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The study of nutritional supplements has become increasingly important within research establishments and universities throughout the world, and as the market for these products continues to grow, so does the need for comprehensive scientifically sound information about the products, their properties and potential health benefits. This second edition of Dietary Supplements & Functional Foods has been fully revised and expanded. The book looks at the accepted uses of dietary supplements and also explores the wider picture, identifying common themes and principles or particular categories of…mehr

Produktbeschreibung
The study of nutritional supplements has become increasingly important within research establishments and universities throughout the world, and as the market for these products continues to grow, so does the need for comprehensive scientifically sound information about the products, their properties and potential health benefits.
This second edition of Dietary Supplements & Functional Foods has been fully revised and expanded. The book looks at the accepted uses of dietary supplements and also explores the wider picture, identifying common themes and principles or particular categories of supplements. Much new information across the whole spectrum of this fascinating and expanding field is included, with additional material covering changes in relevant legislation, examples of superfoods, up-to-date information and informed debate concerning vitamin D, folic acid, fish oils and, antioxidants and glutamine. Several new sections have been added to this successful and well-received book, including a comprehensive overview of the analytical procedures used in the identification and quantification of bioactive substances present in supplements..
With the inclusion of textboxes and summaries, this book is now even more user-friendly and ideal for course use, as well as being an invaluable reference for those working in the health sciences, and in the supplements industry. Dietitians, nutritionists, food scientists and food technologists will all find much of great use and value within its covers. All universities and research establishments where these subjects are studied and taught should have copies of this excellent new edition on their shelves.
  • Produktdetails
  • Verlag: John Wiley & Sons
  • Seitenzahl: 330
  • Erscheinungstermin: 8. April 2011
  • Englisch
  • Abmessung: 244mm x 170mm x 17mm
  • Gewicht: 572g
  • ISBN-13: 9781444332407
  • ISBN-10: 1444332406
  • Artikelnr.: 29959056
Inhaltsangabe
Preface. 1 An Overview of Dietary Supplements and Functional Foods. The evolving rationale for supplement use. Adequacy and the prevention of deficiency diseases. Diet as a means to prevent chronic, age and wealth
related diseases. Supplements versus dietary change for the prevention of chronic disease. Dietary supplements and natural remedies as a safer alternative to modern medicine? Defining dietary supplements. Legal regulation of dietary supplements(the UK and EU perspective). Medicines. Non
medicinal supplements. Borderline products. Health claims. Vitamin and mineral supplements. Regulation in the USA. Supplement quality. The market for supplements. Reasons for taking supplements. To compensate for a perceived or potential inadequacy in the diet. To compensate for some perceived increase in need or defective handling of a nutrient. To treat or prevent non
deficiency diseases. To improve athletic performance. Do supplements and functional foods work? Testing their effectiveness and safety. Measures of outcome. The two main investigative approaches. The observational approach. The experimental approach. Testing: A summing up. 2 An Overview of Micronutrient Adequacy. Introduction and scope of the chapter. Judging the adequacy of micronutrient intakes. A note about American standards. Recommended daily allowances on food labels. Measuring an individual's micronutrient status using clinical or biochemical observations. Micronutrient adequacy of the UK population. Young and middle
aged adults. Children. Pregnant women. Lactating women. The elderly. Athletes in training. Summing up. 3 The Individual Vitamins. The fat
soluble vitamins. Vitamin A (retinol). Vitamin D (cholecalciferol). Vitamin E (±
tocopherol). Vitamin K (phylloquinone). The water
soluble vitamins. Vitamin B1(thiamin). Vitamin B2(riboflavin). Vitamin B3 (niacin). Vitamin B6 (pyridoxine). Vitamin B12 (cobalamins). Folic acid (folate, folacin). Biotin. Pantothenic acid. Vitamin C (ascorbic acid). 4 The Minerals. Calcium. Chromium. Copper. Fluoride. Iodine. Iron. Magnesium. Manganese. Molybdenum. Potassium. Selenium. Zinc. 5 Free Radicals and Antioxidants. Introduction. The free radical or oxidant theory of disease. Mechanisms for limiting free radical damage. Diets with plentiful supplies of (antioxidant
rich) fruits and vegetables are associated with a reduced risk of chronic diseases. What evidence is there that antioxidant supplements are beneficial or at least harmless? Antioxidants and pre
eclampsia in pregnancy. Vitamin E and dementia. Summing up the case for antioxidant supplements. 6 Natural Fats and Oils. The nature of fats, oils and other lipids. Why are we preoccupied with the balance of our dietary fats? Why are some fatty acids called 'essential'? Essential fatty acids and eicosanoid production. Fish oil supplements. What are the suggested benefits of taking fish (liver) oil supplements? Fish oil supplements and heart disease: Evidence of effectiveness. Evidence relating fish oils to inflammatory conditions such as arthritis. Fish oils, brain and behaviour. Evening primrose oil and other sources of GLA. Flaxseed oil. Conjugated linoleic acid (CLA). ²
sitosterol and the phytosterols. 7 Non
Essential 'Nutrients' that are Used as Dietary Supplements. General rationale. Glucosamine and chondroitin sulphate. Nature and functions of cartilage. Supplement forms and origins. Rationale for use and evidence of effectiveness. s
Adenosyl
methionine (SAMe). Nature and functions. Rationale for use and evidence of efficacy. Lecithin and choline. L
carnitine. Nature and synthesis of L
carnitine. Functions of carnitine. Circumstances that may increase carnitine requirements. Use of carnitine supplements. Carnitine supplements: Conclusions. Creatine. Nature and origins of body creatine. Functions of creatine. Rationale and evidence for the use of creatine supplements. Coenzyme Q10 (ubiquinone). Nature and sources of coenzyme Q10. Functions of coenzyme Q10. Rationale and evidence for the use of coenzyme Q10 supplements. Alpha(±)
lipoic acid. Nature and sources of body alpha
lipoic acid. Functions of alpha
lipoic acid. Rationale and evidence for the use of alpha
lipoic acid supplements. Methylsulphonylmethane (MSM). Nature and sources of MSM. MSM as a supplement. 8 Natural Products and Extracts. Scope of the chapter. Secondary plant metabolites. Terpenoids. Phenolic compounds (phenols and polyphenols). Nitrogen
containing alkaloids. Sulphur
containing plant secondary metabolites. How might these secondary metabolites reduce the risk of chronic disease? Natural extracts as a source of drugs. The individual plant and animal extracts. Agnus castus. Aloe vera. Bee products. Chitosan. Echinacea. Garlic. Ginger. Ginkgo biloba. Ginseng. Guarana. Kelp. Milk thistle. Saw palmetto. Spirulina and chlorella. St John's wort (Hypericum perforatum). Tea extracts. 9 Functional Foods. Introduction and scope of the chapter. A note about 'superfoods'. Phytosterols and phytostanols. Phyto
oestrogens. Probiotics, prebiotics and synbiotics. Definitions and scale of usage. The lactic acid bacteria. Breast milk and the 'bifidus factor'. What makes a good probiotic? Suggested benefits of probiotics. Effect of probiotics on incidence and severity of diarrhoea. Possible effects of probiotics on the risk of developing bowel cancer. Probiotics and the prevention of childhood eczema. Prebiotics. Synbiotics. References. Index.