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Nutritional Sciences Course
More than 2 million students worldwide

Nutritional Sciences Course

Master the science of nutrition from cellular metabolism to clinical practice. This comprehensive course covers macronutrients, vitamins, minerals, energy balance, and dietary assessment across every stage of life. Whether you are pursuing a career in dietetics, healthcare, or public health, you will graduate with the knowledge to make a real difference in how people eat and thrive.

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What you will learn:

In this course, you will build a thorough understanding of how nutrients are classified, digested, absorbed, and metabolised at the cellular level. You will study every major macronutrient and micronutrient, learning their physiological roles, dietary sources, and deficiency risks. You will explore energy balance, body composition assessment, and weight management principles grounded in current evidence. The curriculum also covers nutrition across the full life cycle, from prenatal needs through older adulthood. You will develop practical skills in dietary assessment, meal planning, and client-centred counselling. Additional modules address sports nutrition, clinical disease management, food safety, and sustainable food systems.

How you study in practice Nutritional Sciences Course

How you practise Nutritional Sciences Course

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Course content

8 Chapters • 37 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Foundations of Nutritional Science

  • Lesson 1 • Digestion and Nutrient Absorption

    Traces the gastrointestinal pathway from ingestion to cellular uptake. Explains enzymatic and transport mechanisms critical to bioavailability.

  • Lesson 2 • Defining Nutrition and Its Scope

    Introduces nutrition as a scientific discipline and its role in health. Connects historical milestones to modern evidence-based practice.

  • Lesson 3 • Cellular Energy Metabolism

    Explains ATP production pathways and how cells extract energy from nutrients. Grounds later chapters on macronutrient metabolism in biochemical reality.

  • Lesson 4 • Nutrient Classification and Functions

    Categorises macronutrients and micronutrients by chemical structure and physiological role. Provides the framework for all subsequent nutrient-specific chapters.

Chapter 2See details

Macronutrients: Carbohydrates and Lipids

  • Lesson 1 • Lipid Classification and Structure

    Categorises fatty acids, triglycerides, phospholipids, and sterols by structure. Provides the chemical foundation for understanding fat metabolism and function.

  • Lesson 2 • Lipid Digestion, Transport, and Metabolism

    Explains lipoprotein transport, beta-oxidation, and ketogenesis. Connects lipid biochemistry to cardiovascular health outcomes.

  • Lesson 3 • Carbohydrate Metabolism and Glycaemic Response

    Covers glucose regulation, insulin signalling, and glycaemic index. Links carbohydrate quality to chronic disease risk.

  • Lesson 4 • Carbohydrate Structure and Classification

    Distinguishes monosaccharides, disaccharides, and polysaccharides by structure and function. Establishes the chemical basis for glycaemic and fibre discussions.

  • Lesson 5 • Dietary Recommendations for Carbohydrates and Fats

    Translates biochemical knowledge into evidence-based intake guidelines. Addresses common misconceptions about low-carb and low-fat dietary patterns.

Chapter 3See details

Macronutrients: Proteins and Water

  • Lesson 1 • Protein Quality and Food Sources

    Applies scoring methods to compare animal and plant protein quality. Guides practical food selection for meeting amino acid requirements.

  • Lesson 2 • Water, Electrolytes, and Hydration

    Explains fluid compartments, electrolyte balance, and hydration assessment. Connects water intake to kidney function and physical performance.

  • Lesson 3 • Protein Digestion and Synthesis

    Traces proteolysis from stomach to intestine and explains ribosomal protein synthesis. Connects dietary protein intake to muscle and tissue maintenance.

  • Lesson 4 • Protein Requirements Across Life Stages

    Quantifies protein needs for growth, maintenance, and ageing. Addresses elevated needs in athletes, pregnancy, and older adults.

  • Lesson 5 • Amino Acid Structure and Classification

    Identifies essential, non-essential, and conditionally essential amino acids. Establishes the chemical basis for protein quality assessment.

Chapter 4See details

Vitamins: Fat-Soluble and Water-Soluble

  • Lesson 1 • Vitamin C and Antioxidant Function

    Explains ascorbic acid roles in collagen synthesis, iron absorption, and immune defence. Addresses scurvy, megadose risks, and food sources.

  • Lesson 2 • Vitamin Deficiency and Toxicity Assessment

    Applies clinical and biochemical markers to identify vitamin status. Prepares students to evaluate supplement use and fortification strategies.

  • Lesson 3 • B-Vitamin Complex Functions

    Maps each B vitamin to its coenzyme role in energy and one-carbon metabolism. Connects deficiencies to neurological and haematological outcomes.

  • Lesson 4 • Fat-Soluble Vitamins A, D, E, and K

    Examines absorption, storage, and metabolic roles of vitamins A, D, E, and K. Highlights toxicity risks from excess supplementation.

