National Smile Month

Between 12 May and 12 June 2025, the Oral Health Foundation will raise awareness of important oral health issues.

Join the nation's biggest oral health campaign and help bring a smile to millions of people.

This year the theme for National Smile Month is Feed Your Smile.

Find out more Take part

What you eat plays a huge role in keeping your teeth strong and healthy.

Dairy products are some of the best smile-friendly foods out there, packed with essential nutrients that help protect enamel, strengthen teeth, and keep your mouth in top shape.

From calcium-rich milk to probiotic-packed yogurt, adding the right dairy foods to your diet can make a real difference.

Not a fan of dairy? No problem - there are plenty of non-dairy options that can still help you maintain a strong, healthy smile.

A woman holding a jug of milk

Milk

Why? High in calcium and phosphorus, milk helps remineralise teeth and neutralise acids that can lead to decay.

Best choice: unsweetened or semi-skimmed milk. Avoid flavoured or sweetened varieties, which often contain added sugars.

A platter of cheeses

Cheese

Why? Cheese stimulates saliva production, helping to wash away harmful bacteria and acids. It also contains casein, a protein that helps repair enamel.

Best choice: hard cheeses like cheddar, swiss, or parmesan are especially good for strengthening teeth.

A pot of Greek yoghurt

Yoghurt

Why? Packed with calcium and probiotics, yoghurt supports both teeth and gum health by promoting good bacteria in the mouth.

Best choice: plain, unsweetened yoghurt. Flavoured yoghurts can contain high amounts of sugar.

Non-dairy calcium sources

If you’re lactose intolerant or don't eat dairy, you can still get plenty of calcium from other sources.

A bowl of leafy greens

Leafy greens

For example spinach, kale, and bok choy.

Small dishes of nuts

Nuts and seeds

For example almonds, chia seeds, and sesame seeds.

A small tin of sardines

Fish with edible bones

For example sardines and canned salmon.

Always check the label to see if any bones are edible or should be removed.

A graphic illustrating milk flying through the air

Fortified plant-based milk

For example almond, soy, and oat milk with added calcium.

Check the labels to see which vitamins and minerals have been added to your preferred plant milk.

How to include more calcium in your diet

  • Have a glass of milk with meals instead of sugary drinks.
  • Snack on cheese cubes or yoghurt instead of biscuits or crisps.
  • Add leafy greens to salads and smoothies.
  • Choose calcium-fortified plant-based options if you avoid dairy.

The bottom line

Dairy products are a powerful ally for your smile, providing the calcium, phosphorus, and proteins needed to strengthen enamel and fight tooth decay.

Whether you choose milk, cheese, or yoghurt, making calcium-rich foods a regular part of your diet is one of the best ways to protect your teeth for life.

Want more tips on smile-friendly nutrition? Check out our best foods for teeth guide!