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A perspective on food energy standards for nutrition labelling

  • Geoffrey Livesey (a1)
Abstract

Food energy values used for nutrition labelling and other purposes are traditionally based on the metabolisable energy (ME) standard, which has recent support from Warwick & Baines (2000). By reference to current practices and published data, the present review critically examines the ME standard and support for it. Theoretical and experimental evidence on the validity of ME and alternatives are considered. ME and alternatives are applied to 1189 foods to assess outcomes. The potential impact of implementing a better standard in food labelling, documentation of energy requirements and food tables, and its impact on users including consumers, trade and professionals, are also examined. Since 1987 twenty-two expert reviews, reports and regulatory documents have fully or partly dropped the ME standard. The principal reason given is that ME only approximates energy supply by nutrients, particularly fermentable carbohydrates. ME has been replaced by net metabolisable energy (NME), which accounts for the efficiency of fuel utilisation in metabolism. Data collated from modern indirect calorimetry studies in human subjects show NME to be valid and applicable to each source of food energy, not just carbohydrates. NME is robust; two independent approaches give almost identical results (human calorimetry and calculation of free energy or net ATP yield) and these approaches are well supported by studies in animals. By contrast, the theoretical basis of ME is totally flawed. ME incompletely represents the energy balance equation, with substantial energy losses in a missing term. In using NME factors an account is made of frequent over-approximations by the ME system, up to 25 % of the NME for individual foods among 1189 foods in British tables, particularly low-energy-density traditional foods. A new simple general factor system is possible based on NME, yet the minimal experimental methodology is no more than that required for ME. By accounting for unavailable carbohydrate the new factor system appears as specific to foods as the USA's food-specific Atwater system, while it is more representative of energy supply from food components. The NME content of foods is readily calculable as the sum from fat (37 kJ/g), protein (13 kJ/g), available carbohydrate (16 kJ/g), fully-fermentable carbohydrate (8 kJ/g), alcohol (26 kJ/g) and other components. Obstacles to the implementation of NME appear to be subjective and minor. In conclusion, the ME standard is at best an approximate surrogate for NME, and inadequately approximates food energy values for the purpose of informing the consumer about the impact on energy balance of the energy supply for equal intake of individual foods. NME is superior to ME for nutrition labelling and other purposes.

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Corresponding author
Corresponding author: Dr Geoffrey Livesey, fax +44 1953 600218, email glivesey@inlogic.co.uk
References
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Agricultural Research Council(1980) The Nutrient Requirements of Ruminant Livestock.Farnham Royal, Berks: Commonwealth Agricultural Bureau.
Agriculture and Agri-Food Canada(1996) Guide to Food Labelling and Advertising. Nutrient Content Claims, 25 March issue. Ottawa, Ont: Health Canada.
Akanji OA, Bruce MA & Frayn JN (1989) Effect of acetate infusion on energy expenditure and substrate oxidation rates in non-diabetic and diabetic subjects. European Journal of Clinical Nutrition 43, 107115.
Allison RG & Senti FR (1983) A Perspective on the Atwater System of Food Energy Assessment.Bethesda, MD: LifeSciences Research Office, Federation of American Societies for Experimental Biology.
Altman DG (1991) Practical Statistics for Medical Research. London: Chapman & Hall.
Atwater WO & Bryant AP (1990) 12th Annual Report (1899) of the Storrs, CT Agricultural Experimental Station, 73110.Storrs, CT: Storrs Experimental Station.
Australian National Codex Delegation (1998) Proposal to define the basis for derivation of energy conversion factors in the CODEX guidelines on nutrition labelling. CODEX Committee on Nutrition and Foods for Special Dietary Uses (CCNFSDU), Session 21, 21-25Sept, Berlin, Germany. Rome: FAO/WHO.
Australia New Zealand Food Authority (1991) Australia New Zealand Food Authority Act, 1991.
Australia New Zealand Food Authority (1998) Australia New Zealand Food Authority. Service Charter.Canberra, Australia: ANZFA.
Australia New Zealand Food Authority (1999 a) Review of the Provisions for Low-joule Foods and Carbohydrate Modified Foods. Canberra, Australia: ANZFA.
