Magnesium Absorption in Humans

Total Page:16

File Type:pdf, Size:1020Kb

Magnesium Absorption in Humans Research Collection Doctoral Thesis Magnesium absorption in humans Author(s): Bohn, Torsten Publication Date: 2003 Permanent Link: https://doi.org/10.3929/ethz-a-004523459 Rights / License: In Copyright - Non-Commercial Use Permitted This page was generated automatically upon download from the ETH Zurich Research Collection. For more information please consult the Terms of use. ETH Library Diss. ETH No. 14930 Magnesium Absorption in Humans A dissertation submitted to the Swiss Federal Institute of Technology Zurich for the degree of Doctor of Natural Sciences presented by Torsten Bohn Staatlich geprüfter Lebensmittelchemiker University Frankfurt, Germany born 07.01.1972 citizen of Germany accepted on the recommendation of Prof. Dr. R.F. Hurrell, examiner Dr. L. Davidsson, co-examiner Dr. P. Kastenmayer, co-examiner 2003 Table of contents Acknowledgements ........................................................................................7 Summary..........................................................................................................9 Zusammenfassung .......................................................................................13 Introduction ...................................................................................................17 1. Literature review .......................................................................................20 1.1. Chemical properties of Mg and historical background ............................. 20 1.2. Mg in the human body.................................................................................. 21 1.2.1. Body partition of Mg................................................................................... 21 1.2.2. Physiological functions of Mg .................................................................... 23 1.2.3. Mg homeostasis......................................................................................... 24 1.2.3.1. Mg bioavailability, retention, status, and balance ................................. 24 1.2.3.2. Mg absorption....................................................................................... 25 1.2.3.3. Measuring Mg apparent and true absorption ........................................ 27 1.2.3.4. Mg excretion ......................................................................................... 27 1.2.3.5. Hormonal influences on Mg absorption and excretion.......................... 28 1.3. Mg and diet.................................................................................................... 30 1.3.1. Recommended dietary intake of Mg .......................................................... 30 1.3.2. Dietary Mg intake....................................................................................... 31 1.3.3. Mg content in food sources........................................................................ 33 2 1.4. Mg intake and Mg status and associations with health concerns............ 36 1.4.1. Osteoporosis.............................................................................................. 36 1.4.2. Diabetes mellitus type II............................................................................. 37 1.4.3. Cardiovascular diseases............................................................................ 39 1.4.4. Hypertension and stroke............................................................................ 41 1.5. Factors influencing Mg absorption ............................................................. 43 1.5.1. Overview.................................................................................................... 43 1.5.2. Physical factors.......................................................................................... 44 1.5.3. Type of Mg salt .......................................................................................... 45 1.5.4. Dietary factors influencing Mg absorption.................................................. 48 1.5.4.1. Proteins ................................................................................................ 48 1.5.4.2. Fat ........................................................................................................ 49 1.5.4.3. Dietary fibre and carbohydrates............................................................ 51 1.5.4.3.1. Insoluble fibre .................................................................................. 51 1.5.4.3.2. Soluble fibre..................................................................................... 53 1.5.4.3.2.1. Hemicellulose, pectin, and gums................................................ 54 1.5.4.3.2.2. Oligo(fructo)saccharides............................................................. 55 1.5.4.3.2.3. Resistant starch.......................................................................... 56 1.5.4.3.2.4. Lactose and lactulose................................................................. 58 1.5.4.4. Minerals and trace elements................................................................. 59 1.5.4.4.1. Calcium and phosphorus................................................................. 60 1.5.4.4.2. Sodium and potassium .................................................................... 62 1.5.4.5. Vitamin D .............................................................................................. 62 1.5.4.6. Phytic acid ............................................................................................ 63 1.5.4.7. Oxalic acid ............................................................................................ 66 3 1.5.4.8. Polyphenols .......................................................................................... 68 1.5.4.9. Chlorophyll............................................................................................ 69 1.6. Effects of dietary compounds on Mg excretion ......................................... 70 1.6.1. Ethanol ...................................................................................................... 70 1.6.2. Caffeine ..................................................................................................... 71 1.6.3. Anions and proteins ................................................................................... 72 1.7. Methods to study Mg absorption and metabolism .................................... 