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Food for Health

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Food for Health Barbara H. Ingham Assistant Professor Extension Food Scientist Food for Health Pharmacy Foods Medical Foods Functional Foods Functional Food ... – PowerPoint PPT presentation

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Title: Food for Health


1
Food for Health
  • Barbara H. Ingham
  • Assistant Professor
  • Extension Food Scientist

2
Food for Health
  • Pharmacy Foods
  • Medical Foods
  • Functional Foods

3
Functional Food
A food product that has been clinically shown to
maintain human health or to promote human
well-being better than similar traditional foods
4
Functional Foods
  • Foods and ingredients
  • that may play a role in
  • optimal health

5
Phytochemicals
  • Medical edibles from plants

6
Medicinal agents from plants
  • 25 pharmaceutical agents are extracted from
    plants
  • 3.2 billion people use plants as primary source
    of medicine
  • Can food plants be used to prevent or fight
    disease?

7
Plant-based Products
  • Cancer Fighting Foods
  • Broccoli, garlic, onions
  • Soy
  • Tea
  • Tomatoes and tomato sauce
  • Spinach and kale
  • Cranberries

8
Sulfur-Containing Foods(Allium Compounds-
Sulforaphane)
  • Garlic and Onions
  • Broccoli

9
Sulforaphane
  • Healing Benefits Inhibit cancer cells, lower
    cholesterol, protect against heart disease
  • Suggested Amount
  • 1-2 garlic cloves a day
  • Let garlic stand for 10 minutes before heating

10
Soy
  • Phytoestrogens and Isoflavones

11
Levels of Phytoestrogens
  • mg/kg
  • Green beans, fresh, raw 2
  • Lima beans, raw, dry 15
  • Green split peas, dry 73
  • Alfalfa sprouts 47
  • Soybeans 340
  • Tofu 150
  • Soy flour 230

12
SOY
  • Decreased risk of breast and ovarian cancer
  • Decreased atherosclerosis
  • Lower blood cholesterol
  • 4 oz tofu 8 oz soy milk per day

13
Green Tea(catechins)
  • Protective effects against cancer and heart
    disease

14
Green Tea- antioxidants
  • Fluoride-prevention of tooth decay
  • Caffeine-less than coffee
  • Phytochemicals- stop the activity of
    cell-damaging free radicals
  • Dark chocolate too!
  • Suggested amount-
  • 1 cup of tea/day

15
Tomato-Based Products
  • Lycopene Providing the red color in tomato
    products, and cancer protection too!

16
Lycopene Content of Foods
  • mg/100 g wet wt
  • Tomatoes, fresh 2.0
  • Tomatoes, canned 3.7
  • Tomato sauce 6.2
  • Tomato paste 5.4-15.0
  • Tomato juice 5.0-12
  • Pizza sauce 13
  • Ketchup 12
  • Grapefruit, pink 4
  • Watermelon 5

17
Lycopene- antioxidant
  • Protection against breast cancer, cancer of the
    GI tract, and skin cancer
  • Protection against cardiovascular disease
  • Suggested amount 10 servings per week

18
Spinach and Kale (Lutein)
  • Food sources kale, spinach, collards
  • Antioxidant that filters UV rays
  • May protect against cataracts and macular
    degeneration
  • May protect against colon cancer
  • Suggested amount ½ C cooked greens or 2 C. raw
    per day

19
Lutein-Rich Vegetables
  • Vegetable Lutein (mg/100g)
  • Raw carrot 0.26
  • Kale 21.9
  • Raw spinach 10.0
  • Broccoli 1.90
  • Green peas 1.70
  • Leaf lettuce 1.80
  • Collard greens 16.3
  • Also in oranges, celery, tomatoes.

20
Cranberries(Anthocyanins)
  • Protection against heart disease
  • Protection against age-related mental decline
  • Less pain and inflammation of diseases like
    arthritis and gout
  • Foods berries, cherries, grapes
  • Suggested amount 1 pint

21
Margarine(Over-the-Top Functional Food)
  • Benecol and Take Control
  • Stanol and sterol ester-based (plant-based
    cholesterol)
  • 50 of the population has high cholesterol
  • 10 reduction in serum cholesterol in 2 weeks
  • Block absorption of LDL in the blood
  • May reduce risk of CHD
  • Additional benefit if used w/ medication
  • Recommended 2 servings/day

22
Animal-Based Products
  • Cancer Fighting Foods
  • Yogurt
  • CLA
  • Conjugated Linoleic Acid

23
Yogurt- the ultimate functional food
  • Probiotics- products that contain
    health-promoting bacteria
  • Lactic acid bacteria- slow or prevent the
    initiation of tumors

24
Yogurt
  • Calcium
  • Protein
  • B vitamins
  • Minerals
  • (Bacterial supplements have none of these added
    benefits)

25
CLA- Conjugated Linoleic Acid
  • One of the most potent naturally occurring
    anti-carcinogens
  • A component of animal fat
  • Found in dairy products and meat
  • Suppresses heart disease in rabbits

26
CLA
  • Physiological Effects
  • Animals eat less
  • Increased body protein
  • Decreased body fat
  • (re-partitioning agent)

27
CLA- Downside Risks
  • Associated with fatty foods
  • Link to cholesterol
  • Association of some fats and cancer(?)

28
Safety of Functional Foods
  • Complicated inter-play between bioactive
    compounds and other substances
  • Lack of research on some ingredients
  • Supplements vs foods
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