Australia New Zealand Food Authority (1999 b) Derivation of Energy Factors. Proposal P177. Caberra, Australia: ANZFA.
Australia New Zealand Food Authority (1999 c) Inquiry Report: Derivation of Energy Factors. Caberra, Australia: ANZFA.
Bär A (1990) Factorial calculation model for the estimation of the physiological caloric value of polyols In Caloric Evaluation of Carbohydrates pp209379.[N Hosoya, editors]. Tokyo: The Japanese Association of Dietetic and Enriched Foods.
Bässler KH (1989) Die energetische Nutzung von Zuckeraustauschstoffen, eine übersicht mit Schwerpunkt auf den Disaccharidalkoholen (The energy efficiency of sugar substitutes, a general survey with particular emphasis on disaccharide alcohols) Ernährungsunshau 36, 395401.
Bernier JJ & Pascal G (1990) Valeur energetique des polyols (sucres-alcohols). The energy value of polyols (sugar alcohols). Medicine et Nutrition 26, 221238.
Bingham SA (1991) Limitations of the various methods for collecting dietary intake data Annals of Nutrition and Metabolism 35, 117127.
Blaak EE & Saris WHM (1996) Post-prandial thermogenesis and substrate utilisation after ingestion of different dietary carbohydrates. Metabolism 45, 12351242.
Blaxter KB (1967) The Energy Metabolism of Ruminants, 2nd impression. London: Hutchinson.
Blaxter KB (1989) Energy Metabolism in Animals and Man. Cambridge: Cambridge University Press, pp. 254294.
British Nutrition Foundation(1990) Energy from complex carbohydrates BNF Task Force Report on Complex Carbohydrates in Foods.London: Chapman & Hall, pp. 5666.
Brooks SPJ (1995) Report on the Energy Value of Sugar Alcohols. Ottawa, Ont∴: Ministry of Health.
Brown D, Livesey G & Dauncey MJ (1991) Influence of mild cold on the components of 24 hour thermogenesis in rats. Journal of Applied Physiology 441, 137154.
Brown JC & Livesey G (1994) Energy balance and expenditure while consuming guar gum at various fat intakes and ambient temperatures. American Journal of Clinical Nutrition 60, 956964.
Buemann B, Toubro S & Astrup A (1998) D-Tagatose, a stereoisomer of D-fructose, increases hydrogen production in humans without affecting 24-h energy expenditure or respiratory exchange ratio. Journal of Nutrition 128, 14811486.
Buskirk ER, Thompson RH, Moore R & Whedon GD (1960) Human energy expenditure studies in the National Institute of Arthritis and Metabolic Diseases metabolic chamber. I. Interaction of cold environment and specific dynamic effect. II. Sleep. American Journal of Clinical Nutrition 8, 602613.
Castiglia-Delavaud C, Verdier E, Besle JM, Vernet J, Boirie Y, Beaufrere B, De Baynast R & Vermorel M (1988) Net energy value of non-starch polysaccharide isolates (sugarbeet fibre and commercial inulin) and their impact on nutrient digestive utilization in healthy human subjects. British Journal of Nutrition 80, 343352.
Codex (1991) Codex standard for formula foods for use in weight control diets. Codex Alimentarius Standard 181.
Cummings JH, Roberfroid MB, and members of the Paris Carbohydrate Group, Anderson H, Barth C, Ferro-Luzzi A, Ghoos Y, Hermonsen K, James WPT, Korver O, Larion D, Pascal G & Vorgen AGS (1997) A new look at dietary carbohydrate: chemistry, physiology and health. European Journal of Clinical Nutrition 51, 417423.
Dauncey MJ (1981) Influence of mild cold on 24-h energy expenditure, resting metabolism and diet-induced thermogenesis. British Journal of Nutrition 45, 257268.
Dauncey MJ & Bingham SA (1983) Dependence of 24 h energy expenditure in man on the composition of the nutrient intake. British Journal of Nutrition 50, 113.
Department of Health (1995) Obesity: Reversing the Increasing Problem of Obesity in England. A Report from the Nutrition and Physical Activity Task Force. London: Department of Health.
Dutch Nutrition Council (1987) The Energy Values of Polyols. Recommendations of the Committee on Polyols. The Hague,The Netherlands: Nutrition Council.