73 1.7.1. Overview.................................................................................................... 73 1.7.2. In vitro methods ......................................................................................... 74 1.7.3. Chemical balance technique...................................................................... 75 1.7.4. Extrinsic and intrinsic isotopic labels.......................................................... 76 1.7.5. Studies using radioactive isotopes............................................................. 79 1.7.6. Studies using stable isotopes .................................................................... 81 1.7.6.1. Overview............................................................................................... 81 1.7.6.2. Faecal monitoring to determine apparent Mg absorption...................... 86 1.7.6.3. Faecal monitoring for estimating true Mg absorption............................ 89 1.7.6.4. Urinary monitoring ................................................................................ 93 1.7.6.5. Tissue retention .................................................................................... 95 1.7.6.6. Plasma deconvolution method.............................................................. 97 1.7.7. Kinetic modelling........................................................................................ 99 1.7.8. Methods to determine Mg status.............................................................. 101 1.8. Use of stable isotope labels to determine Mg absorption....................... 102 1.8.1. Introduction.............................................................................................. 102 1.8.2. Quantification of Mg isotopic labels in a sample based on isotopic ratios 104 1.8.2.1. Single isotope techniques................................................................... 104 4 1.8.2.2. Double isotope techniques ................................................................. 106 1.8.3. Quantification of Mg isotopic labels in a sample based on isotopic abundabundances ............................................................................................. 109 1.8.3.1. Single isotope techniques................................................................... 109 1.8.3.2. Double isotope techniques ................................................................. 110 1.8.4. Sample preparation for Mg isotopic analysis ........................................... 112 1.8.5. Mg elemental analysis ............................................................................. 115 1.8.6. Mg isotopic analysis................................................................................. 116 1.8.7. Isotopic analysis by mass spectrometric techniques ............................... 117 1.8.7.1. Introduction......................................................................................... 117 1.8.7.2. Analytical techniques used for Mg isotopic analysis in the past.......... 119 1.8.7.3. TIMS................................................................................................... 120 1.8.7.4. ICP-MS ..............................................................................................
Recommended publications
  • Chapter 1 Definitions and Classifications for Fruit and Vegetables
    Chapter 1 Definitions and classifications for fruit and vegetables In the broadest sense, the botani- Botanical and culinary cal term vegetable refers to any plant, definitions edible or not, including trees, bushes, vines and vascular plants, and Botanical definitions distinguishes plant material from ani- Broadly, the botanical term fruit refers mal material and from inorganic to the mature ovary of a plant, matter. There are two slightly different including its seeds, covering and botanical definitions for the term any closely connected tissue, without vegetable as it relates to food. any consideration of whether these According to one, a vegetable is a are edible. As related to food, the plant cultivated for its edible part(s); IT botanical term fruit refers to the edible M according to the other, a vegetable is part of a plant that consists of the the edible part(s) of a plant, such as seeds and surrounding tissues. This the stems and stalk (celery), root includes fleshy fruits (such as blue- (carrot), tuber (potato), bulb (onion), berries, cantaloupe, poach, pumpkin, leaves (spinach, lettuce), flower (globe tomato) and dry fruits, where the artichoke), fruit (apple, cucumber, ripened ovary wall becomes papery, pumpkin, strawberries, tomato) or leathery, or woody as with cereal seeds (beans, peas). The latter grains, pulses (mature beans and definition includes fruits as a subset of peas) and nuts. vegetables. Definition of fruit and vegetables applicable in epidemiological studies, Fruit and vegetables Edible plant foods excluding
    [Show full text]
  • Vegetable Nutrition
    Basic Vegetable Gardening Lesson 14: Vegetable Nutrition Lesson Summary: Members will design a poster to promote the nutritional value of a fruit or vegetable. They will explain their poster and “teach” the benefits with the whole group. Intended Learning Outcomes: Members will learn about the nutrition of different fruits and vegetables. Length: 50 minutes Materials: One piece of paper (A4 or larger) for each pair Pencils Colored pencils, markers, chalk or paint (optional) Vegetable flash cards Information on vegetable nutrition – such as the Teachers’ Manual or Pocket Guide Background: An important part of gardening is to grow fruits and vegetables that give nutrition and health to us and our families. Lesson Steps 1. (5 minutes) – Introduction Welcome the members and discuss the current state of the garden. Is there produce that needs to be harvested? Are there any other garden tasks that need to be discussed? 2. (20 minutes) – Make posters to encourage members to eat fruits and vegetables. Explain that today the members will be learning about the nutrition of a variety of fruits and vegetables. They will work in pairs to make a poster about one fruit or vegetable. The poster should include all of the important nutritional information about the fruit or vegetable they choose. Members may look at the Pocket Guide, Teachers’ Manual, or other resources to find out more information about many different types of produce. The posters members make should have the name of the fruit or vegetable at the top of the poster, a drawing of the produce, and information about the health benefits of that produce.
