L3 Diet & Nutrition

Level 3 Certificate in Diet & Nutrition

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Become A Qualified Nutritional Advisor

This Level 3 certificate will equip you with an understanding of all the key principles of diet & nutrition. It is an ideal starting point for anyone wanting to learn more about nutrition, or pursue a career as a nutritionist. Unlike our Level 4 Advanced Sports Nutrition qualification, this course does not focus soley on Sports Nutrition but instead covers a much wider range of topics, including nutrition for children, nutrition for older people, food additives and much more. There are no entry requirements for this course, it is open to everyone!

  • 92 Guided Learning Hours
  • 9 Units
  • 100% Online

Course overview

This qualification is designed to equip you with an understanding of the most important areas of nutrition and ensure that you understand the principles of diet and nutrition. This qualification covers a wide range of nutritional issues including; food additives and labelling, healthy eating, weight management, and roles and responsibilities within the field. This qualification focuses on dietary planning for a wide range of individuals and groups including; children and young people, older adults, individuals engaged in sports and exercise and individuals with restricted diets. 

Nutrition is a fundamental part of our health and fitness, and is usually the biggest downfall for individuals not achieving their personal health goals. This course aims to upskill health professionals and beginners alike to improve the quality of nutritional advice being provided in the industry. Becoming a nutritional expert is an important step forward for anyone in the health and fitness industry, and we have designed a course which gets you qualified in a way that is easy to follow, supported throughout and completed at your own pace.

As well as being suitable for individuals working in the health and fitness industry, this course is also perfect for individuals looking to specialise solely on nutrition as we cover an array of topics which you might encounter outside of an exercise setting, such as eating disorders, restricted diets, and the dietary needs of children and the elderly. 


Key topics covered in this course
  • Dietary planning for specific needs
  • Food additives and labelling 
  • Principles of nutrition 
  • Nutrition for sport and exercise
  • Nutritional needs of children and young people
  • Nutritional requirements of older adults
  • Principles of healthy eating
  • Roles and responsibilities when providing nutritional advice
  • Weight management

You can find out more detailed information about the course contents, potential career opportunities and more in the tabs above. Or alternatively, register your interest on the form below and we will send you further information.

What sets us apart from other training providers is that all our courses are developed and delivered by industry experts who are all currently leading the way in their industry. You will be taught through a combination of written materials, interactive learning elements and course videos which help teach important information in an engaging and fun way. 

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The course is made up of 9 separate units which cover the important topics related to diet and nutrition. The course will teach you the content step by step and cover everything you need to know to have an overview knowledge of nutrition. Below is a detailed breakdown of some of the core components of each unit: 

Unit 1: Dietary planning for specific needs 

  1. Understand the nutritional needs of individuals with special dietary requirements 
  2. Understand obstacles to adhering to a specific diet 
  3. Be able to plan meals for a specific dietary requirement 

Unit 2: Food additives and labelling 

  1. Understand food and drink labelling
  2. Be able to analyse food labels 
  3. Understand the use of food additives 

Unit 3: Principles of nutrition 

  1. Understand the process of digestion
  2. Understand the role of nutrients in the body

Unit 4: Nutrition for sport and exercise   

  1. Understand the body’s energy systems in relation to sport and exercise
  2. Understand the role of carbohydrates, proteins and fats in sport and exercise
  3. Understand the role of micronutrients in sport and exercise
  4. Understand the importance of hydration for sport and exercise
  5. Understand the principles of nutrition planning for sport and exercise
  6. Be able to plan an effective diet for a selected sport or exercise programme

Unit 5: Nutritional needs of children and young people

  1. Understand the nutritional needs of children and young people
  2. Understand the benefits of healthy eating for children and young people
  3. Understand obstacles to healthy eating for children and young people
  4. Be able to plan to improve the nutritional health of children and young people 

Unit 6: Nutritional requirements of older adults  

  1. Understand the nutritional needs of older adults
  2. Understand the benefits of healthy eating for older adults
  3. Understand obstacles to healthy eating for older adults
  4. Be able to plan to improvements in the nutritional health of older adults

Unit 7: Apply principles of healthy eating  

  1. Understand guidance on healthy eating
  2. Understand the components of a healthy diet 
  3. Understand the links between nutrition and health
  4. Understand how to promote healthy eating 
  5. Be able to apply the principles of healthy eating 

