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Phytochemicals. What Does Phytochemical Mean ?. Phyto = Plants Phytochemical= Components in plants that may provide health benefits. Concept of Free Radicals - The Evil Side of Oxygen. Form of oxygen that can damage our bodies

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Presentation Transcript
what does phytochemical mean
What DoesPhytochemical Mean?
  • Phyto = Plants
  • Phytochemical= Components in plants that may provide health benefits
concept of free radicals the evil side of oxygen
Concept of Free Radicals - The Evil Side of Oxygen
  • Form of oxygen that can damage our bodies
  • If not neutralized into “good oxygen,” carry molecular hot potatoes :
    • advance aging
    • work against the immune system
    • play role in development of chronic and degenerative diseases
free radicals
Free Radicals
  • Are very unstable
  • React quickly with other compounds, doing cell and body damage
  • Once produced, they multiply unless neutralized by antioxidants or other free-radical scavengers.
what sets off chemical reactions that produce free radicals
What Sets Off Chemical Reactions That Produce Free Radicals?
  • Radiation from sunlight
  • Ozone trapped in the atmosphere
  • Air pollution
  • Tobacco smoke
  • Carcinogens
  • Asbestos
what sets off chemical reactions that produce free radicals1
What Sets Off Chemical Reactions That Produce Free Radicals?
  • Infections
  • Physical trauma
  • Stress
  • Toxic pesticides and herbicides
  • Alcohol
Antioxidants prevent or treat
    • cancer
    • diabetes
    • heart disease
    • high blood pressure
health benefits
Health Benefits
  • Prevention of disease shown in populations having a high consumption of fruits and vegetables
major groups of phytochemicals
Major Groups of Phytochemicals
  • Indoles
  • Thioallyl Derivatives
  • Antioxidants (Beta carotene, Vitamin C and Vitamin E)
  • Phenolic compounds
  • Flavonoids
  • Food sources - Broccoli , cabbage and cauliflower
  • Health benefit - Cancer prevention and maintain healthy cells
thioallyl derivatives
Thioallyl Derivatives
  • Food sources:
    • Garlic
    • Leeks
    • Onions
  • Pungent smell
  • Destroyed by heat (Saute instead of slow cooking)
health benefits of thioallyl derivatives
Health Benefits of Thioallyl Derivatives
  • Boost immune system
  • Increase enzyme to help get rid of carcinogens
  • Anti-tumor properties
  • Reduce serum cholesterol
  • Prevent blood clots
  • Beta carotene
  • Vitamin C
  • Vitamin E
antioxidant beta carotene
Antioxidant - Beta Carotene
  • Food sources:
    • carrots
    • sweet potatoes
    • oranges
    • cantaloupe
    • tomatoes
    • dark green leafy vegetables
health benefits of the antioxidant beta carotene
Health Benefits of the Antioxidant Beta Carotene
  • Cancer prevention
  • Regulator of immune responses
  • May lower heart disease and stroke risk
antioxidant vitamin c
Antioxidant Vitamin C
  • Food sources:
    • Citrus fruit
    • Tomatoes
    • Peppers
    • Broccoli
    • Melons
    • Strawberries
smokers and antioxidant vitamin c
Smokers and Antioxidant Vitamin C
  • Smokers have a higher requirement for Vitamin C to combat the increased oxidative stress
antioxidant vitamin e
Antioxidant Vitamin E
  • Food sources:
    • Oil (60%)
    • Fruits and veggies, esp. dark green leafy (10%)
    • Grains
    • Nuts and Seeds
caution for smokers
Caution for Smokers
  • Some studies showed that

Vitamin E or beta carotene supplements may be harmful to smokers

phenolic compounds
Phenolic Compounds
  • Food sources:
    • most fruits and vegetables
    • tea (green and black)
health benefits1
Health Benefits
  • Anti-tumor
  • Anti-cancerous effect
  • Food sources:
    • soy
    • apples
    • onions
health benefits of flavonoids
Health benefits of Flavonoids
  • Prevent cancer
  • Prevent bone loss
  • Antioxidant properties
educating the public on phytochemicals
Educating the Public on Phytochemicals
  • More research is needed before supplement recommendation
  • Information provided should be sound and scientifically based.
educating the public on phytochemicals cont
Educating the Public on Phytochemicals,cont.
  • Should emphasize the importance of getting nutrients from variety of foods, not stressing getting certain nutrients through pills
  • Follow Food Guide Pyramid recommendation


Prepared by :

Diane Linder, EdD, LDN,RD, Specialist( EFNEP Coordinator)

Sara Seals, PhD. Assoc. Specialist

( Nutrition and Health )