    [Show full text]
  • Effect of Molybdenum Rate on Yield and Quality of Lettuce, Escarole, and Curly Endive Grown in a Floating System
    agronomy Article Effect of Molybdenum Rate on Yield and Quality of Lettuce, Escarole, and Curly Endive Grown in a Floating System Alessandra Moncada, Alessandro Miceli *, Leo Sabatino, Giovanni Iapichino, Fabio D’Anna and Filippo Vetrano Dipartimento Scienze Agrarie, Alimentari e Forestali, Università di Palermo, Viale delle Scienze 4, 90128 Palermo, Italy; [email protected] (A.M.); [email protected] (L.S.); [email protected] (G.I.); [email protected] (F.D.); fi[email protected] (F.V.) * Correspondence: [email protected]; Tel.: +39-091-2386-2219 Received: 29 June 2018; Accepted: 27 August 2018; Published: 1 September 2018 Abstract: Molybdenum (Mo) is required in enzymes involved in a number of different metabolic processes, and is crucial for the survival of plants and animals. The influence of nutrient solutions containing four levels of molybdenum (0, 0.5, 1.5, and 3.0 µmol/L) on growth, yield, and quality of lettuce, escarole, and curly endive grown in a hydroponic floating system was evaluated. Biometric, nutrient, and quality analyses were conducted to assess the response of each species to Mo. The results demonstrated that molybdenum is essential for harvesting marketable plants. Lettuce, escarole, and curly endive plants differed significantly in their response to molybdenum fertilization. The increase of Mo concentration in the nutrient solution was not harmful for plants and had no influence on yield and morphological traits of the leafy vegetables; however, it significantly affected some quality characteristics. Mo fertilization raised the nutritional quality by increasing ascorbic acid content up to 320.2, 139.0, and 102.1 mg kg−1 FW (fresh weight), and reducing nitrate content down to 1039.2, 1047.3, and 1181.2 mg kg−1 FW for lettuce, escarole, and curly endive, respectively.
    [Show full text]
  • Ultrastructure of Cells and Microanalysis in Malus Domestica Borkh. 'Szampion' Fruit in Relation to Varied Calcium Foliar Fe
    molecules Article Ultrastructure of Cells and Microanalysis in Malus domestica Borkh. ‘Szampion’ Fruit in Relation to Varied Calcium Foliar Feeding Piotr Kowalik 1, Tomasz Lipa 1 , Zenia Michałoj´c 1 and Mirosława Chwil 2,* 1 Institute of Horticulture Production, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland; [email protected] (P.K.); [email protected] (T.L.); [email protected] (Z.M.) 2 Department of Botany and Plant Physiology, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland * Correspondence: [email protected] Received: 18 August 2020; Accepted: 8 October 2020; Published: 11 October 2020 Abstract: Calcium is one of the most poorly reutilized nutrients. Its deficiencies cause various physiological disturbances and, consequently, reduce the quantity and quality of yields. Reduced content of Ca2+ ions in cells leads to development of, e.g., bitter pit in apples. Efficient and instantaneous mitigation of Ca2+ deficiencies is provided by foliar feeding. There are no detailed data on the effect of foliar feeding with various calcium forms on the cell structure or on the microanalysis and mapping of this element in apple fruit cells. Therefore, we carried out comparative studies of the ultrastructure of epidermis and hypodermis cells, to assess the content and distribution of calcium in the cell wall, cytoplasmic membrane, cytoplasm, and precipitates of Malus domestica Borkh. ‘Szampion’ fruit exposed to four Ca treatments, including the control with no additional Ca supplementation (I) and foliar applications of Ca(NO3)2 (II), CaCl2 (III), and Ca chelated with EDTA (IV).
