*Food for infant

Infant growth rapidly. During the first year of life, infants may treble their weight at birth, increase in length, and develop in other ways just us rapidly. During this year of growth, their digestive tracts are not as completely developed as in any other period in their life. As their stomach capacity is small, care must be taken in providing for their food needs.

*Food for preschool children

Children from 18 months to 5 years of age are said to be in the preschool age. At this stage children are very active. This is a very a very important time in the formation of their food habits. It is the time to get children started on the dietary road to good health. Because of these, the choice of food should not be left to them entirely.

*Food for young schoolchildren

Children from 5 to 11 years of age are much less active than their brothers and sister of high school age. growth during these years usually proceeds at a slower rate than it does in adolescence. Foods needs are therefore relatively less.. Nevertheless, a well-selected diet of easily digestible foods is important.. Milk is fully as important at this age.

Children of school age should get up early in the morning to have plenty of time to eat breakfast, without fear of being late for school. Their most substantial meal should be eaten at noon. An early evening meal is desirable for them.

* Food for teenagers

             Young people of high-school age form a very important and interesting group. They are active and busy with school work, and in addition, they engage in strenuous games like football, basketball, and volleyball. Plenty of food is needed to keep the engines running when so much work is being done. And when so much food is necessary, the digestive system is kept busy. Thus, only easily digestive foods should be given to these young people.

* Food for adults

Adults should be as up-to-date in their selection of food as children are. Their attitude toward food greatly influences those of the young people ones. Milk, vegetables, fruits, cereals, eggs, meat and other protein rich foods, butter and butter substitutes, and sugar and other sweet foods in moderate quantities should form the basis of the adult's diet.

           As age increase, body processes decrease in vigor and activity lessens. Energy requirements lessen in proportion. The digestive apparatus is generally less vigorous. Loss of teeth sometimes makes chewing hard food impossible. The food selection of an adult should then be adapted to these physical changes.