nats1043 - What is Nutrition Nutrition-the study of food...

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Unformatted text preview: What is Nutrition?- Nutrition-the study of food including: o How food nourishes our bodies with nutrients. o How food influences our health. o Jobs within nutrition study.- Nutrients o Components of food required for the body’s functioning. o Roles: Provides energy. Building material-maintaining and growing. Maintenance and repair. Support growth. Why is nutrition important?- Nutrition contributes to wellness.- Wellness-the absence of disease.- Physical, emotional, and spiritual health- Critical components of wellness: o Nourishment o How in shape you are.- Besides diet, other factors affect health: o Tobacco, alcohol, substance abuse, sleep, stress, conditions at home and work.- Nutrition can prevent disease. o Nutrient deficiency diseases: Scurvy, goiter, rickets. o Diseases influenced by nutrition, genetics, diet, and lifestyle: Heart disease, stroke, diabetes. o Diseases in which nutrition plays a role but also genetics diet and lifestyle: Osteoporosis, some cancers.- The importance of nutritional genomics o Nutritional genomics-the science of how nutrition affects the activity of genes and how genes affect the activity of nutrients. o Holds the promise of more precisely determining an individual’s nutrient needs, fighting disease, etc.- A lifetime of nourishment o Well chosen array of foods will prevent malnutrition. Malnutrition- nutrient imbalances • Nutrient deficiencies • Nutrient excesses o Undernutrition Nutrient or energy deficiency o Overnutrition Nutrient or energy. o Foods consumed have a cumulative effect on your body. Effects become obvious with age. o The body continuously renews itself Each day old tissue is replaced with new tissue. • Ex. Muscle, bone, skin, blood.- Nutrition is so important it has become a national goal o Big Goals of Healthy People 2010 Increase quality and years of healthy life. Eliminate health disparities o Smaller Goals Increase fruit and vegetable intake and whole grain Decrease total fat intake Increase physical activity-What are nutrients?-Nutrients are the chemicals in foods that are critical to human growth and function.-Macronutrients-nutrients required in relatively large amounts.-Provide energy to our bodies.-Carbohydrates, fats and oils, proteins.-Micronutrients-nutrients required in smaller amounts.-Vitamins and minerals.-Energy from nutrients-we measure it in kilocalories (kcal)-Kilocalorie-amount of heat required to raise the temp. of 1kg or water by 1 degree C.-On food labels, “calories” actually refer to kilocalories....
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nats1043 - What is Nutrition Nutrition-the study of food...

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