Elia M & Livesey G (1988) Theory and validity of indirect calorimetry during net lipid synthesis. American Journal of Clinical Nutrition 47, 591607.
Ellwood KC (1995) Methods available to estimate the energy values of sugar alcohols. American Journal of Clinical Nutrition 62(Suppl)., 1169s1174s.
European Communities (1990) Directive 90/496/EEC: Nutrition labelling for foodstuffs. Official Journal of the European Communities L276, 4044.
European Communities (1997) Regulation 258/97: Novel foods and novel food ingredients. Official Journal of the European Communities L43, 17.
Ferrannini E, Natali A, Brandi LS, Bonadonna R, de Kreutzenberg SV, DelPrato S & Santoro D (1993) Metabolic and thermic effects of lactate infusion in humans. American Journal of Physiology 265, E504-E512.
Flatt JP (1978) The biochemistry of energy expenditure.In Recent Advances in Obesity Research, pp.211228 [GA Brey, editors]. London: Newman.
Flatt JP (1985) Energetics of intermediary metabolism. In Substrate and Energy Metabolism in Man, pp.5669 [JS Garrow & D Halliday, editors]. London: J. Libbey.
Food and Agriculture Organization (1998) Carbohydrates in Human Nutrition. FAO Food and Nutrition Paper no. 66. Rome: FAO.
Food and Drug Administration (1993) Nutrition labelling of foodstuffs. Title 21 of the Code of Federal Regulations (21CR). Federal Register 53, 2175.
Food and Drug Administration (1995) FDA Letters of Agreement, 1994–1995 (cited in Livesey et al. 2000).
Fukagawa NK, Veirs H & Langlehoh G (1995) Acute effects of fructose and glucose ingestion with and without caffeine in young and old humans. Metabolism 44, 630638.
Heijnen MLA, Deurenberg P, vanAmelsvoort JMM & Beynen AC (1995) Replacement of digestible by resistant starch lowers diet-induced thermogenesis in healthy men. British Journal of Nutrition 73, 423432.
Hill JO, Peters JC, Reed GW, Schundt DG, Sharp T & Greene HL (1991) Nutrient balance in humans: effect of diet composition. American Journal of Clinical Nutrition 54, 1017.
Hoffmann L, Klein M & Schiemann R (1986) Untersuchungen an ratten zür ährstoffabhängigkeit des energieerhaltungsbedarfs (Investigation in rats into feed dependence of maintenance energy requirement). Animal Nutrition 11, 981993.
Hungate RE (1966) The Rumen and its Microbes. New York: Academic Press.
Hurni M, Burnand B, Pittet P & Jequier E (1982) Metabolic effects of a high-carbohydrate low-fat diet in man, measured over 24 h in a respiratory chamber. British Journal of Nutrition 47, 3343.
Independent Nutrition Logic (2000) http://www.inlogic.co.uk.
Japanese Ministry of Health and Welfare (1991) Official Notice: Evaluation of the Energy Value of Indigestible Carbohydrates in Nutritive Foods. Docket no. Ei-shin 71. Tokyo: JapaneseMinistry of Health and Welfare.
Johnson RE & Kark RM (1947) Environment and food intake in men. Science 105, 378.
Jørgensen H & Lærke HN (1998) The Influence of D-Tagatose on the Digestibility and Energy Metabolism in Pigs. Foulum,Denmark: Foulum Research Centre.
Jørgensen H, Larsen T, Zhao X-Q & Eggum BO (1997) The energy value of short-chain fatty acids infused into the caecum of pigs. British Journal of Nutrition 77, 745756.
Karst H, Steiniger J, Noack R & Steglich D-D (1984) Diet-induced thermogenesis in man: Thermic effects of single proteins, carbohydrates and fats depending on their energy amount. Annals of Nutrition and Metabolism 28, 245252.
Kleiber M (1975) The Fire of Life: an Introduction to Animal Energetics. Huntingdon, NY: Robert E. Krieger.
Klesges RC, Mealer CZ & Klesges LM (1994) Effects of alcohol intake on resting energy expenditure in young women social drinkers. American Journal of Clinical Nutrition 59, 805809.
