Wednesday, November 24, 2010

Why is it important for an active teenager to eat healthy?

Teen athletes have a more complicated diet than normal teenagers because they have a more active lifestyle. Not only are they growing, but they are expending energy while exercising. This means that they have a higher metaboliosm and need more calories to keep their bodies going, sports-wise and growing-wise. If they don't eat the right food for their body, then they're performance levels will decrease and their muscles could even start to break down without enough protein. Teen athletes could also develop health problems and have weight problems (gaining and losing) without enough calories.

There are many different activities that a teen athlete can participate in, and "teen athletes may need anywhere from 2,000 to 5,000 total calories per day to meet their energy needs." This however, is not the mandatory amount of calories. Depending on the person, activity, lifestyle, etc. the athlete could eat more or less.

kidshealth.org

Daily Caloric Intake/Food Labels

Daily Caloric Intake
Daily caloric intake is how much calories that you consumer everyday. Calories is the measure of energy from the foods we eat. The energy we receive from foods is what fuels our bodies. The recommended amount of caloric intake varies from each person. For an active teen, the recommended caloric intake is anywhere from 2,000 to 5,000 calories.

Daily caloric intake varies depends on:
  • Age
  • Intensity of exercise, activity, and sport
  • Weight
  • Gender
  • How active you are
Calories

Information About Macronutrients


Macronutrients
Macronutrients are nutrients that are needed in large amounts. Macronutrients are nutrients needed for growth, metabolism, and most importantly energy. Macronutrients consist of proteins, carbohydrates, and fat. Since active teens are on the move, it is important for them to get these nutrients.

Carbohydrates
Recommended intake: 60-65%.
Composition: Simple sugars, Complex sugars, fiber, and starch
Energy: 4 calories per gram

Carbohydrates is the most important energy source for our bodies. Carbohydrates are made up of sugars and there are two types of carbohydrates. An active teen need to eat foods that are made up of complex carbohydrates for energy. Carbohydrates is the only macronutrient that can supply energy fast enough during activities. If they do not eat enough carbohydrates they won't have enough energy to participate in activities. Carbohydrates fuels the brain and muscles during activities. They also help muscles to repair and recover. Active teens need the energy to perform in various activities and they need it for their bodies to function properly.

Simple Carbohydrates

Simple carbohydrates are simple sugars that can be broken down easily. Table sugar, candy, pastries, and corn syrup are some examples of simple sugars. Simple carbohydrates are usually refined and have few nutrients. When eaten, the simple carbohydrates quickly turns into sugar and quickly enters the blood stream. This leads to weight gain and other health problems.It is not recommended for an active teen to eat foods with simple sugars because they contain many sugars, few nutrients, and short of energy. If an active teen eat foods with simple sugars, they will only have a quick burst of energy and then crash later.

Complex Carbohydrates

Complex carbohydrates are sugars that take longer to break down. The body converts the carbs into glucose which then enters the bloodstream which is used for energy. The rest are turned into glycogen for storage and later use of energy.
Fiber
  • Indigestible and is found in plants
  • Fiber keeps us full longer which stops us from snacking and eating large meals often
  • It helps clean our digestive system
  • Fiber helps slow down the body's absorption of sugar
  • Food that contains fiber are grain products (such as whole grain bread, breakfast cereals, corn, barely, brown rice, and whole wheat pasta.), fruits (such as blackberries, blueberries, strawberries. apples, and oranges.), and vegetables.
Starch
  • Used by plants to store energy
  • Foods that contains starch are brown rice, potatoes, bananas, whole grains, corn, and pasta
  • Starch is turned into glucose and used for energy
Protein
Recommended intake: 10-15%
Composition: Amino acids
Energy: 4 calories per gram
Protein is the building blocks of our body and they are present in every cell. They are in our skin, hair, immune system, tissues, organs and muscles. Proteins hold together, protect, and provide the structure of our body. Protein has many functions as well like making hemoglobins in our red blood cells. Hemogoblin is the part that carries oxygen throughout our bodies.
  • Active teens need protein to rebuild and repair muscles that may have been worn down or damaged during exercise.
  • Protein is made up of amino acids that is used to make proteins
  • There are 22 proteins that are important to our bodies. Out of the 22 proteins we can only make 13 of them.The 9 proteins are found in protein-rich food. These 9 proteins are called essential proteins.
  • Essential proteins are found in animal products. Vegetables, nut, and fruits contain essential proteins, but lacks some
  • Food that contain protein: meat, milk, eggs, nuts, fish, vegetables, and fruits.
Fat
Composition: Oils, lipids, Unsaturated Fat, Polyunsaturated and Monounsaturated fat, Trans fat, and Saturated fat
Recommended intake: 20-25% (Intake must come from the "good fat.")

