High levels of calories and fat in some of these products can be spotted on the label. But there are other concerns about the nutritional value of some ready meals – things you won’t find on the label.
One concern is the way these foods are cooked. Cooking processes can be just as important for our health as the sugar, salt and fat content. Beetroot turning cooking water purple is a vivid example of how nutrients (antioxidants called betalains) can be lost.