Chapter 5See details

Minerals and Trace Elements

  • Lesson 1 • Mineral Interactions and Bioavailability

    Identifies competitive absorption, phytate and oxalate inhibition, and synergistic mineral pairs. Enables accurate dietary planning to optimise mineral status.

  • Lesson 2 • Iodine, Selenium, and Other Trace Elements

    Examines thyroid hormone synthesis, antioxidant selenoproteins, and roles of copper, manganese, and chromium. Identifies deficiency and toxicity thresholds.

  • Lesson 3 • Iron and Zinc Metabolism

    Traces iron absorption, transport, and storage alongside zinc's enzymatic roles. Addresses deficiency prevalence and inhibitors of absorption.

  • Lesson 4 • Major Minerals: Calcium, Phosphorus, and Magnesium

    Covers bone mineralisation, phosphate energy transfer, and magnesium enzyme cofactor roles. Connects intake adequacy to skeletal and metabolic health.

  • Lesson 5 • Electrolyte Minerals: Sodium, Potassium, and Chloride

    Explains fluid balance, nerve conduction, and blood pressure regulation by electrolytes. Links sodium excess and potassium insufficiency to hypertension risk.

Chapter 6See details

Energy Balance and Body Composition

  • Lesson 1 • Obesity: Etiology and Health Consequences

    Examines genetic, hormonal, and environmental drivers of obesity. Links adiposity to cardiometabolic, musculoskeletal, and psychological comorbidities.

  • Lesson 2 • Weight Management Principles

    Applies energy deficit and surplus strategies to fat loss and muscle gain goals. Addresses metabolic adaptation and sustainable behaviour change.

  • Lesson 3 • Estimating Energy Needs

    Applies validated predictive equations and activity factors to estimate individual energy needs. Compares indirect calorimetry to prediction methods.

  • Lesson 4 • Body Composition Assessment Methods

    Compares DXA, BIA, skinfold, and anthropometric methods for measuring fat and lean mass. Addresses accuracy, accessibility, and clinical utility of each.

  • Lesson 5 • Energy Intake and Expenditure Components

    Breaks total daily energy expenditure into BMR, TEF, and activity components. Establishes the quantitative basis for caloric prescription.

Chapter 7See details

Nutrition Across the Life Cycle

  • Lesson 1 • Adult and Older Adult Nutrition

    Identifies age-related changes in absorption, muscle mass, and appetite affecting nutrient needs. Addresses vitamin D, B12, and protein priorities in older adults.

  • Lesson 2 • Prenatal and Maternal Nutrition

    Quantifies increased nutrient demands during pregnancy and their impact on fetal development. Addresses gestational weight gain and critical nutrient supplementation.

  • Lesson 3 • Childhood and Adolescent Nutrition

    Addresses growth-driven nutrient needs, school feeding environments, and pubertal changes. Links adolescent dietary patterns to long-term chronic disease risk.

  • Lesson 4 • Infant and Toddler Nutrition

    Covers breast milk composition, formula selection, and complementary food introduction. Establishes feeding practices that support growth and allergy prevention.

Chapter 8See details

Dietary Assessment and Nutritional Counselling

  • Lesson 1 • Goal Setting and Meal Planning

    Translates nutrient targets into practical meal plans using SMART goal frameworks. Addresses cultural food preferences and budget constraints.

  • Lesson 2 • Dietary Assessment Methods

    Compares 24-hour recalls, food frequency questionnaires, and food records for accuracy and feasibility. Addresses systematic errors and population-level applications.

  • Lesson 3 • Nutritional Status Indicators

    Integrates dietary, anthropometric, biochemical, and clinical data for comprehensive status assessment. Applies the ABCD framework to case-based scenarios.

  • Lesson 4 • Behaviour Change Theories in Nutrition

    Applies transtheoretical, social cognitive, and motivational interviewing models to dietary change. Connects theory to practical counselling strategies.

  • Lesson 5 • Monitoring, Evaluation, and Follow-Up

    Establishes protocols for tracking dietary adherence and reassessing nutritional status over time. Prepares students to adjust plans based on outcome data.

Certification

Your valid completion certificate

This course is for you:

  • Pre-med students: wanting a strong foundation in human nutrition science.

  • Personal trainers: ready to expand their expertise beyond exercise programming.

  • Public health workers: seeking deeper knowledge of population-level dietary factors.

  • Career changers: transitioning into dietetics or health coaching from unrelated fields.

  • Nursing students: looking to strengthen their understanding of therapeutic nutrition.

  • Wellness enthusiasts: committed to moving beyond trends into evidence-based eating habits.

What our students say

Your lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of interest without needing to change platforms... I'm grateful for everything you do, I've already recommended you to other people...
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Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can change chapters and skip content I don't need.
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Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!
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Luciana AlvarengaNail Design Student
The platform is fast and simple to use. The diversity of content and complementary videos really help with learning.
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André FelipePrompt Engineering Student

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