    [Show full text]
  • The Impact of Mineral Nutrients in Food Crops on Global Human Health
    Plant and Soil 247: 83–90, 2002. 83 © 2002 Kluwer Academic Publishers. Printed in the Netherlands. The impact of mineral nutrients in food crops on global human health Ross. M. Welch USDA, ARS, U.S. Plant, Soil and Nutrition Laboratory, Cornell University, Tower Road, Ithaca, NY 14853, USA (E-mail: [email protected]) Key words: food quality, food systems, human nutrition, global nutrition, malnutrition, micronutrients, mineral nutrition, nutrient deficiencies, plant nutrition Abstract Nutrient sufficiency is the basis of good health, productive lives and longevity for everyone. Nutrient availability to people is primarily determined by the output of foods produced from agricultural systems. If agricultural systems fail to provide enough food diversity and quantity to satisfy all the nutrients essential to human life, people will suffer, societies will deteriorate and national development efforts will stagnate. Importantly, plant foods provide most of the nutrients that feed the developing world. Unfortunately, as a result of population pressures, many global food systems are not currently providing enough micronutrients to assure adequate micronutrient intakes for all people. This has resulted in an increasing prevalence of micronutrient deficiencies (e.g., iron deficiency, vitamin A deficiency, and iodine deficiency disorders) that now afflicts over three billion people globally mostly among resource-poor women, infants and children in developing countries. The consequences of micronutrient malnutri- tion are profound and alarming for human existence. Agricultural approaches to finding sustainable solutions to this problem are urgently needed. This review presents some ways in which plant nutritionists can contribute to preventing micronutrient malnutrition in sustainable ways. Introduction • Vitamin A deficiency can lead to poor night vis- ion, eye lesions and, in severe cases, perman- Humans are dependent on consuming enough diverse ent blindness; increased illness and death from foods to provide all the required nutrients to sus- infections.
    [Show full text]
  • Beta-Carotene at a GLANCE
    Beta-Carotene AT A GLANCE Introduction Beta-carotene is a member of the carotenoid family, which are highly pigmented (red, orange, yellow), fat- soluble compounds naturally present in many fruits, grains, oils, and vegetables. Among the naturally occurring carotenoids that can be converted to vitamin A in the human body, so-called ‘provitamin A carotenoids’, beta-carotene is the most abundant and most efficient one found in foods. Health Functions A sufficient intake of beta-carotene is important as it functions as • a safe source of vitamin A, helping the body to reach the vitamin A levels that are essential for normal growth and development, good vision and eye health, a strong immune system, and healthy skin. • an antioxidant, contributing to protecting the body against the damaging effects of free radicals, which can potentially increase the risk of developing certain diseases, including cardiovascular diseases and cancer. Disease Risk Reduction Lung cancer Studies indicate that increased intake of vegetables and fruits rich in beta-carotene may decrease the risk of lung cancer. It is not clear if these effects can be attributed to beta-carotene alone as the role of other carotenoids or vitamins from vegetables and fruits and associated dietary or life style patterns have not been adequately explored in the studies (see also Principles – The contradictory science of micronutrients). Heart disease A number of studies have associated high blood levels of dietary beta-carotene and other carotenoids with a lower risk of developing diseases that involve the heart or blood vessels (e.g., heart attack and atherosclerosis). Skin health There is evidence that beta-carotene, alone and in combination with other carotenoids or antioxidant vitamins can protect the skin from sun damage.
    [Show full text]
  • Evolution of the Intake and Nutritional Recommendations of Calcium And
    Nutr Hosp. 2015;32(5):1987-1993 ISSN 0212-1611 • CODEN NUHOEQ S.V.R. 318 Revisión Evolution of the intake and nutritional recommendations of calcium and vitamin D for the last 14 years in Spain Luis Collado Yurrita1, Graciela Grande Oyarzábal2, Elena Garicano-Vilar2, María José Ciudad Cabañas1 e Ismael San Mauro Martín1,2 1Medicine Department (Complutense University of Madrid). 2Research Centre in Nutrition & Health (CINUSA Group), Spain. Abstract EVOLUCIÓN DE LA INGESTA DE CALCIO Y VITAMINA D Y SUS RECOMENDACIONES Introduction: calcium and vitamin D are essential NUTRICIONALES EN LOS ÚLTIMOS 14 AÑOS for the human being. Scientific evidence supports the EN ESPAÑA correlation between both nutrients and their essential processes in the correct functioning of the human’s organism, which is what justifies the increase of the Resumen recommended ingestion in Spain, since 2001 until Introducción: el calcio y la vitamina D son esenciales nowadays. para el ser humano. La evidencia científica apoya la co- Objectives: to analyse the evolution on calcium and rrelación entre ambos nutrientes y sus procesos esencia- vitamin D ingestion related to the evolution of the Dietary les en el correcto funcionamiento del organismo del ser Reference Intake, as well as its repercussion, since 2001 humano, que es lo que justifica el aumento de la ingesta until nowadays. recomendada en España, desde 2001 hasta hoy en día. Design/Setting: a bibliographical search in major Objetivos: analizar la evolución en la ingesta del cal- scientific data bases, PubMed, SciELO and EMBASE cio y la vitamina D en relación con la evolución de las was conducted.
