Hillary S. Morgan, M.D.
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Nutrition GlossaryDiet and nutrition are extremely important, however, many
people don't fully understand the terms frequently used. The following is a
glossary to help you understand some of the common nutrition terms.
- Carbohydrates: Carbohydrates
are the main source of energy for the body. Those carbohydrates come from the
plant-based foods that you eat. You can either use carbohydrates right away for
your energy needs or your body can convert them into fat to use later. There
are three types of carbohydrates -- sugars, starches and fiber.
- Protein: Protein is the main structural component of
the body. Organs, muscles, blood, cell membranes, and immune system are all
made up of protein. The individual units are called amino acids, and are found
throughout our diet in meats, dairy products, eggs, poultry, fish, legumes, and
soy. Macronutrient needed to build body tissues.
- Fat: The substance in food that provides a rich
texture and flavor. Macronutrient necessary for life.
- Enzyme: A specialized substance that acts as a
catalyst to regulate the speed of the many chemical reactions involved in the
metabolism of living organisms.
- Fiber: (also known as roughage or bulk) The
indigestible structural component of plants. Fiber is important for healthy
digestion, bowel function, and may help to prevent diabetes and cardiovascular
disease. Insoluble fiber is mostly found in whole grains and does not absorb
water. Soluble fiber absorbs water and is found fruits, vegetables, beans,
peas, and legumes.
- Cholesterol: A waxy substance found in your body that is
needed to produce hormones, vitamin D and bile. Cholesterol is also important
for protecting nerves and for the structure of cells.
- Gluten: Glutens are proteins found in all grains. The
type of gluten that's associated with celiac disease is found in wheat, rye,
spelt and barley; so when you see the word "gluten," it's usually referring
only to those grains.
- Metabolism: The biochemical processes by which nutrients
are broken down and converted into energy that is used by the body or stored
for later use. Amount of energy your body burns per day to function. It’s measured
in calories.
- Trans Fats: Formed by the partial hydrogenation of
vegetable oils. Type of fat formed by the partial hydrogenation of vegetable
oils that has been shown to be bad for your health. Trans fats raise LDL
cholesterol, which is a risk factor for cardiovascular disease. Most of trans
fats are man-made. However, a small amount of naturally occurring trans-fat is
found in animal products.
- Vitamin: A substance, required in a small amount that
is essential for normal growth and activity of the body. Vitamins are obtained
through the foods you eat. They are classified as fat-soluble or water-soluble
vitamins. Also known as: Micronutrients
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