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Class/Components |
Source |
Claimed or Potential Benefit* |
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Carotenoids |
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Alpha-carotene |
carrots |
neutralises free radicals which damage cells |
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Beta-carotene |
fruits, vegetables |
neutralises free radicals |
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Lutein |
green vegetables |
contributes to the maintenance of a healthy vision |
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Lycopene |
tomato products |
may reduce risk of prostate cancer |
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Zeaxanthin |
eggs, citrus, corn |
contributes to the maintenance of a healthy vision |
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Collagen Hydrolysate |
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Collagen Hydrolysate |
gelatine |
may improve some osteoarthritis symptoms |
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Dietary Fibre |
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Insoluble fibre |
wheat bran |
reduces risk of breast and/or colon cancer |
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Beta glucan** |
oats |
reduces risk of cardiovascular disease |
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Soluble fibre** |
psyllium |
reduces risk of cardiovascular disease |
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Whole Grains** |
cereal grains |
reduces risk of cardiovascular disease |
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Fatty Acids |
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Omega-3 fatty acids - DHA/EPA |
tuna, fish, marine oils |
reduces risk of cardiovascular disease** and improves mental and visual functions |
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Conjugated Linoleic acid (CLA) |
cheese, meat products |
improves body composition, decreases risk of certain cancers |
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Flavonoids |
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Anthocyanidins |
fruits |
reduces risk of certain types of cancer |
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Catechins |
tea |
reduces risk of certain types of cancer |
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Flavanones |
citrus |
reduces risk of certain types of cancer |
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Flavones |
fruits/vegetables |
reduces risk of certain types of cancer |
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Glucosinolates, Indoles, Isothiocyanates |
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Sulphoraphane |
cruciferous vegetables |
reduces risk of certain types of cancer |
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Phenols |
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Caffeic acid, Ferulic acid |
fruits, vegetables, citrus |
reduce risk of degenerative diseases, heart disease, eye disease |
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Plant Sterols |
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Stanol ester** |
corn, soy, wheat |
lowers blood cholesterol levels |
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Prebiotic/Probiotics |
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Jerusalem artichokes, shallots, onion powder |
improve gastrointestinal health |
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yoghurt, dairy products |
improve gastrointestinal health, reduce bacterial diarrhoea** |
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Saponins |
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Saponins |
soybeans, soy foods, soy protein-containing foods |
lower LDL cholesterol; contain anti-cancer enzymes |
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Soy Protein |
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Soy Protein** |
soybeans and soy foods |
25 g/day reduce risk of heart disease |
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Phytoestrogens |
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Isoflavones - Daidzein, Genistein |
soybeans and soy foods |
reduce menopause symptoms |
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Lignans |
flax, rye, vegetables |
protect against heart disease and some cancers, lower LDL cholesterol, total cholesterol and triglycerides |
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Sulfides/Thiols |
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Diallyl sulfide |
onions, garlic, olives, leeks, scallions |
lowers LDL cholesterol, maintains health immune system |
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Allyl methyl trisulfide, Dithiolthiones |
cruciferous vegetables |
lowers LDL cholesterol, maintains health immune system |
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Tannins |
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Proanthocyanidins |
cranberry products, cocoa, chocolate |
improve urinary tract health, reduce risk of cardiovascular disease |
* Many of the components listed have not been tested in long-term studies using humans. Claims are often only based on laboratory research and may not be valid for all population groups.
** FDA approved health claim established for component (in the USA) or scientific valid evidence for most population groups
