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Phytochemicals

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Phytochemicals Phyto = plants Compounds in plants (other than vitamins & minerals), that protect them from pests, viruses, bacteria and excessive sun damage. – PowerPoint PPT presentation

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Title: Phytochemicals


1
Phytochemicals
  • Phyto plants
  • Compounds in plants (other than vitamins
    minerals), that protect them from pests, viruses,
    bacteria and excessive sun damage.
  • Only in plant foods. Reason why recommended to
    eat 5-9 servings of fruits veggies/day.
  • Antioxidants are phytochemicals that decrease
    free radicals.

2
Antioxidants reduce free radicals
  • Every cell needs oxygen to generate energy, but
    this process forms some unstable molecules.
  • These unstable oxygen molecules stabilize
    themselves, by stealing electrons from nearby
    molecules creating free radicals.
  • Antioxidants are the police force that minimize
    the stealing. You want enough police on the
    force to out number the thieves (free radicals).
  • Free radicals may lead to cancer, heart
    disease, memory loss impaired eyesight.

3
Antioxidant Power
  • Tufts University designed a test to measure the
    antioxidant strength of food.
  • Grind food spin, then toss in free radicals.
  • Evidence is clear - people with most antioxidant
    intake from food show the fewest effects of
    aging.
  • Strive for 3,500 antioxidant points/day
    (serving size ½ c.)

4
Tomato (189)
  • Benefits
  • Provides 80 of Americans lycopene.
  • Lycopene protects against prostate lung cancer.
  • 10 servings/week decreased prostate cancer 35.
  • Cooking frees lycopene
  • Tomato soup
  • Pasta sauce
  • Pizza sauce

5
Yellow Corn (402)
  • Benefits
  • Can help prevent loss of our sharp vision.
    Macular (retina) degeneration is the leading
    cause of blindness in elderly.

6
Orange (750)
  • Benefits
  • Promotes heart health by reducing inflammation,
    LDL cholesterol and risk of stroke.
  • Juice peel may help prevent cancer of stomach,
    mouth, lung, breast and skin.
  • Boosts the detoxifying enzymes encourages cell
    death in abnormal cells.

7
Orange Peel Study
  • Examined eating habits of 475 Arizonians
  • Those who used orange (or lemon) peels in cooking
    as little as once a month reduced their risks
    of squamous cell carcinoma (type that can spread)
    of the skin 50.

8
Broccoli (890)
  • Benefits
  • Sulforaphane is a cancer fighter Boosts the
    detoxifying enzymes encourages cell death in
    diseased cells.
  • Carcinogen exposed rats Those that received
    sulforaphane had 60 less mammary tumors.

9
Cranberries (1750)
  • Benefits
  • The tannins prevent bacteria from adhering to the
    walls of the bladder or urethra.
  • 1 cup of cranberry juice or dried cranberries are
    effective.

10
Strawberries (1540)
  • Benefits
  • Protect the aging brain from oxidative damage
  • Ellagic acid in seeds prevent tumors of the
    esophagus and colon

11
Strawberries Study
  • Put rats in 100 oxygen for 48 hours and their
    brain activity went from the equiv of 18 years to
    60 years old.
  • Fed rats for 2 months on strawberry-fortified
    diet.
  • Put strawberry fed rats in 100 oxygen for 48
    hours their brains looked normal no aging.
  • Same results with blueberries spinach.

12
Ellagic Acid Benefits
  • In lab studies shown to battle cancer by
  • Decreasing the activity of enzymes that create
    certain carcinogens
  • Boosting enzymes that package carcinogens to be
    taken out
  • Encouraging cell death in diseased cells
  • Ellagic acid in strawberry, raspberry
    blackberry seeds

13
Raspberries (1220)
  • Benefits
  • Same cancer protective compounds as strawberries
  • Most fiber of any fruit (double the fiber of
    strawberries) 8 g fiber per 1/2 cup.
  • Jamba Juice with berries!

14
Red Wine (985)
  • Benefits
  • Helps reduce LDL (bad cholesterol) oxidation
  • Red wine has the most benefits (white196 pts)
  • 5 oz/day for women
  • 10 oz/day for men.

15
Spinach (1260)
  • Benefits
  • The best food to eat for your eyes! Zeaxanthin
    lutein protect from macular (retina)
    degeneration- leading cause of blindness in the
    elderly.
  • Stops cataracts. Lens doesnt replace old cells.
  • Especially important for
  • blue eyes iris lets more damaging light in
  • people with family history

16
Kale ( 1770)
  • Benefits
  • Destroys more free radicals than any other
    vegetable!
  • Stops cataracts - similar benefits as spinach.
  • Get kale fresh it becomes bitter with age

17
Kale Spinach Study
  • Nurses Health Study with over 77,000 nurses over
    age 45 followed for 12 years
  • Ate spinach 2/week 35 less cataracts
  • Ate kale at least 1/week 40 less cataracts

18
Blueberries (2400)
  • Benefits
  • Destroys more free radicals than any other
    fruit!
  • Blueberries and strawberries have been called the
    brain-berries because they reverse some aspects
    of brain aging.
  • Eat fresh cooking can damage the antioxidant
    power

19
Blueberries Study
  • Study with aging rats (6570 in human years) with
    decline in memory, motor skills and balance.
  • Two months fed a diet with 1-2 blueberries
    (equiv ½-1 c blueberries).
  • Rat Olympics Showed improvement in
    coordination and balance. Kept balance twice as
    long as control group.
  • How? Developed new brain cells quicker or
    receptors on brain cells communicated better.
  • Same results with strawberries spinach

20
Supplements
  • Studies show the health benefits are in food, not
    supplements.
  • Beta-carotene
  • Two major studies on nearly 50,000 people found
    it increased lung cancer rates in smokers.
  • Vitamin E
  • Study with 10,000 older men women. After 4 ½
    years it failed to cut the risk of heart disease
    or stroke.

21
Phytochemicals!
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