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Science

Published on Nov 22, 2015

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PRESENTATION OUTLINE

CARBS AND PROTEIN

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PROTEIN

  • Milk
  • Chicken
  • Venison
  • Beef
  • Pork

PROTEIN

  • Eggs
  • Peanuts
  • almonds
  • cheese
  • Protein bar

CARBS

  • Noodles
  • bread
  • Bananas
  • Cranberries
  • Blueberries

CARBS

  • Brown rice
  • Low fat yogurt
  • Soda
  • Apples
  • Jam
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Carbohydrates, proteins and fats form the three main macronutrients that are essential in every balanced diet. While proteins and fats may be responsible for bodily functions such as the creation of body tissues and insulation, carbohydrates provide calories that are necessary for the production of energy. In fact, carbs provide more than 60 percent of the amount of energy required by the body. The energy is mostly used for normal body functions such as heartbeat, digestion, breathing and body movement. Carbohydrates can be classified according to their chemical structures, and under such classification, they are divided into simple carbohydrates and complex carbohydrates.

Simple carbohydrates are simple sugars with a chemical structure that is composed of one or two sugars. They are refined sugars that have very little nutritional value to the body, and therefore, it's advisable that their consumption be limited to small quantities. In comparison to complex carbohydrates, simple carbohydrates are digested by the body more quickly, because they have a very simple chemical structure.

Complex carbohydrates consist of a chemical structure that is made up of three or more sugars, which are usually linked together to form a chain. These sugars are mostly rich in fiber, vitamins and minerals. Due to their complexity, they take a little longer to digest, and they don't raise the sugar levels in the blood as quickly as simple carbohydrates. Complex carbohydrates act as the body's fuel, and they contribute significantly to energy production.

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Proteins - Almost all whole foods contain protein. Some contain more amino acids than others, and some contain all the amico acids necessary for optimal dietary needs. Proportions of these amino acids may vary from one food to another. Meals that combine a variety of protein foods can provide all the essential amino acids that may be lacking from one particular source. Vegetable protein sources are often lacking in one or more essential amino acids, as opposed to animal proteins which are generally considered complete proteins.

An incomplete protein is any protein that lacks one or more essential amino acids in correct proportions. These can also be referred to as partial proteins. Even if the protein contains all the essential amino acids, they must be in equal proportions in order to be considered complete. If not, the protein is considered incomplete.

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A complete protein contains an adequate amount of all of the essential amino acids that should be incorporated into a diet. Some protein contains all the amino acids needed to build new proteins, which generally come from animal and fish products. A complete protein must not lack even one essential amino acid in order to be considered complete.

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