focus on phytochemicals. key terms functional foods provide health benefits beyond basic nutrition...
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Focus OnPHYTOCHEMICALS
Key Terms Functional Foods
Provide health benefits beyond basic nutrition
Phytochemicals Health-promoting substances found in plant foods
Zoochemicals Health-promoting substances found in animal foods
Copyright 2012, John Wiley & Sons Canada, Ltd.
Examples and Benefits of Functional Foods
Copyright 2012, John Wiley & Sons Canada, Ltd.
Phytochemicals in the Modern Diet Carotenoids
Yellow-orange pigments found in plants (and in some fish and birds)
Antioxidants; some have vitamin A activity Major examples:
-Carotene, -carotene, -cryptoxanthin, lycopene, lutein, zeaxanthin
Suggested health benefits: Reduced risk of certain cancers, cardiovascular disease, and
age-related eye diseases
Copyright 2012, John Wiley & Sons Canada, Ltd.
Phytochemicals in the Modern Diet Flavonoids
Blue, red or yellow pigments found in vegetables, fruits, wine, grape juice, chocolate and tea
Strong antioxidants Some also have anti-inflammatory and anticancer
properties Suggested health benefits:
Protecting against cancer and cardiovascular diseases
Copyright 2012, John Wiley & Sons Canada, Ltd.
Phytochemicals in the Modern Diet Indoles and Alliums
Sulfur-containing phytochemicals Rich in cruciferous vegetables and garlic, onions,
leeks and shallots Stimulating the activity of enzymes that detoxify
carcinogens Indoles inactivate estrogen. Alliums boost the activity of cancer-destroying
enzymes and prevent gut bacteria from converting nitrates to nitrites.
Copyright 2012, John Wiley & Sons Canada, Ltd.
Phytochemicals in the Modern Diet Phytoestrogens and Other Plant
Hormones Phytoestrogens include isoflavones and lignins, found
in soybeans, flaxseed and barley. Suggested functions and health benefits: Blocking estrogen receptors May protect against certain cancers (such as breast
cancer) and osteoporosis
Copyright 2012, John Wiley & Sons Canada, Ltd.
Copyright 2012, John Wiley & Sons Canada, Ltd.
Copyright 2012, John Wiley & Sons Canada, Ltd.
Choosing a Phytochemical-Rich Diet Eat more fruits and vegetables
Follow guidelines Choose fruits and vegetables with every color of the
rainbow
Copyright 2012, John Wiley & Sons Canada, Ltd.
Choosing a Phytochemical-Rich Diet Make half your grains whole.
Whole grains deliver as many, if not more, phytochemicals and antioxidants than do fruits and vegetables.
Synergistic effect of the wide variety of nutrients and phytochemicals found in whole grains
Copyright 2012, John Wiley & Sons Canada, Ltd.
Choosing a Phytochemical-Rich Diet Choose plant proteins.
Phytochemical-rich beans, peas, nuts and seeds are also good sources of protein.
May add nutraceuticals, designer foods, phytochemical supplements, and phytochemical-fortified foods with caution: They may only contain a fraction of the many
phytochemicals found in natural foods. No interaction between different substances Doses may be too small or too large.
Copyright 2012, John Wiley & Sons Canada, Ltd.
Summary: Tips to Increase Phytochemicals
Copyright 2012, John Wiley & Sons Canada, Ltd.
Copyright
Copyright © 2012 John Wiley & Sons Canada, Ltd.
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Copyright 2012, John Wiley & Sons Canada, Ltd.