Outline of presentation Macronutrient Requirements in South East Asia (SEA) Focus on Protein Requirements of Infants and Young Children Dietary recommendations in SEA Chronology of development Harmonization of SEA RDAs Seminar on Re-Assessing Macronutrient Needs Requirement, Quality and Health Impact Latest protein requirement recommendations in SEA Acceptable Macronutrient Distribution Ranges Health implications Concluding remarks Geok Lin Khor PhD Emeritus Professor, Universiti Putra Malaysia 3-4 May 2017 Bangkok Khor GL 2017 Chronology of RDA development in SEA been a long-standing activity of FAO and WHO perhaps the longest existing technical activity. The first FAO Expert Committee on requirements met in Washington, DC, in 1949, only four years Vietnam (V) 1996 Protein requirements. Report of the FAO Committee. Rome, Food and Agriculture Organization of the United Nations, 1957 (FAO Nutritional Studies, No. 16). Protein requirements. Report of a Joint FAO/WHO Expert Group, Geneva, World Health Organization, 1965 (WHO Technical Report Series, No. 301). Energy and protein requirements. Report of a Joint FAO/WHO ad hoc Expert Committee. Geneva, World Health Organization, 1973 (WHO Technical Report Series, No. 522). 3 V 2007 Indonesia (I) 1994 Thailand (T) 1989 T 2003 2007) Khor GL 2017 2 V 2016 I 2014 Singapore (S) 1988 Philippines (P) 1941 1947 1953 1960 1965 1970 1940 1960 1970 Malaysia (M) 1975 M 2005 P 1989 1975 1980 1985 1990 Khor GL 2017 P 2002 1995 2000 M 2017 P 2015 2005 2010 2015 4 Current Status of Recommended Dietary Allowances in Southeast Asia: A Regional Overview. E-SiongTee Nutrition Reviews, 56: SIO-S18 , 1998 RDA Harmonization in SEA Table 2. RDAs in selected Southeast countries: Protein 1997: ILSI SEA called for a better understanding of RDAs in the region 1998: Agreed on a framework for harmonization The goal of the harmonized RDAs was to obtain consensus among the SEA countries on: 1. Definition of RDAs for SEA 2. Minimum list of core nutrients 3. Population age groupings 4. Reference body weights Protein quality: NPU = 70 for Malaysia, Philippines, Singapore; protein usage = 60 for Vietnam; digestibility of 85% for Thailand; Khor GL 2017 5 Figure: Reference body weights: SEA-RDAs (2005) vs FAO/WHO (2002) 2005 Khor GL 2017 6 Table 2.1 Population groupings and reference body weights within the SEA-RDA framework Population Groups Reference Body Weight (Kg) Age categories Reference body weights for infants and children up to 9 years based on the NCHS 50th percentile weights for male; reference weights for older children assumed between young adults and 7-9 years. K GL 2017 7 The SEA-RDA population groupings are consistent with those in FAO/WHO (2002) Khor GL 2017 8 SEA RDAs (2005) Recommendation for Protein Requirement (based on 1985 FAO/WHO/UNU recommendations and *reference body weights) Protein (gram per day) High quality protein diet Adjusted for 80% protein quality Adjusted for 70% protein quality 0-5m 6-11m 11 14 1-3yrs 4-6yrs 7-9yrs 16 21 27 20 26 34 23 29 39 Boys yrs 10-12 13-14 15 16-18 34 45 45 49 42 56 56 62 48 64 64 71 Girls yrs 10-12 13-14 15 16-18 35 41 41 40 44 51 51 50 Khor GL 2017 50 58 58 57 * Shown in previous slide Among the primary objectives of this Report was : To review, revise and update protein and amino acid requirements for all age groups, and for women during pregnancy and lactation Protein Requirements of infants and children KG Dewy, G Beaton, C Fjel, B Lönnerdal and P Reeds Eur J Clin Nutr 50 (Suppl 1): S93-S95, 1996 Published in Eur J Clin Nutr 50 (Suppl 1): 1996 NS Scrimshaw, JC Waterlow, B Schürch (Editors) Dewey et al. (1996) re-examined the assumptions and evidence for the derivation of factorial estimates of protein requirements for