Importance of Nutrition in Age Groups Generally, nutrition is defined as a branch of science which studies and interprets the relational effect of nutrients and substances in food to the life growth, maintenance, reproduction, health and illnesses of people, including that of other living organisms. The study includes such processes of food digestion, absorption and assimilation, biosynthesis, catabolism and excretion. The food intake or diet of a person represents the kinds of food he/she eats, and which is determined by the availability of the food, how the food was processed or prepared, and how good the food was. To have a healthy diet, food must be well-stored and properly prepared and cooked so that the food nutrients are preserved and are kept from being oxidized or from being spoiled from heat or leaching or from food poisoning. Nutrients that are organically derived are made up of carbohydrates, fats, proteins and amino acids, and vitamins, as well as water, oxygen, and minerals. It has been studied and observed that our dietary needs change as we age and this occurrence will continue through all the stages in life; therefore, the food nutrients will also be affected such that they undergo a relational adjustment as we grow older. It is not just the stages of age where the diet of people changes, but there are also factors that contribute in the dietary change, such as economic, psychological, and social aspects.
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The initial observance of proper nutrition begins at the first six months of a baby’s life, in which nutritionists highly recommend that the mother feeds her baby with her breast milk since it is full of nutrients and antibodies that are needed by the baby. After six months, solid food can already be given to the baby together with the mother’s breast milk.
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The dietary nutrition for the pre-school age group considers the following food combination – carbohydrates, fruit and vegetables, milk and dairy foods, protein and good quality fats, as well as vitamins A, C, calcium, iron and zinc. When the child reaches school age, which stretches to puberty, proportions of the nutritional requirements according to their age and physical, mental and social activities will now vary, such that it is imperative that a healthy balance of food nutrients be afforded to ensure a healthy lifestyle. At this age group level, nutritional requirement that contains proportional balanced diet of the essential foods including calcium, iron and protein with vitamin supplements must be found in the three meals taken each day – breakfast, lunch, dinner. Growth and development will be almost over when we reach adulthood, such that this signals on the direction for the body to shift to adult form of nutrition to continue in maintaining a physically active life. The dosage of food intake, at this age level, should be limited into individual portions but not forgetting to still have three meals a day and that snacking should be choosing healthier options, like whole grain toast, fruits. Normally, most adults eat in small portions than they use to when they were young, so it is best to prepare and cook large meals and freeze the rest of the foods until the next meal. It is indeed constraining when we reach the elderly stage as continued changes in our bodies are happening, slowing down are appetite for food and limiting our mobility, and, with that, the buying and preparing of good food is also restricted. What is suggested, when this situation happens, is to buy pre-cooked meals, which are nutritionally balanced, which can be frozen for a longer period of time, so that small portions can be heated as the need arises.