In order to stay healthy, people avoid eating food that contains fat. Despite what people say, fat is important to our bodies. Fat is important to active teens because during long activities, our muscles quickly burns the energy made from carbohydrates. After the energy from carbs are gone, the body uses the energy from fat. Fat is also important to active teens and everyone else because fat slows down the digestive process so that our body can absorb nutrients.
Other functions:
  • Responsible for making cell membranes
  • Responsible for protecting our internal organs
  • Fat is important to our brain. It helps our brain function properly. 60% of our brain is made from fat.
  • Important to eye function
  • Protects our nerves
  • Keep our heart beating in a regular rhythm
Types of Fat: There are different types of fat such as unsaturated and saturated fat

Unsaturated Fat
Unsaturated fat is the "good fat." Unsaturated fat is the
fat that helps our brain function properly, protect our internal organs, and help our bodies stay healthy in many ways.
  • Monounsaturated fat: Monounsaturated fat is a type of Unsaturated fat and is found in certain oils (olive, peanut, and canola oils), nuts, and seeds (pumpkin and sesame seeds).
  • Polyunsaturated fat: Polyunsaturated fat is important because they contain omega-3 fatty acids. They are found in sunflower, corn, soybean, flax seeds, and fish

Omega-3 fatty acids
Omega-3 fats are essential fats that can only be obtained from certain foods. These fatty acids are thought to protect our bodies and prevent illnesses. They play major roles in our bodies such as providing the starting points for making hormones that regulate blood clotting and reducing illness such as heart disease

Food that contains them:
  • fish
  • Vegetable oils
  • nuts
  • flax seeds and oil
  • leafy vegetables
  • certain animal fats
Saturated Fat:
Saturated Fat is the "bad" fat that you should stay away from. They increase cholesterol and high cholesterol can lead to heart attacks, stroke, and atherosclerosis. It is impossible to not eat anything with saturated fat because they are in many foods such as milk, meat, and seafood products. The key is to limit your intake on saturated fat.

Foods that contain Saturated fat
  • meat products
  • whole-milk daily products
  • seafood
  • coconut
  • coconut, palm, and kernel oil
Trans Fat
Trans fat is also one of the "bad" fat. Trans fat raises our "bad cholesterol" like saturated fats, but its effects is worse. While increasing our "bad cholesterol," it lowers our "good cholesterol." It is not recommended to eat foods with trans fat and all! It is best to avoid them at all cost! Make sure to check if the food contains hydrogenated oils and if it does it is made up of Trans fat.

Foods that contains Trans Fat
  • commercially baked goods
  • snack foods
  • processed foods
  • margarines

Hydration, Vitamins, and Minerals




Hydration
Water is important to our bodies. The muscle tissues in our body are composed of 75% water and the fatty tissues in our bodies are made up of 10% of water. Water is important to the function of our organs and tissues. For example, water helps our bodies maintain its temperature and remove waste.

Water loss
Our bodies loses water when we sweat, go to the bathroom, when we exercise, and even when we are breathing. While exercising for about an hour, our bodies can lose more than a quart of water, depending on the weather and intensity of the work out. People who are active or are sick are in greater risk of dehydration. If active teens don't drink enough before exercising, they will be worn out easily. Even mild dehydration can mess with the teen's performance.

  • Recommended intake of water is 6-8 8 ounces of water each day, but the amount of water needed for a person varies.
  • Fruit and vegetable juice, herbal teas, and milk
  • Fruits (Tomatoes, watermelons, apples, etc.)
  • Vegetables
  • Sport drinks if you are planning to do a high intensity exercise for more than an hour
Vitamins and minerals
Vitamins and minerals are substances found in foods we eat. Our bodies needs vitamins to grow and work properly. Every vitamin has their own special role in our bodies. We get the vitamins and minerals we need from the foods we eat

Types of Vitamins:

