Essential Nutrients

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  • Curriculum English for Nutrition and Food Siences: Part 1 structure consists of 10 lessons. Part 1 of the curriculum content presented 5 first lesson, lesson 1 presents the Food and Nutrition, unit 2 - Essential Nutrients, unit 3 - Food Groups, unit 4 - Food Preservation, unit 5 - Cooking. Invite you to refer to capture the details of the curriculum.

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  • This book is about what we consider the essentials of human nutrition. The science of human nutrition deals with all the effects on people of any component found in food. This starts with the physiological and biochemical processes involved in nourishment—how substances in food provide energy or are converted into body tissues, and the diseases that result from insufficiency or excess of essential nutrients (malnutrition). The role of food components in the development of chronic degenerative disease like coronary heart disease, cancers, dental caries, etc.

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  • A plant nutrient is a chemical element that is essential for plant growth and reproduction. Essential element is a term often used to identify a plant nutrient. The term nutrient implies essentiality, so it is redundant to call these elements essential nutrients. Commonly, for an element to be a nutrient, it must fit certain criteria. The principal criterion is that the element must be required for a plant to complete its life cycle. The second criterion is that no other element substitutes fully for the element being considered as a nutrient.

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  • In the past few years, the word superfruit has blared into the headlines with alluring fanfare. What began as just a few curious exotic juices in the American market has now evolved into thousands of products in a multibillion-dollar global industry. From the start, the superfruit category has been more about marketing than science. Beverages made from rare, enchanting fruit species marketed with a message of antioxidant benefi ts have beckoned consumers with a seductive array of irresistible health promises....

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  • Prescription and over-the-counter drugs help millions of people with devastat-ing diseases and chronic conditions. But in the process, these medications can also deplete the body’s natural stores of vitamins, minerals, and hormones—the very nutrients you need to keep energy levels high, fend off infections, and be healthy. Pharmacist Suzy Cohen calls these medications “drug muggers,” and she says it’s essential to replenish what a drug mugger steals from your body in order to feel your best and avoid side effects.

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  • A plant nutrient is a chemical element that is essential for plant growth and reproduction. Essential element is a term often used to identify a plant nutrient. The term nutrient implies essentiality, so it is redundant to call these elements essential nutrients. Commonly, for an element to be a nutrient, it must fit certain criteria. The principal criterion is that the element must be required for a plant to complete its life cycle. The second criterion is that no other element substitutes fully for the element being considered as a nutrient.

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  • It is a general belief that the fruits and vegetables that our parents ate when they were growing up were more nutritious and enriched with essential mineral nutrients and were less contaminated with toxic trace elements than the ones that are being consumed by us currently. A study of the mineral content of fruits and vegetables grown in Great Britain between 1930 and 1980 has added weight to that belief with findings of such decreases in nutrient density.

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  • HIGHER PLANTS ARE AUTOTROPHIC ORGANISMS that can synthesize their organic molecular components out of inorganic nutrients obtained from their surroundings. For many mineral nutrients, this process involves absorption from the soil by the roots (see Chapter 5) and incorporation into the organic compounds that are essential for growth and development. This incorporation of mineral nutrients into organic substances such as pigments, enzyme cofactors, lipids, nucleic acids, and amino acids is termed nutrient assimilation....

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  • The concept of nutritional essentiality was firmly established less than 100 years ago. It arose from observations that certain diseases observed in human populations consuming poor diets could be prevented by including other foods in the diet and that failure of animals fed on diets composed of purified components or restricted to one or a few foodstuffs to grow and survive could similarly be corrected by including another food or an extract of the food in the diet. The food constituents that were found to prevent these problems were classified as indispensable (or essential) nutrients.

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  • Physiologic Factors Growth, strenuous physical activity, pregnancy, and lactation increase needs for energy and several essential nutrients, including water. Energy needs rise during pregnancy, due to the demands of fetal growth, and during lactation, because of the increased energy required for milk production. Energy needs decrease with loss of lean body mass, the major determinant of REE. Because both health and physical activity tend to decline with age, energy needs in older persons, especially those over 70, tend to be less than those of younger persons.

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  • Each basic food group5 is the major contributor of at least one nutrient while making substantial contributions of many other nutrients. Because each food group provides  a wide array of nutrients in substantial amounts, it is important to include all food groups in the daily diet. Both illustrative eating patterns include a variety of nutrien dense foods within the major food groups.

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  • Decomposedplantmatter is themain sourceofessentialsnutrients. Theharvesting timeof energycrops,quantity(ofenergycroprichinnutrients)removedduringharvestinfluencesthe nutrientcycleofthesoil,asnutrientsareremovedalongwiththecropsduringtheharvest.This removalofnutrientswithharvesting,leadstothetaxingofessentialnutrientsinthesoil.

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  • Our skin may just feel like a mere shield that protects us from the world outside. But, the fact is, it’s more than just the “mask” that keeps your insides in. It is a very unique and remarkable complex organ that reflects our general health. Thus, it is worth protecting from the outside and inside forces. It is commonly said that for a young, good looking skin, we must provide it with essential nutrients and protect it from external damage. Thanks to some pros out there that making this aim possible is not at all difficult to make. ...

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  • Some proposed calorie­lowering strategies include eating foods that are low in calories for a given measure of food (e.g., many kinds of vegetables and fruits and some soups). However, when making changes to improve nutrient intake, one needs to make substitutions to avoid excessive calorie intake. The healthiest way to reduce calorie intake is to reduce one’s intake of added sugars, fats, and alcohol, which all provide calories but few or no essential nutrients (for more information, see chs.

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  • Chapter 41 introduce to animal nutrition. After studying this chapter you will be able to: Name the three nutritional needs that must be met by an animal’s diet; describe the four classes of essential nutrients; distinguish among undernourishment, overnourishment, and malnourishment; describe the four main stages of food processing;...

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  • After studying this chapter you will be able to: Name the three nutritional needs that must be met by an animal’s diet; describe the four classes of essential nutrients; distinguish among undernourishment, overnourishment, and malnourishment; describe the four main stages of food processing;...

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  • 11 Iron Julius von Sachs, the founder of modern water culture experiments, included iron in his first nutrient cultures in 1860, and Eusèbe Gris, in 1844, showed that iron was essential for curing chlorosis in vines.

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  • 12 Manganese The determination of manganese (Mn) essentiality in plant growth by McHargue (1914–1922) focused the attention of plant nutritionists on this nutrient, and led the way for further groundbreaking studies.

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  • 14 Nickel Nickel (Ni), the most recently discovered essential element (1), is unique among plant nutrients in that its metabolic function was determined well before it was determined that its deficiency could disrupt plant growth.

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  • 13 Molybdenum Molybdenum was discovered in 1778 by the Swedish chemist, Carl Wilhelm Scheele. However, its importance in biological systems was not established until 1930 when Bortels discovered that molybdenum was essential for the growth of Azotobacter bacteria in a nutrient medium.

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