    [Show full text]
  • Lesson 14 – Vegetable Nutrition (Short)
    Basic Vegetable Gardening Short Lesson Plans Lesson 14: Vegetable Nutrition Lesson Summary: Boys and girls will make a poster teaching others about nutrition. Boys and girls will learn about the nutrition of different fruits and vegetables. Time: 40 minutes What you need: One piece of paper (A4 or larger) for each group Colored pencils, markers, chalk or paint Pocket Guide, flash cards or Teachers’ Manual on School Gardens for nutrition information Lesson Steps 1. (3 minutes) – Introduction Ask boys and girls to review the last lesson. 2. (20 minutes) – Boys and girls make nutrition posters. Have boys and girls work in small groups. Directions: 1. Choose a fruit or vegetable. 2. Read about the fruit or vegetable. 3. Make a poster with all of the important nutritional information on it. a. Write the name of the fruit or vegetable at the top of the poster. b. Draw the fruit or vegetable the middle. c. Write the health benefits of the fruit or vegetable on the poster. d. Draw what parts of the body the vegetable or fruit helps. Boys and girls may use the Pocket Guide to find out more nutrition information. The vegetable flash cards will help them draw the vegetable. 3. (10 minutes) Each group shows and explains their poster to the group. If there is time, have boys and girls group posters by the kind of health benefits the fruit or vegetable has. For example, group posters of those vegetables that give us protein. 4. (5 minutes) - Review Ask these questions: Why did we learn about vegetable and fruit nutrition today? Which vegetables and fruit are important to eat? Answer: answers vary, but a wide variety of foods provide different vitamins and minerals that the body needs.
    [Show full text]
  • Child Nutrition and Bone Health
    THIEME Review Article e67 Child Nutrition and Bone Health Lucía Redondo-Cuevas1 Jesús Sanchis-Chordà1 Pilar Codoñer-Franch1,2 1 Department of Pediatrics, Obstetrics, and Gynecology, University of Address for correspondence Lucía Redondo-Cuevas, BSc, MSc, Valencia, Valencia, Spain Department of Pediatrics, Obstetrics, and Gynecology, University of 2 Department of Pediatrics, Dr. Peset University Hospital, Valencia, Avenida de Blasco Ibáñez 15, 46010 Valencia, Spain Valencia, Spain (e-mail: [email protected]). J Child Sci 2018;8:e67–e74. Abstract Nutrition is one of the modifiable factors that contributes to bone accrual during childhood and adolescence, a critical period to prevent adult osteoporosis. Calcium and vitamin D seem to be the most important nutrients for optimal bone growth. Requirements for calcium intake are different among countries and organizations, and exact recommendations are difficult to determine since other dietary factors directly affect calcium metabolism, such as salt intake and vitamin D levels. Some scientists have suggested that the actual calcium requirements are overestimated and that increased dairy intake does not necessarily translate to better bone health in adults. Moreover, calcium can be obtained from other natural foods, such as cruciferous vegetables (turnip greens, broccoli rabe, kale, broccoli, and cabbage), endive, sesame seeds, legumes, almonds, calcium-fortified vegetable beverages, and canned sardines. Vitamin D should be obtained from food combined with appropriate sun exposure, and if that is not enough, vitamin D supplements can be used. Diets Keywords comprised a complex combination of nutrients and foods, and dietary patterns in ► nutrition children and adolescents play a key role in bone formation.
