Healthy diets range from structured plans like the Zone or Daniel Fast to high-protein regimens for bodybuilders. Learn how to lose weight sustainably using lean proteins, or gain weight quickly through balanced nutrition and meal timing.
Nutrients are essential for your survival. Proteins, fats and carbohydrates are called macronutrients. Your body needs larger amounts of macronutrients for energy, growth and development. Fats provide 9 calories per gram while protein and carbohydrates each provide 4 calories per gram.
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The nutritional requirements for elderly adults differ from people in other age groups. According to an article published in 2006 in the "Japanese Journal of Geriatrics," the definition of "elderly" should be those persons over the age of 75.
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