It is a myth that a slice of toast has fewer calories than a slice of bread – the calories that go in to the toaster and the same calories that pop back up again! The only difference between the bread that goes in and the toast that comes out, apart from being warm and crispy, is the weight.
When the bread is being cooked, water is lost through evaporation. This means that the slice of toast is lighter than the slice of bread it was made from – but it has the same calories and nutrients. An average slice of wholemeal bread weighs 36g and has around 80 calories. This slice of bread toasted weighs 31g but also has around 80 calories.
Bread is an important source of complex carbohydrates, which release energy slowly, helping us feel fuller for longer. Bread, especially wholegrain varieties, is a valuable addition to a healthy, balanced diet.
Thanks to tescodiets.com who have provided this article.