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Related Concept Videos

Proteins: Dietary Sources and Requirements01:28

Proteins: Dietary Sources and Requirements

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Consuming animal-based products offers high-quality proteins that contain optimal levels and combinations of essential amino acids, crucial for tissue repair and growth. Foods like eggs, milk, fish, and most meats are a source of complete proteins. Legumes and cereals are abundant in proteins; however, they typically lack a full range of essential amino acids. As a result, they are considered incomplete protein sources. Some plant sources like soybeans, quinoa, and amaranth do contain complete...
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Lipids: Dietary Sources and Requirements01:18

Lipids: Dietary Sources and Requirements

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Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ...
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Key Elements for Plant Nutrition02:35

Key Elements for Plant Nutrition

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Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
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Carbohydrates: Dietary Sources and Requirements01:15

Carbohydrates: Dietary Sources and Requirements

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Carbohydrates are predominantly obtained from plant sources. With the exception of lactose found in milk and insignificant glycogen amounts in meat, most consumed carbohydrates have plant origins. Monosaccharides and disaccharides, or sugars, can be sourced from fruits, honey, milk, sugar cane, and sugar beets. Grains and vegetables are rich in the polysaccharide starch. Two types of polysaccharides provide fiber: cellulose, which is abundant in many vegetables, forms undigestible roughage or...
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Dietary Connections01:23

Dietary Connections

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In biological systems, most metabolic pathways are interconnected. The cellular respiration processes that convert glucose to ATP—such as glycolysis, pyruvate oxidation, and the citric acid cycle—tie into those that break down other organic compounds. As a result, various foods—from apples to cheese to guacamole—end up as ATP. In addition to carbohydrates, food also contains proteins and lipids—such as cholesterol and fats. All of these organic compounds are used...
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Parentral Nutrition: Centeral and Peripheral Parental Nutrition01:27

Parentral Nutrition: Centeral and Peripheral Parental Nutrition

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Parenteral Nutrition (PN) delivers essential nutrients directly into the bloodstream, bypassing the digestive system. It is commonly used for individuals with severe digestive disorders or conditions that prevent normal nutrient absorption.
PN can be administered through two primary routes:
1. Central Parenteral Nutrition (CPN):
CPN involves delivering a high concentration of nutrients through a large vein. This is typically achieved using a Peripherally Inserted Central Catheter (PICC) or,...
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Related Experiment Video

Updated: Apr 21, 2026

'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake
04:46

'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake

Published on: September 18, 2018

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Meeting the nutrient reference values on a vegetarian diet.

Michelle A Reid1, Kate A Marsh2, Carol L Zeuschner3

  • 1Corporate Nutrition, Sanitarium Health and Wellbeing, Berkeley Vale, NSW, Australia. michelle.reid@sanitarium.com.au.

The Medical Journal of Australia
|November 6, 2014
PubMed
Summary

Well-planned vegetarian diets meet most nutritional needs for all ages. This study developed sample meal plans to ensure adequate nutrient intake, highlighting the importance of careful planning for vegetarian eating patterns.

Related Experiment Videos

Last Updated: Apr 21, 2026

'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake
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'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake

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Area of Science:

  • Nutrition Science
  • Dietary Planning
  • Public Health

Background:

  • Increasing trend of plant-based vegetarian meal consumption in Australia.
  • Established health benefits associated with vegetarian diets.
  • Necessity for well-planned vegetarian diets to meet nutritional requirements.

Purpose of the Study:

  • To demonstrate that well-planned vegetarian diets can meet the nutritional needs of individuals across all age groups.
  • To develop sample single-day lacto-ovo-vegetarian meal plans.
  • To ensure compliance with nutrient reference values set by Australian and New Zealand health authorities.

Main Methods:

  • Development of sample single-day lacto-ovo-vegetarian meal plans.
  • Compliance assessment against nutrient reference values from the National Health and Medical Research Council and the New Zealand Ministry of Health.
  • Inclusion of increased requirements for iron (180%) and zinc (150%) for vegetarians.

Main Results:

  • The developed meal plans met key requirements for energy, protein, carbohydrate, total fat, fatty acids, fiber, iron, zinc, calcium, folate, and vitamins A, C, E, and B12.
  • Exceptions noted: vitamin D, long-chain omega-3 fatty acids, and increased iron needs during pregnancy for vegetarians.
  • The plans were designed for both sexes and all age groups.

Conclusions:

  • Well-planned vegetarian diets are nutritionally adequate for children and adults.
  • Careful dietary planning is crucial for optimizing nutrient intake on a vegetarian diet.
  • Further consideration is needed for specific nutrients like vitamin D and omega-3s, and iron during pregnancy.