How much water do you think we need a day?

Bellringer

WaterThe Forgotten Nutrient

Carbohydrates Fats Proteins Vitamins Minerals Water

6 major nutrients we need for survival

Essential nutrient that must be replaced everyday

Depending on your health, you MAY be able to survive 8-10 weeks without food, but without water, you can only survive a few days!

WATER

How much of our body is water?

On average, body weight is 50 to 75% water or about 10-12 gallons.

Water is a simple substance containing two parts hydrogen and one part oxygen (H20).

It has no calories, but every body process needs water to function.

(in gallons)

Water regulates your body temperature, keeping it constant at about 98.6 F

Many body processes produce heat, including any physical activity. Through perspiration, heat escapes from your body as water evaporates on your skin.

Why do we need water?

Lubricant: A substance that reduces friction between surfaces.Ex: The water in saliva lubricates food as you swallow it.

Water Vocab

Improve your mental and physical performance

Remove toxins and wastes from the body Help you lose weight Avoid or cure headaches caused by

dehydration Make your skin look clear and healthy

What can water do for you?

How much is necessary?

6 - 8 Cups a day -OR- A good estimate is to take your body

weight in pounds and divide that number in half.

(_____lbs./2)= the number of ounces of water per day that you need to drink.

Ex. 150 lbs./2 = 75 oz

If you exercise you should drink another 8 ounce glass of water for every 20 minutes you are active. (1/2-1 cup)

Water loss…

One and one-half cups of water is lost just through breathing.

The average adult loses about three quarts of water daily through perspiration, urination, bowel movements and even breathing.*Kidneys produce/regulate the amount of urine lost

High altitude=heavier breathing=greater output of water vapor

Hot weather and/or exercise=sweating Illness: vomiting, diarrhea, bleeding, high fever

Diuretics:

Substances that increase urine production. *Caffeine and alcohol.*Coffee and soda are not good choices for fluid replacement.

Factors that increase water loss

Dark Urine/Strong Odor/Low Volume Dark Sunken Eyes Low Energy/Fatigue Irritability/Emotional Instability Thirst/ You are already dehydrated Loss of Skin Elasticity

When you lose 2% of body weight in fluids, you become aware of the sensation of thirst.

Signs of Dehydration

Juicy fruits and vegetables such as celery, lettuce, tomatoes and watermelon contain more than 90% water.

Even dry foods such as bread supply some water.

Water in Foods

Apple vs. Grapes Apples Grapefruit vs. StrawberriesStrawberries Oranges vs. PineapplesEqual amounts Broccoli vs. CauliflowerCauliflower Celery vs. TomatoesCelery Cucumber vs. Iceberg LettuceEqual amounts

Water Content in Foods

Water intoxication:A rare condition caused by drinking too much water.

Symptoms: headache, muscle weakness*Severe cases can cause death*http://youtu.be/1Vj5aYc5ZVg

We can have TOO MUCH water

Helps flush out toxins and fat

Helps one feel full without calories

Just replace some of the high calorie foods you eat with fruits, vegetables and other water dense foods that keep you just as full

Water and Weight Loss

Kidney stones:Hard particles of mineral deposits that form in the kidneys.Very painful when you have to pass from kidney to bladder and out of the body!

Dark yellow urine=high concentration of wastes When water intake is too low, the kidneys must work in overtime to eliminate wastes.

BEWARE!http://www.youtube.com/watch?v=LngbrHJkXoE

Bottled is no healthier than safe, clean tap water

Taste: dissolved minerals give water its taste Safety: depends on where you live, but most

tap water is safe and treated to government standards

Bottled water comes from the same source as tap water, FDA requires bottled and tap water meet the same standards

Bottled vs. Tap Water