Water-Soluble vitamins:
  • Vitamins that cannot be stored in the body and needs to be replenished everyday by eating foods that have them
  • Examples of water-soluble vitamins are Vitamin C and B-complex vitamins
Fat-Soluble vitamins:
  • Vitamins can be stored in the body
  • Vitamins A,D,E, and K
Important vitamins to active teens:
  • Calcium: Calcium helps build strong bones that active teens need. Our muscles, nerves, and other parts of our bodies need calcium to stay healthy as well
  • Iron: Iron carries oxygen to our muscles and and help regulate cell growth. Iron is usually found in animal food and leafy green vegetables.
Vitamins

Foods to Avoid


Because athletic teens exercise so much, they need a healthy and balanced diet. They should try to avoid foods high in trans and saturated fat, salt, caffeine, and high glycemic or sugary foods.


Trans/Saturated Fats:

- increases risk of heart disease (clogs arteries)

- increases "bad" cholesterol

Not only does saturated and trans fat cause you to have long-term problems, but they also cause an athlete to be drained of energy and lethargic. Saturated fats have no real value in your body when burned as energy, and if that's all you eat you won't be able to exercise At your full potential. Saturated fat is found mostly in animal products and trans fat is found mostly in manmade products.

fat


Too Much Salt

- develops high blood pressure

- develops heart disease

- develops edema and kidney stones

When you eat too much salt, it can affect your body negatively. Consuming too much salt also causes you to need more potassium to balance out the salt you have eaten. The average american eats twice as much salt than the recommended portion because of overly seasoned and packaged food. Salt is also said to cause dehydration if you consume it in large enough quantities.

salt


Caffeine

Caffeine has no known long lasting negative effects, but it is not healthy for an active person to consume too much of it. "Caffeine is a diuretic, meaning it cause a person to urinate (pee) more." This means that if an athlete consumes too much caffeine it can cause them to get dehydrated from peeing out all of their liquids. Caffeine also causes an athlete to become "jittery" or jumpy and makes them lose sleep. It is best to just stay away from caffeine altogether. It is found mostly in coffee and chocolate.

caffeine

High Glycemic/Sugary Foods (simple sugars)

High Glycemic foods also have no long lasting affect on athletes, although they are sometimes rumored to cause diabetes if eaten too frequently. Athletes should stay away from high GI foods because they are devoid of nutrients and only cause the athlete to crave more after eaten. Because they are devoid of nutrients, they cause your body to use nutrients to process it, and it ends up causing your insulin and blood sugar to spike. High GI foods are found mostly in white processed bread and grains, candy/sweets, and starchy vegetables (simple sugars).

high GI

3 Day Meal Plan


Day 1:


Breakfast:

1 cup of flax seed granola without raisins

1/2 cup of 50% less fat vanilla yogurt

2 cups of pure 100% pulp orange juice (fresh as possible)

1 cup of tap water


Lunch:

1 whole grain piece of toast

1 cup of fresh tuna with little mayonaise

2 cups of tap water

small sized italian salad with little dressing


Dinner:

half of a filet salmon with purple onions

small sized cesar salad with low fat dressing and no croutons

1 glass of no fat milk

2 cups of water


Snacks:

one scoop low fat churned vanilla ice cream

nutrigrain bars (1-2)

low fat string cheese


Day 2:


Breakfast:

whole grain waffles with light whipped cream and fresh strawberries or blueberries

1 glass of no fat milk

1 cup of tap water

5 inch cubes of firm tofu


Lunch:

1 cup of fruit salad with bananas, strawberries, blueberries, melon and apples

1 open top (no top bun) tofurkey burger with lettuce and a tomato slice

2 cups of water

1 glass of pure pulp orange juice


Dinner:

one piece of rotisserie chicken

1 cup salad (any kind with little dressing)

2 cups of water


Snacks:

one nature valley oats granola bar

one nutrigrain bar


Day 3:


Breakfast:

1 1/2 cup Fresh Acai bowl

2 cups of 100% apple juice, natural sugar

1 cup of water


Lunch:

2 cups of vegetable soup, low fat if possible

1 cup fresh baby carrots

2 cups fresh orange juice

1/2 cup of blueberries


Dinner:

8 oz rib eye steak

2 cups ceasar salad with 2 table spoons of dressing and no croutons

1 cup broccoli

2 cups water


Snacks:

4 cups of water

2 kraft low fat string cheese

one whole red delicious apple