the breastfed infant from birth to 6 months Khor GL 2017 Report of a Joint FAO/WHO/UNU Expert Consultation. World Health Organization Tech Rep Ser 935. WHO: Geneva, 2007.10 Khor GL 2017 9 Energy and Protein Requirements Proceedings of the International Dietary Energy Consultative Group (IDECG) Workshop, 1994; Energy and protein requirements knowledge and field experience have now moved far enough forward that a review of the expert opinion 11 FAO/WHO/UNU 1985 IDECG, 1996 1. Estimated protein intakes of breastfed infants, based on total N x 6.25 A substantial proportion (20-27%) of human milk N is from nonprotein N (NPN): urea, creatine , choline, nucleotides. 2. Used NCHS reference for body weights of infants , but majority of whom were bottle-fed Estimated protein intake from exclusively breastfed infants aged 1-6 months (Butte et al, 1984; Heinig et al, 1993) 3. Calculated protein intake from breast milk from 2 studies Under estimation owing to loss of insensible water not accounted for during test weighing of infant Khor GL 2017 12 Dewey et al. (1996) suggested that the requirement values for breastfed infants should be 10 25% lower than those in the 1985 report. Safe level of protein intake for infants less than 6 months of age 2007 WHO/FAO/UNU 1985 This was achieved by adopting a lower maintenance value (90 mg nitrogen/kg per day) and replacing the 50% increase in the protein allowance for growth to cover day-to-day variation with an increase in the coefficient of variation for growth. The growth rates assumed were derived from the WHO 1994 breastfed pooled dataset (WHO 1994) The efficiency of utilization of dietary protein for growth was again assumed to be 70%. Khor GL 2017 13 Khor GL 2017 14 Chronology of RDA development in SEA Vietnam (V) 1996 V 2007 Indonesia (I) 1994 Thailand (T) 1989 T 2003 V 2016 I 2014 Singapore (S) 1988 Philippines (P) 1941 1947 1953 1960 1965 1970 Khor GL 2017 15 1940 1960 1970 Malaysia (M) 1975 M 2005 P 1989 1975 1980 1985 1990 Khor GL 2017 P 2002 1995 2000 M 2017 P 2015 2005 2010 2015 16 Latest recommendations for protein requirement in SEA (g/day) Indonesia 2014 Philippines 2015 Vietnam 2016 References for body weight and height of children in latest dietary recommendations in SEA Malaysia 2017 0-6 mo 12 0-5 mo 9m 8f 0-5 mo 11 0-5 mo 8 7-12 18 6-11 17 m 15 f 6-8 18 6-11 10 9-11 20 1-3 yrs 26 1-2 yrs 18 m 17 f 1-2 yrs 20 m 19 f 1-3 yrs 12 4-6 35 3-5 22 m 21 f 3-5 25 4-6 16 7-9 49 6-9 30 m 29 f 6-7 33 m 32 f 7-9 23 8-9 40 10-12 56 m 60 f 10-12 43 m 46 f 10-11 50 m 48 f 10-12 30 m 31 f 13-15 72 m 69 f 13-15 62 m 57 f 12-14 65 m 60 f 13-15 45 m 42 f 16-18 66 m 59 f 16-18 73 m 61 f 15-19 74 m 63 f 16-19 51 m 42 f Khor GL 2017 17 The reference weights for infants and children up to 5 years are the median values of the WHO Multicentre Growth Reference Study Group (2006) for weight-for-age to achieve growth potential. The median weight-for-height and median height-based BMI were used for the 6-9 years and 10-18 years, respectively, using the median height of Filipino child with normal nutritional status (2013, NNS). Khor GL 2017 18 References for body weight and height of children in latest dietary recommendations in SEA Country References Indonesia Median body (2014) weight and height of Indonesian with normal nutritional status Riset Kesehatan Dasar (Riskesdas) 2007 and 2010 Malaysia (2017) WHO weight-for-age median Based on NHMS 2015: Equivalent to WHO BMI-for-age median Equivalent to BMI=22.0 0-9 years: 10-18 years: Adults Acceptable Macronutrient Distribution Range (AMDR) 19 Khor GL 2017 20 Acceptable Macronutrient Distribution Range Fats, carbohydrates, and proteins can substitute for one energy needs. References Protein Total Fat Carbohydrate Percent of