There are five white food substances, which have to be avoided. They are sugar, salt, maize, rice and milk. Dietician says that if a person consumes less or avoid those five things, he can lead a healthy life. Sugar is mainly added for taste and it doesn’t have any nutritional value. Salt is essential but it is advised to take it very less, since it can be reason for high blood pressure. Maize is another which has to be avoided. Rice has too much of carbohydrates, which is not good for health. Milk should not be consumed frequently as it contains. Person above fifty years are advised to avoid those substances.