    [Show full text]
  • Healthy Properties of Endive (Cichorium Endivia L.) Depending on the Variety and Vegetative of Season
    HEALTHY PROPERTIES OF ENDIVE (CICHORIUM ENDIVIA L.) DEPENDING ON THE VARIETY AND VEGETATIVE OF SEASON Iwona Mentel*, Ewa Cieślik, Anna Sadowska-Rociek Address(es): Ph.D. Iwona Mentel University of Agriculture, Faculty of Food Technology, Department of Nutrition Technology and Consumption, 122 Balicka st, Kr aków 30-149, Poland, phone number: +48 12 662 48 32. *Corresponding author: [email protected] doi: 10.15414/jmbfs.2015.4.special3.118-121 ARTICLE INFO ABSTRACT Received 1. 12. 2014 The endive (Cichorium endivia L.) is plant belonging to Asteraceae family. It is very popular vegetable in France, Italy and Germany. Endive because of its high content healthy components can be used in prevention against a lot of diseases. Revised 6. 12. 2014 The studies were conducted on two varieties of endive: ‘Cigal’ and ‘Marconi’ during vegetative of season: 2009 and 2010. The research Accepted 7. 12. 2014 material was assessed for: dry matter, protein, dietary fibre, ash, selected minerals (Ca, Mg, K, P, Na, Fe, Zn, Mn, Cu) leve ls and Published 2. 2. 2015 antioxidants (vitamin C, phenols components) contents. Also, the calculation of the energy value, carbohydrates and the antioxidant potential of ABTS. were performed. The endive variety ‘Cigal’ was characterized higher content of calcium, magnesium, phosphorus, Short communication potassium, sodium, zinc and phenols components. While variety ‘Marconi’ contained more of dry matter, carbohydrates, dietary fibre, vitamin C, iron, copper and higher antioxidant activity. The studies showed statistically significant differences in terms of the content of components and antioxidant activity, between analysed varieties of vegetable and vegetation of season.
    [Show full text]
  • Beta-Carotene at a GLANCE Introduction
    Beta-Carotene AT A GLANCE Introduction Beta-carotene is a member of the carotenoid family, which are highly coloured (red, orange, yellow), fat-soluble pigments naturally present in many fruits, grains, oils, vegetables and in every leave where they are covered by chlorophyll. When temperature decreases in autumn, chlorophyll is destroyed and the beautiful carotenoids colours appear. Among the naturally occurring carotenoids that can be converted to vitamin A in the human body, so-called ‘provitamin A carotenoids’, beta-carotene is the most abundant and most efficient one found in foods. Health Functions A sufficient intake of beta-carotene is important as it functions as • a safe source of vitamin A, helping the body to reach the vitamin A levels that are essential for normal growth and development, good vision and eye health, a strong immune system, and healthy skin. • an antioxidant, contributing to protecting the body against the damaging effects of free radicals and reactive oxygen species, which can potentially increase the risk of developing certain diseases, including cardiovascular diseases, chronic inflammation and cancer. • an agent for sun protection of the skin Disease Risk Reduction Lung cancer Studies indicate that increased intake of vegetables and fruits rich in beta-carotene may decrease the risk of lung cancer. It is not clear if these effects can be attributed to beta-carotene alone as the role of other carotenoids or vitamins from vegetables and fruits and associated dietary or life style patterns have not been adequately explored in the studies (see also Principles – The contradictory science of micronutrients). Some preliminary data suggest that beta-cryptoxanthin protects the lung rather than beta-carotene.
    [Show full text]
  • USDA Food Patterns for Special Analyses
    Appendix E-3: USDA Food Patterns for Special Analyses 1 Appendix E-3: USDA Food Patterns for Special Analyses 2 The 2015 DGAC identified specific questions that they felt could best be addressed through 3 a food pattern modeling approach, using the USDA Food Patterns and the modeling process 4 developed to address similar requests by the 2005 and 2010 DGACs. The approach used for the 5 2015 DGAC food pattern modeling questions is described in Part C: Methodology. 6 Seven modeling analyses requested by the Committee were completed by staff working 7 closely with Subcommittee 1 members, and provided as reports for the full Committee to 8 consider. The food pattern modeling analyses conducted for the 2015 DGAC are listed below. 9 Full reports for each analysis are available online through active links within this document at 10 www.DietaryGuidelines.gov. 11 E-3.1 Adequacy of USDA Food Patterns How well do updated USDA food intake patterns meet IOM Dietary Reference Intakes and 2010 Dietary Guidelines nutrient recommendations? How do the recommended amounts of food groups compare to current distributions of usual intakes for the American population? E-3.2 Food Group Contributions to Nutrients in USDA Food Patterns and Current Nutrient Intakes What is the contribution of whole grain foods and fruits and vegetables to (1) total fiber intake and (2) total nutrient intake in the USDA Food Patterns? What is the contribution of fruits and vegetables to current nutrient intake (focus on nutrients of concern, including fiber)? E-3.3 Meeting Vitamin
    [Show full text]