total energy Acceptable ranges of intake for each of these energy sources. termed Acceptable Macronutrient Distribution Ranges (AMDRs), are defined as a range of intake for a particular energy source that is associated with reduced risk of chronic diseases, while providing adequate intakes of essential nutrients. These ranges are also based on adequate energy intake and physical activity to maintain energy IOM (2006) 1-3 years 4-18 years Adults 5-20 10-30 10-35 30-40 25-35 20-35 45-65 45-65 45-65 EFSA (2012) 10-35 20-35 45-65 WHO (2013) 10-15 20-35 50-75 2006 (IOM, 2006) Khor GL 2017 21 Acceptable Macronutrient Distribution Range Protein Total Fat Carbohydrate Percent of total energy Philippines (2015) 0-5 mo 6-11 mo 1-2 yrs 3-18 yrs 5 8-15 6-15 6-15 40-60 30-40 25-35 15-30 35-55 45-62 50-69 55-79 -5 months was based on actual ratios of protein EARs and energy requirements; For older infants and children upper limit of 15% was in consideration of Koletzko et al (2009) - infants receiving follow-on formula with protein content at 17.6% of energy had increased risk of OW & obesity in thefirst Khor GL 2017 23 2013 Khor GL 2017 22 Macronutrient distribution of dietary intake of rural and urban children aged 0.5 - 12 years (SEANUTS, 2013) 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 35.6 33.2 33.7 32 Fat 52 12.5 Indonesia n=7211 48.1 50.7 53.4 Carbohydrate Protein 18.6 Vietnam n=2872 15.6 Thailand n=3119 14.6 Malaysia n=3542 WHO (2013) AMDR: 10-15% protein; 20-35% fat; 50-75% carbohydrate Khor GL 2017 24 Scaling up nutrition (SUN). SUN Movement annual progress report. September 2015 (http://scalingupnutrition.org/wp-content/uploads/2015/10/SUN Macronutrient intake patterns of young children in SEA: health implications Southeast Asia Cambodia Indonesia Myanmar Philippines Vietnam Khor GL 2017 25 Khor GL 2017 26 Khor GL 2017 28 Stunting in children < 5 years in SEA in 2015 50 45 40 35 30 Global stunting trend 1990- 2015 39.6 35.7 32.7 25 Lao PDR 43.8 Cambodia 40.9 29.4 26.2 20 23.2 Malaysia 17.1 Thailand 16.3 15 10 5 0 Indonesia 36.4 Myanmar 35.1 Philippines 30.3 Vietnam 23.3 Brunei 1990 1995 2000 Khor GL 2017 2005 2010 2.3 2015 27 Childhood stunting: a global perspective M de Onis and F Branca. Maternal & Child Nutrition 2016, 12 (Suppl. 1): 12 26 In most SEA countries, stunting and underweight remain the main forms of malnutrition in children below five 50% 45 40 35 30 25 20 15 10 5 0 wasting stunting underweight overweight Stunting is a chronic form of undernutrition that results from some combination of prenatal and postnatal linear growth faltering. Infants who are born with a low birth weight are particularly vulnerable to frequent infections and malnutrition, which result in linear growth faltering and poor cognitive development. The severe irreversible physical and neurocognitive damage that accompanies stunted growth is a major barrier to human development. (WHO Health Statistics, 2016; Malaysia NHMS 2016)29 Khor GL 2017 CAUSES WHO Childhood Stunting Conceptual Framework (Stewart et al., 2013) Household & Family Factors Inadequate Complementary Feeding Poor quality foods *Poor micronutrient quality *Low dietary diversity *Low intake of animal source foods Breastfeeding Infection Inadequate Food & practices water safety Khor GL 2017 30 The Impact of Nutritional Interventions beyond the First 2 Years of Life on Linear Growth: A Systematic Review and Meta-Analysis Roberts, JL and AD Stein; Adv Nutr 2017;8:323 36. The aim of this analysis was to evaluate the effectiveness of several nutrition-based interventions, specifically iron, zinc, calcium, iodine, vitamin A, multiple (> 2) micronutrients, protein, and food, at improving growth in children above 2 y of age. Zinc (mean effect