Lichtenbelt WD, van M, Mensink RP & Westerterp KR (1997) The effect of fat composition of the diet on energy metabolism. Zeitschrift fur Ernährungswissenschaft 36, 303305.
Life Science Research Office (1967) Present Knowledge of Factors Determining the Balance between the Energy Value of Ingested Food and the Energy Cost of Basal Plus Work Metabolism in Adults Bethesda, MD: Life Science Research Office, Federation of American Societies for Experimental Biology.
Life Science Research Office (1994) The Evaluation of the Energy of Certain Sugar Alcohols Used as Food Ingredients. Bethesda,MD: Life Science Research Office, Federation of American Societies for Experimental Biology.
Life Science Research Office (1999) Evaluation of the Net Energy of Maltitol. Bethesda, MD: Life Science Research Office Federation of American Societies for Experimental Biology.
Livesey G (1984) The energy equivalents of ATP and the energy values of food proteins and fats. British Journal of Nutrition 51, 1518.
Livesey G (1985) Mitochondrial uncoupling and the isodynamic equivalents of protein, fat and carbohydrate at the level of biochemical energy provision. British Journal of Nutrition 53, 381389.
Livesey G (1987 a) ATP values of protein, fats and carbohydrates In Recent Advances in Obesity Research: V. Proceedings of 5th International Congress on Obesity 1986, Jerusalem, pp. 131143.London: John Libbey.
Livesey G (1987 b) Energy and protein requirements: the 1985 report of the 1981 joint FAO/WHO/UNU expert consultation. British Nutrition Foundation Bulletin 51, 138149.
Livesey G (1990 a) Energy values of unavailable carbohydrate and diets: an inquiry and analysis. American Journal of Clinical Nutrition 51, 617637.
Livesey G (1990 b) The impact of the concentration and dose of Palatinit® in foods and diets on energy value. Food Sciences and Nutrition 42F, 223243.
Livesey G (1991 a) Calculating the energy values of foods: towards new empirical formulae based on diets with varied intakes of unavailable complex carbohydrates. European Journal of Clinical Nutrition 45, 112.
Livesey G (1991 b) Determinants of energy density with conventional foods and artificial feeds. Proceedings of the Nutrition Society 50, 371382.
Livesey G (1992) Energy values of dietary fibre and sugar alcohols for man. Nutrition Research Reviews 5, 6184.
Livesey G (1994) Energy value of resistant starch. In Proceedings of the Concluding Plenary Meeting of EURESTA. pp.5662. Brussels, Belgium: Commission of the European Communities.
Livesey G (1995 a) Metabolizable energy of macronutrients. American Journal of Clinical Nutrition 62, 1135S-1142S.
Livesey G (1995 b) Impact of complex carbohydrates on energy balance. European Journal of Clinical Nutrition 49, s89–s96.
Livesey G (1999 a) Comments on the Draft ANZFA Standard 1.2.8. Nutrition Labelling. Canberra: Australia New Zealand Food Authority.
Livesey G (1999 b) Food energy: an international perspective. Chapter I. In Sweeteners and Lite Foods. Sydney: IBC Conferences.
Livesey G, Buss DH, Coussement P, Edwards DG, Howlett J, Jonas DA, Kleiner JE, Muller I & Sentko A (2000) Suitability of traditional energy values for novel foods and food ingredients. Food Control 11, 249289.
Livesey G, Elia M (1995) Short-chain fatty acids as an energy source in the colon: metabolism and clinical implications. In Physiological and Clinical Aspects of Short-chain Fatty Acids, pp.472482.[Cummings JH, Rombeau LJ & Sakata T editors]. Cambridge: Cambridge University Press.
Livesey G, Smith T, Eggum BO, Tetens IH, Nyman M, Roberfroid M, Delzenne N, Schweizer TF & Decombaz J (1995) Determination of digestible energy values and fermentabilities of dietary fibre supplements: a European interlaboratory study in vivo. British Journal of Nutrition 74, 289302.
Livesey G, Wilson PDG, Roe MA, Faulks RM, Oram LM, Brown JC, Eagles J, Greenwood RH & Kennedy H (1998) Splanchnic retention of intraduodenal and intrajejunal glucose in healthy adults. American Journal of Physiology 38, E709-E716.
