Online Nutrition Courses

Career Diploma in
Nutrition, Diet, and Health Science

Online nutrition courses in our Nutrition, Diet and Health Science program show you how to lead a healthier life. Learn the latest scientific basis for the MyPlate guide, diet planning and how nutrients affect energy, wellness and disease.

  • Prerequisite: None
  • Study Method: Textbooks with Online Exams
  • Program Length: As few as 6 Months

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  What You'll Learn

Our online nutrition courses consists of detailed lessons that introduce basic science-based concepts along with practical applications for use in everyday life. You’ll study key topics, such as...

  • How the body uses carbs
  • The function of lipids in the body
  • How proteins promote good health
  • The role of body weight and body fat
  • Making food choices to maximize nutrients

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View Curriculum Details  

Lesson 1: Learning at Ashworth  

The goals and values of Ashworth College; time management; creating a realistic weekly and monthly study schedule; the nature and purpose of assessments; how to study effectively to prepare for and take an online examination; developing the skill sets necessary for success in the twenty-first century.

Lesson 2: Introduction to Fitness, Nutrition, and Wellness Careers  

Introduction to career opportunities available in the fitness and exercise, sports psychology, massage therapy, and nutrition and wellness fields.

Lesson 3: Food Choices: Nutrients and Nourishment  

The function of nutrients in food choices; assessing nutritional health.

Lesson 4: Nutrition Guidelines: Tools for a Healthful Diet  

How nutrition discoveries are made; how nutrition experiments translate into guidelines; identifying available nutrition tools to help plan healthier diets.

Lesson 5: The Human Body: From Food to Fuel  

Tracing the path of a meal from the time it is eaten until it has been digested, absorbed, transported within the body, and metabolized—all the way to the point when the body excretes the meal’s non-absorbable waste products.

Lesson 6: Carbohydrates: Simple Sugars and Complex Chains  

Defines carbohydrates; how the body uses carbs; how to plan a diet that includes the correct amount of all types of carbohydrates.

Lesson 7: Lipids: Not Just Fat  

Defines lipids; how lipids function in the body; identifying current recommendations for the amount of fats people should consume and avoid.

Lesson 8: Proteins and Amino Acids: Function Follows Form  

Defines proteins; functions of proteins in our diet; how proteins promote good health.

Lesson 9: Energy Balance and Weight Management  

The role of body weight and body fat in our overall health.

Lesson 10: Vitamins: Vital Keys to Health  

Defines vitamins; how vitamins are grouped; how the body uses vitamins.

Lesson 11: Water and Minerals  

The function of water as a macronutrient; the role minerals play in maintaining the body’s health; identifying trace minerals and how they work in balance with each other.

Lesson 12: Complementary Nutrition: Functional Foods and Dietary Supplements  

Maintaining adequate nutrition; the role of fortified foods and dietary supplements in nutrition and good health.

Lesson 13: Sports Nutrition: Eating for Peak Performance  

The influence of exercise on nutritional status and overall health; nutrition’s impact on exercise.

Lesson 14: Life Cycle: Maternal and Infant Nutrition  

The processes related to fetal growth and development; the role of adequate nutrition and consistent prenatal care in reducing the number of high-risk pregnancies and low-birthweight babies.

Lesson 15: Life Cycle: From Childhood Through Adulthood  

The effects of nutrition choices from birth to adulthood; the effects of nutrition and lifestyle choices on physiological changes related to aging.

Lesson 16: Food Safety and Technology: Microbial Threats and Genetic Engineering  

The safety of our food supply; making wise choices regarding the sources of our daily diet.

Lesson 17: World View of Nutrition: The Faces of Global Malnutrition  

The many aspects of feeding the world’s population, including nutritional requirements, food production, politics, and economics.

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  What You Get

Unlike other online nutrition programs, the Nutrition, Diet and Health Science program lets you start any time, study on your terms and move ahead at your own pace. We’ve erased the barriers to career education so you can graduate fast.

Everything you learn is applicable in the real world – designed to improve your own health and that of family and friends. Your tuition covers:

  • Comprehensive textbook and study guides
  • Open-book, online exams
  • Dedicated academic support and tutoring
  • Participation in the Student Community
  • Career Services powered by CareerBuilder®

When you graduate you’ll receive a beautiful diploma and you may attend our annual graduation ceremony. You’ll be proud knowing your diploma is from an accredited college, expressing your commitment to professional advancement.

  • Online Nutrition Courses Books


  • Online Nutrition Courses Diploma


  • Graduation Video


Eat right for better health. Start training in our online nutrition classes today. Speak with an Admissions Advisor at 1-800-957-5412 or enroll online now.