size: 0.15; 95% CI: 0.06, 0.24), vitamin A (0.05; 95% CI: 0.01, 0.09), multiple micronutrients (0.26; 95% CI: 0.13, 0.39), and protein (0.68; 95% CI: 0.30, 1.05) had significant positive effects on linear growth, with baseline height-for-age z score as a significant inverse predictor of the effect size. Khor GL 2017 31 Iron, calcium, iodine, and food-based interventions had no significant effect on growth. Khor GL 2017 32 Dietary reference Intakes (DRIs): Acceptable Macronutrient Distribution Ranges Range (percent of energy) Children 1-3 y Adults Dietary fats Goals (% total energy ) Total fat 15-30 Saturated FA s AMDR of Fatty Acids N-6 PUFA (linoleic acid) N-3 PUFA (alpha- linolenic acid) Khor GL 2017 Children 4-18 y Ranges of population nutrient intake goals (WHO, 2013) 33 PUFAs < 10 6-10 5-10 N-6 PUFAs 5-8 0.6-1.2 N-3 PUFAs 1-2 Trans FA <1 MUFAs By difference Khor GL 2017 34 Association between maternal intake of n-6 to n-3 fatty acid ratio during pregnancy and infant neurodevelopment at 6 months of age: results of the MOCEH cohort study Hyejin Kim et al Nutrition J 16:23, 2017 The recommended dietary n-6/n-3 PUFAs ranges from 5:1 15:1 in Europe and from 4:1 10:1 in the United States and South Korea Conclusions: Both the maternal dietary n-6/n-3 PUFAs and LA/ALA intake were significantly associated with the mental and psychomotor development of infants at 6 months of age. Thus, maintaining low n-6/n-3 PUFAs and LA/ALA is encouraged for women during pregnancy. Recommended Nutrient Intakes for Malaysia 2017 General population (% of total energy) N-6 PUFA (linoleic acid) 3-7 N-3 PUFA (ALA+EPA+DHA) 0.3 1.2 Saturated fatty acids Less than 10 MUFA Trans fatty acids 12-15 Khor GL 2017 Less than 1 35 Khor GL 2017 36 Recommendations In both adults and children, WHO recommends reducing the intake of *free sugars to less than 10% of total energy intake (strong recommendation). the intake of free sugars to below 5% of total energy intake (conditional recommendation). 2015 (2015) *Free sugars include monosaccharides and disaccharides added to foods and beverages by the manufacturer, cook or consumer, and sugars naturally present in honey, syrups, fruit juices and fruit juice concentrates. Khor GL 2017 37 Mei Chung, Tufts Univ. ILSI Regional Symp Sugar and Sweeteners, Oct 2015, Khor GL 2017 38 Southeast Asia : wide ranging economic and health status Countries in SEA according to income status Concluding remarks Singapore 39 Life expectancy at birth (2015) Years Male Female 55,150 80 86 Brunei 37,320 77 81 Malaysia Upper middle 11,120 73 77 Thailand 5,780 71 78 Indonesia Low middle 3,630 67 71 Philippines 3,500 65 72 Vietnam 1,890 71 81 Lao PDR 1,660 65 68 Myanmar 1,270 64 68 1,020 67 71 Cambodia Khor GL 2017 High GNI per capita USD (World Bank, 2015) Low Khor GL 2017 (WHO 2014; 2015) 40 Challenges in addressing high prevalence of stunting in children Information Gaps in SEA Evidence of dietary intake of children meeting the recommended quantity and quality of protein? Evidence of health benefits in infants and young children provided with the recommended n-6/n-3 PUFAs ratios? Evidence of the applications of the Acceptable Macronutrient Distribution Range values in improving the nutritional status of young children Gaps in DRI development in the region - Recommendations of nutrient requirements are not available or outdated in some countries Khor GL 2017 41 Factorial values for infant protein requirements and growth for breastfed infants at difference stages of lactation assumption that human milk from a healthy well-nourished mother can support the protein requirements for infants for the first 6 months of life. 2007 Khor GL 2017 43 Khor GL 2017 42
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