MacDonald I (1984) Differences in dietary-induced thermogenesis following the ingestion of various carbohydrates. Annals of Nutrition and Metabolism 28, 226230.
McCance RA, Widdowson EM, (1991) The Composition of Foods.5th ed. [AA Paul & Southgate DAT, editors]. London: H.M. Stationery Office.
Merrill AL & Watt BK (1973) Energy Value of Foods: Basis and Derivation. Agriculture Handbook no. 74. Washington, DC:ARS, US Department of Agriculture.
Miller DS & Judd PA (1984) The metabolisable energy values of foods. Journal of the Science of Food and Agriculture 35, 111116.
Mollis C, Flourié B, Ouarne F, Gailing M-F, Lartigue S, Guilert A, Bornet F & Galmiche JP (1996) Digestion, excretion, and energy value of fructooligosaccharides in healthy humans. American Journal of Clinical Nutrition 64, 324328.
Nair KS, Halliday D & Garrow JS (1983) Thermic response to isoenergetic protein, carbohydrate or fat meals in lean and obese subjects. Clinical Science 65, 307312.
National Research Council(1981) Nutritional Energetics of Domestic Animals: and Glossary of Terms, 2nd revision. Washington, DC: National Academy Press.
Newsholm E & Leech AR (1983) Biochemistry for the Medical Sciences. Chichester, West Sussex: John Wiley and Son.
Poppitt SD (1995) Energy density of diets and obesity. International Journal of Obesity 19, Suppl. 5, s20s26.
Poppitt SD, Livesey G & Elia M (1998) Energy expenditure and net substrate utilization in men ingesting usual and high amounts of nonstarch polysaccharide. American Journal of Clinical Nutrition 68, 820826.
Prentice AM (1995) Alcohol and obesity. International Journal of Obesity 19, s44s50.
Prentice AM (1996) Do calories from alcohol contribute to obesity? British Nutrition Foundation Bulletin 21, 4548.
Prosky L, Asp N-G, Schweizer TF, DeVries JW & Furda I (1998) Determination of insoluble, soluble and total dietary fiber in foods and food products: Inter-laboratory study. Journal of Official Analytical Chemists 71, 10171023.
Raben A & Astrup A (1996) Manipulating carbohydrate content and sources in obesity prone subjects: effects on energy expenditure and macronutrient balance. International Journal of Obesity 20, s24s30.
Raben A, Macdonald I & Astrup A (1997) Replacement of dietary fat by sucrose or starch: effects on 14 d. ad libitum energy intake, energy expenditure and body weight in formerly obese and never obese subjects International Journal of Obesity 21, 846859.
Roberfroid M, Gibson GR & Dezenne N (1993) The biochemistry of oligofructose, a nondigestible fibre: An approach to calculate its caloric value. Nutrition Reviews 51, 137146.
Rochelle RH & Horvath SM (1969) Metabolic response to food and acute cold stress. Journal of Applied Physiology 27, 710714.
Rubner M (1902) Die Gesetz des Energieverbrauchs bei der Ernährung (The Rules of Energy Consumption in Nutrition). Leipzig, Germany: Franz Deuticke.
Rumpler WV, Baer DJ & Rhodes DG (1998) Energy availability from corn oil is not different than that from beef tallow in high- or low-fibre diets fed to humans. Journal of Nutrition 128, 23742382.
Rumpler WV, Seale JL, Miles CW & Bodwell CE (1991) Energy intake restriction and diet composition effect on energy expenditure in men. American Journal of Clinical Nutrition 53, 430436.
Schiemann R, Nehing K, Hoffman L, Jentsch W & Chudy A (1971) Energetische Futterbewertung und Energienermen (Assessment of Food Energy and Energy Standards). Berlin: Deutsche Landwirtschaftverlag.
Schwartz J-M, Acheson KJ, Tappy L, Piolino V, M¨ller MJ, Felber JP & Jéquier E (1992) Thermogenesis and fructose metabolism in humans. American Journal of Physiology 262, E591E598.
