Linda M. Castell is Visiting Research Fellow at Green Templeton College, University of Oxford, UK. In 1990, she joined Professor Eric Newsholme's Cellular Nutrition Research Group (CNRG) at Oxford, working on amino acids and immunology; and, after his retirement in 1996, she took over directing the CNRG. She has published several chapters and 30 papers. She initiated the A-Z series on nutritional supplements for athletes in the British Journal of Sports Medicine (2009-2013)

Samantha J. Stear is a consultant with a PhD in Biomedical Science and more than 25 years' experience in the health, nutrition, sport and exercise sectors. Sam established the English Institute of Sport's Performance Nutrition Service and has individually worked with Olympic medallists and world record holders. Sam has published three books, more than 50 papers and more than 150 consumer magazine articles

Louise M. Burke is a sports dietitian with more than 35 years of experience, serving for the past 25 years as Head of Sports Nutrition at the Australian Institute of Sport, and more recently as Chair in Sports Nutrition at the Australian Catholic University in Melbourne, Australia. Louise has published more than 20 books and more than 200 papers

Introduction Amino Acids ¿ - Aminobutyric Acid (GABA) Androstenedione Antioxidants Arginine Arnica Aspartame Aspartate and Asparagine D-aspartic acid (D-AA) Bee Pollen Beta-Alanine and Carnosine Boron Branched-chain amino acids Caffeine Calcium Carbohydrate supplements L-Carnitine Chinese Herbs Chlorogenic acids (CGA) Choline bitartrate and Acetylcholine Chondroitin and Glucosamine Chromium Picolinate Cissus Quadrangularis (CQ) L-Citrulline Co-enzyme Q10 (ubiquinone) Colostrum Conjugated Linoleic Acid (CLA) Copper Cordyceps (Ophiocordyceps) Creatine Cysteine and Cystine Cytochrome C Dehydroepiandrosterone (DHEA) Dihydroxyacetone Phosphate (DHAP) and Pyruvate 1,3-Dimethylethylamine (DMAA) Dimethylglycine (DMG) Echinacea Electrolytes Ephedra Fatty Acids Ferulic Acid & Gamma-Oryzanol Fish oils Flavonoids Folate Garlic Ginger Ginkgo Ginseng Glandulars Glucuronolactone Glutamine Glutathione and Glutamate Glycerol Glycine Green Tea Guarana Histidine-containing dipeptides ¿-hydroxyisocaproic acid (HICA) b -Hydroxy b -methylbutyrate (HMB) ¿-Hydroxybutyrate and ¿-Butyrolactone Hydroxycut Inosine Inositol Iron Jack3D a -Ketoglutarate (AKG) a -Ketoisocaproate (KIC) Ketone bodies Lecithin Leptin Leucine Linoleic acid Gamma-linolenic acid (GLA) Alpha-Lipoic Acid Magnesium Medium Chain Triglycerides Melamine Melatonin Methionine Methylsulphonylmethane (MSM) Multiple Transportable Carbohydrates (MTC) N-Acetylcysteine (NAC) Nitrate Nootkatone Octacosanol and Policosanol Ornithine Oxyelite Pro Pangamic acid Papain Peptides Phenylalanine Phlogenzym and WobenzymPhosphate Phosphatidylserine Pinitol Plant Sterols Potassium (K+) Prebiotics Probiotics Prohormones ProlineProtein Pycnogenol Resveratrol Rhodiola Rosea Ribose Royal Jelly Selenium Serine Smilax (Sarsaparilla) Sodium Sodium Bicarbonate and Sodium Citrate Spirulina Succinate Sucrose Taurine Theobromine and Theophylline Threonine Tribulus terrestris Tryptophan Tyrosine Valine Vanadium Vitamins A, C and E Vitamin B Vitamin D Vitamin K Water (oxygenated) Weight Loss Supplements: GeneralWeight Loss Supplements: Herbal Wheat Germ Oil (WGO) Whey Protein Wolfberry (Goji Berry) Yerba Maté Yohimbine Yucca ZMA (Zinc Magnesium Aspartate) Zinc In Practice Conclusion