible to cavities. The saliva also lubricates your mouth, stopping dryness which can cause discomfort and decay.

Not eating breakfast leads to snacking

People who don’t eat breakfast are more likely to snack on unhealthy treats later in the day too, which can lead to even more dental issues.

One study in the American Society for Nutrition Journal found that eating a high-protein breakfast increased fullness, reduced food cravings and limited unhealthy evening snacking when compared to skipping breakfast.

“Skipping breakfast or lunch can also lead to increased snacking throughout the day. Especially if you are busy at work or have a hectic schedule, you might often snack on unhealthy, sugary, or processed foods, which arent good for your teeth and gums,” Smita said.

Sugary foods cause the mouth to produce acid which decays the teeth by dissolving the enamel and creating holes, called cavities, Colgate explains. One dentist recommends eating cheese after sugary foods to neutralise this acid.

Charming blonde patient sits comfortably in chair at dentist office with mouth open during examination
Charming blonde patient sits comfortably in chair at dentist office with mouth open while unrecognizable skilled dentist conducts meticulous examination. Using angled mirror, dentist explores patient oral health, providing comprehensive care and attention. Credit: Iuliia Burmistrova (Getty Images)

How to maintain good oral hygiene

As well as always eating breakfast, following these daily steps outlined by MedlinePlus will ensure you maintain good oral hygiene and limit your risk of tooth decay.

  • Brush your teeth twice a day with a soft-bristled toothbrush for at least two minutes
  • Use a fluoride toothpaste which strengthens tooth enamel and helps prevent decay
  • Floss at least once per day after brushing to remove plaque that is left behind
  • Replace your toothbrush every 3 to 4 months or sooner if needed
  • Eat a healthy diet and avoid sweets or sweetened drinks
  • Do not smoke as it is extremely bad for your teeth and gums
  • Schedule regular dental checkups and have your teeth professionally cleaned

Dr Smita Mehra is a dental surgeon who graduated from the University of Birmingham in 1997 and is now a member of the Faculty of General Dental Practitioners.