Schwartz J-M, Schultz Y, Froidevaux F, Acheson K, Jean-Prêtre N, Schneider H, Felber J-P & Jéquier E (1989) Thermogenesis in men and women induced by fructose vs glucose added to a meal. American Journal of Clinical Nutrition 49, 667674.
Simonson DC, Tappy L, Jequier E & Felber JP (1988) Normalisation of carbohydrate-induced thermogenesis by fructose in insulin-resistant states. American Journal of Physiology 254, E201E207.
Smith T, Brown JC & Livesey G (1998) Energy balance and thermogenesis in rats consuming non-starch polysaccharides. American Journal of Clinical Nutrition 68, 801819.
Sonko BJ, Prentice AM, Murgatroyed PR, Goldberg GR, van de Ven M & Coward WA (1994) The influence of alcohol on post-meal fat storage. American Journal of Clinical Nutrition 59, 619625.
Southgate DAT (1969) Determination of carbohydrates in foods. II. Unavailable carbohydrate. Journal of the Science of Food and Agriculture 20, 331335.
Southgate DAT (1975) Fiber and other unavailable carbohydrate effects in the diet.In Proceedings of the Western Hemisphere Congress, IV pp.51–55 [White PL & Selvet N, editors]. London: Publishing Science Group Incorporated.
Steiniger J (1983) Untersuchungen zum Tagesenergieumsatz und zur Nährungsinduzierten Thermogenese bei Adipositas (study of daily energy balance and of dietary-induced thermogenesis in adipose tissue). Dissertation, Akademie Wissenschaft, Democratic Republic of German.
Stubbs RJ, Harbron CG, Murgatroyed PR & Prentice AM (1995 a) Covert manipulation of dietary fat and energy density: effect on substrate flux and food intake in men eating ad libitum. American Journal of Clinical Nutrition 62, 316329.
Stubbs RJ, Ritz P, Coward WA & Prentice AM (1995 b) Covert manipulation of the ratio of dietary fat to carbohydrate and energy density: effect on food intake and energy balance in free living men, eating ad libitum. American Journal of Clinical Nutrition 62, 330337.
Suter PM, Schultz Y & Jequier E (1994) The effect of alcohol on fat storage in healthy subjects. New England Journal of Medicine 326, 983987.
Tappy L, Jequier E & Acheson K (1993) Thermic effect of infused amino acids in healthy human subjects and in subjects with insulin resistance. American Journal of Clinical Nutrition 57, 912916.
Thomas CD, Peters JC, Reed GW, Abumrad NN, Sun M & Hill JO (1992) Nutrient balance and energy expenditure during ad libitum feeding of high fat and high carbohydrate diets in humans. American Journal of Clinical Nutrition 55, 934942.
Valencia ME, McNeill G, Brockway JM & Smith JS (1992) The effect of environmental temperature and humidity on 24 h energy expenditure in men. British Journal of Nutrition 68, 319327.
van Es AJH (1991) Dietary energy density on using sugar alcohols as replacements for sugars. Proceedings of the Nutrition Society 50, 383390.
van Es AJH, De Groot L & Vogt JE (1986) Energy balance of eight volunteers fed on diet supplemented with either lactitol or saccharose. British Journal of Nutrition 56, 545554.
Warwick PM & Baines J (2000) Energy factors used for food labelling and other purposes should be based on a definition of metabolisable energy, not a definition of net (metabolisable) energy. British Journal of Nutrition 84, 897902.
Warwick PM & Busby R (1990) Influence of mild cold on 24 h energy expenditure in ‘normally’ clothed adults. British Journal of Nutrition 63, 481488.
Webster AJF (1978) Measurement and prediction of methane production, fermentation heat and metabolism in the tissues of the ruminant gut. In Ruminant Digestion and Feed Evaluation, pp.81–810 [D Osbourn, DE Beever & DJ Thomson, editors]. London: Agricultural Research Council.
Wolever TMS (1997) Carbohydrate Absorption and Metabolism. Joint FAO/WHO Expert Consultation on Carbohydrates in Human Nutrition. CARBOCON 18. Rome: FAO.
World Health Organization (1985) Energy and Protein Requirements. Report of a Joint FAO/WHO/UNU Expert Consulation. Technical Report Series no. 724. Geneva: WHO.
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