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1 Year Access 
23 Students 
3 hours, 52 minutes 
Online Nutrition Course Level 3 Overview
This level 3 nutrition course online gives you a clear and practical understanding of food, health, and the body. You will learn how nutrients work, why they matter, and how diet affects people at different stages of life.
First, you will explore the basics of nutrition. Then, you will study macronutrients and micronutrients in simple terms. After that, you will learn about nutrition needs from pregnancy through to adulthood.
The course also covers healthy dieting, weight control, eating disorders, and nutrition related diseases. In addition, you will explore how nutrition supports people with different illnesses. Finally, you will understand the role of a nutritionist and how this career works in real life.
By the end of this level 3 nutrition course online, you will feel confident discussing diet, health, and healthy lifestyle choices.
Learning Outcomes
- Recognise the negative impact of a poor diet on the body and mind
- Reduce your chances of heart disease and diet-related illnesses by eating right
- Get a complete overview of macronutrients, minerals, vitamins and their functions
- Explore the human digestive system and the five stages of digestion
- Develop healthier eating habits and introduce nutritional foods into your diet plan
- Get tips and tricks for removing toxins from the body and boosting energy levels
- Understand the importance and benefits of a healthy, balanced diet
- Learn about the metabolic system and how food is converted into energy
- Â Familiarise with common food allergies and intolerances
Who Should Take This Course
Whether you’re an existing practitioner or aspiring professional, this course will enhance your expertise and boost your CV with key skills and an accredited qualification attesting to your knowledge.
The Diet and Nutrition Diploma is open to all, with no formal entry requirements. All you need is a passion for learning, a good understanding of the English language, numeracy and IT, and to be over the age of 16.
Course Sneak Peeks
Assessment
- In order to pass the course, you have to complete an online assessment at the end of it.
- The assessment will be an automated one, you will get to know your result right after the test.
- If you don’t pass on the first attempt, don’t worry. You can repeat the assessment until you’re satisfied with the result.
- All the attempts will not take any further fees, they are included on your one-time paid fee.
Certification
At the end of the course, you will be able to order an Accredited Certificate of Achievement at an additional cost of £19 for a PDF copy and £29 for an original print copy sent to you by post or for both £39.
Frequently Asked Questions
 Nutrition is the study of how food affects health, growth, and energy. It focuses on the balance of macronutrients and micronutrients to support physical well-being, prevent diseases, and maintain overall body function and vitality.
You’ll learn about nutrients, healthy dieting, dietary requirements across age groups, managing weight, understanding eating disorders, and the role of nutrition in disease prevention—equipping you with practical knowledge to promote a healthy lifestyle.
This course is ideal for anyone interested in health, fitness, or wellness, including aspiring nutritionists, personal trainers, caregivers, or individuals who want to understand how diet and nutrition affect long-term health and performance.
Proper nutrition supports immunity, controls weight, reduces inflammation, and lowers risks of chronic diseases such as diabetes, heart disease, and obesity by providing essential nutrients that promote optimal body function and cell repair.
A nutritionist assesses dietary needs, designs meal plans, educates individuals on healthy eating, and provides guidance for managing conditions like obesity, diabetes, or hypertension through balanced nutrition and sustainable lifestyle changes.
