Avoiding acidic foods and having teeth whitening treatment can give people celebrity-like smiles, according to one industry commentator.

Individuals who want a whiter smile should avoid coffee, nicotine and carbonated drinks, the celebrity gossip and entertainment blog Viral Socialite stated.

The website advised drinking lots of water and milk to restore health and eating foods rich in vitamin C such as oranges, which are described as natural bleaching agents.

However, it noted that in some cases, professional teeth whitening will be necessary as tooth enamel may be too damaged and stains cannot be removed.

The blog suggested dental veneers may need to be applied to cover the existing surface and can give a brighter appearance for up to five years.

Smokers were recently warned by experts at WorlDental magazine that not only could the habit make teeth appear unsightly, but that it could also cause them to fall out.