The word "food" nourishes and brings many images to our mind. It is associated i with worship and divinity, celebration,and mourning, social and family gathering and to community kitchens. So, food plays a crucial role in our lives.
Food is the most basic need of man. Food is intimately woven into the physical, economical, psychological, intellectual, social and cultural life of man. Food furnishes the body with the energy required for all human activities. It provides adequate nutrients for the body's growth, maintenance, repair and reproduction.
It provides materials required for the building and renewal of body tissues and substances that are necessary to regulate the body processes. Man has exhibited much thought and foresight in cultivating a variety of grains, fruits, vegetables, nuts, oil seeds and in rearing birds and animals for use as food. The selection of foods best suited for promoting good health has been found out by various researchers. Food is composed of different kinds of substances "nutrients" which when consumed in adequate amounts, fulfill all the functions of body. Food also plays important role besides that of nutrition. Wars have been won by blockading food supplies to the enemy. Power of food may be exerted in society and in the family, through its use as a reward or punishment.
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