What is nutrition?
Nutrition is the
study of food and how it affects the health and growth of the body. Nutrients
are substances found in foods that our bodies use to grow, reproduce and
survive.
Sports nutrition is the study and implementation of a diet/plan that is designed to increase athletic performance. Best performance is achieved by providing the right amount of food type (protein, carbohydrates, fats, fiber, etc.), fluids and nutrients to maximize energy and aid in sports recovery.
How many types of
nutrients are there?
There are more
than 40 different kinds of nutrients in food and they can generally be
classified into the following 7 major groups:
i) Carbohydrates ii) Proteins iii) Fats iv)Vitamins v) Minerals vi) Dietary fiber
What are the
nutrients functions?
Water. Water is
crucial for survival, especially because it accounts for 60% of the human body.
...
Carbohydrates.
Carbohydrates are your body's primary source of energy. ...
Fiber. Plants that
contain fiber include fruits, vegetables, and grains. ...
Fats. Fats are
necessary to sustain a healthy body. ...
Protein: Its major functions include building, repairing and maintaining healthy body tissues.
Vitamins:There are
many kinds of vitamins from various food groups and they participate in
different body metabolism such as maintaining healthy skin and hair, building
bones and releasing and utilizing energy from foods
Minerals:Minerals are a group of essential nutrients which regulate many body functions such as fluid balance, muscle contraction and transmission of nerve impulses. Some minerals are structural component of the body, such as calcium in bones and teeth.
Water
Why are they
essential to our body?
Each of the 7 major groups of nutrients performs different and unique functions in our body, which are all essential in a balanced diet because they work together and contribute to our good health. The main functions of these nutrients can be summarized below:
Carbohydrates
Carbohydrates are a major source of energy of our body, and they come mainly from grains, such as rice and noodles. Besides, other foods such as fruit, root vegetables, dry beans and dairy products also contain carbohydrates.
Proteins
Meat, fish, seafood, eggs, dairy products, dry beans and bean products are good sources of protein. Its major functions include building, repairing and maintaining healthy body tissues.
Fats
Fats can be found in foods such as meat, dairy products, nuts, seeds and edible oils. Fats serve as a kind of energy source. They prevent heat loss in extreme cold weather and protect organs against shock. They are responsible for making up part of our body cells and transporting fat-soluble vitamins such as vitamin A, D, E and K.
Vitamins
There are many
kinds of vitamins from various food groups and they participate in different
body metabolism such as maintaining healthy skin and hair, building bones and
releasing and utilizing energy from foods. Vitamins can be classified into
water-soluble and fat-soluble vitamins.
Minerals
Minerals are a group of essential nutrients which regulate many body functions such as fluid balance, muscle contraction and transmission of nerve impulses. Some minerals are structural component of the body, such as calcium in bones and teeth.
Dietary fibre
Dietary fibre is the indigestible part found in plant. It helps stablise blood sugar, promote gastrointestinal health and prevent constipation. Dietary fibre can be classified into soluble and insoluble fibre.
Water
Water is the most abundant substance in human body and is also an essential nutrient to maintain our health. The major functions of water include regulation of body temperature, production of body fluids, transportation of nutrients and removal of waste products.
Each nutrient
performs different functions in our body, they all work together and contribute
to our good health by having a balanced diet.


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