NUTR 202 Study Guide - Midterm Guide: Hydroxylapatite, Iodised Salt, Macrocytic Anemia
8 Jul 2016
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Describe how proposed changes to the nutrition facts label on foods may improve sodium and potassium intake. Systolic: when the heart contacts and forces blood to move. Diastolic: lowest blood pressure reading in a cardiac relaxation. Sodium: high amounts may increase risk of hypertension. Increased fruits/vegetable (potassium), increased whole grains (magnesium), low-fat dairy (calcium), lower saturated fat. Healthy body weight, physical activity, no smoking, moderate alcohol. Functions: normal vision, healthy cornea, immune function, epithelial cells, cell specialization, gene regulation, bone metabolism. Preformed vitamin a: ready to use (found in animal-based or fortified foods) Provitamin a: converted to active form as needed (beta-carotene, plant based foods) Dietary sources: fortified milk, cheese, eggs, green leafy vegetables, apricots, cantaloupe, carrots, sweet potatoes, pumpkins. Role in calcium metabolism: stimulates cells of small intestine to produce calbindin (calcium-binding protein), stimulates kidneys to conserve calcium, stimulates calcium release from bone.