Unit 8: Understanding roles and responsibilities for providing nutritional advice  

  1. Understand occupational roles and responsibilities in relation to nutritional guidance 
  2. Understand own responsibilities in relation to providing nutritional guidance 

Unit 9: Weight management   

  1. Understand the principles of weight control
  2. Understand eating disorders
  3. Understand approaches to weight management
  4. Be able to plan a weight management programme for an individual 


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meet your team

Leap Academy courses are designed and delivered by experts and professionals who are all big personalities in the health and fitness industry. Each course leader has been specifically chosen due to their knowledge, personality and leading reputation to ensure the course content is top quality, but also highly engaging. Read more about each course leader below and which courses they have helped create and deliver

Specialist Registered Dietitian

Nichola is a Specialist Registered Dietitian with over 14 years of clinical experience, and leads on the LEAP Academy Level 3 Diet & Nutrition qualification. Nichola is a highly respected dietitian, is a published author in the Journal of Human Nutrition & Dietetics, and is a reguarly speaker at events. Read more about Nichola's career and journey below:

Nutritional Expert + Food Influencer

Emily is a well known food influencer who creates delicious and nutritious recipes for her large following. As an expert in human metabolism, she teaches the LEAP Academy L4 Advanced Sports Nutrition qualification. Read more about her story below:


There is no experience or previous qualifications required to enroll in this course! We are open to everyone! 

Even if you are not looking to pursue a career in nutrition, this is a great opportunity to learn about your body and diet.

This is an entry level qualification to nutrition which means you will be taught absolutely everything you need to know and do not require any previous knowledge or experience.


Each unit is assessed through a series of written assignments at the end of the unit. The assignments are 'open book' and you will therefore be allowed to refer to your notes when completing each assessment. 

Each assignment is assessed by our tutors and feedback will be provided if your answers do not meet the required standards of the assignment. You are allowed unlimited free re-submissions of each assingment. 

You must complete the assignments in order and will not be allowed to submit Unit 2 assignments before having passing your Unit 1 assignment. 

If you are feeling worried at all don't panic! We will be here to guide you through all of the assessments and provided support whenver you need it.


Upon successful completion of this course, you will be awarded the Level 3 Certificate in Diet & Nutrition (RQF). This course is accredited by Innovate Awarding.

Innovate Awarding is an Ofqual regulated awarding organisation with an innovative and dynamic approach. They develop off-the-shelf, customised and fully bespoke qualifications across a growing number of sectors all on the Regulated Qualifications Framework (RQF).


This course provides an excellent starting point for anyone who wants to pursue a career in the nutrition industry, or for fitness professionals who want to expand their knowledge base. This course provides a comprehensive overview of nutrition and covers all of the main topics related to diet and nutrition. The all-encompassing knowledge of nutrition this course provides can give you the springboard to progress down a career path as a nutritional advisor. 

If this is your first health and fitness qualification, then you can also take the knowledge you gained from this course into further study with one of our other related courses and qualifications. Getting a better understanding of physical activity with our L2 Gym Instructing or L3 Personal Training qualification is a great place to begin.

A fantastic nutrition advisor progression opportunity which could be taken following this course is our L4 Advanced Sports Nutrition course, which covers working with sport and exercise clients in greater depth and covers creating bespoke nutrition plans in more detail. 

Note: This course does not qualify you to diagnoses or treat nutritional deficiences or diseases. Throughout the course you will gain an understanding of when to refer clients on to a dietitian, doctor or other health care professional.


course options

You will have access to weekly live and on-demand classes with professional Personal Trainers

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What our students say…

I am currently doing my Level 3 PT Course and bbsolutely loving it! Leap has made the course interesting and engaging. The content is explained in a very digestible form, and there are videos further break it down to help mix up the learning. The coaches that teach the content are all very relatable and understanding making them very approachable with any issues you are having. The Live sessions and social pages also make it easy to communicate with peers and course coaches, allowing you to ask any questions you have which is amazing!I would highly recommend going with LEAP to do any courses you are interested in!


Everything from the coursework to the incredible teachers has been great fun and made me eager to come back and continue the course.
The trainers are all so lovely and helpful and the course itself is so in depth and informative it’s awesome!!


I am currently in the process of doing my Level 2/3 PT course. I have been considering it for a while. Now I have started I love the way it is set up. The support you get from the trainers is bar non. I love how you can just do it in your own pace, it can take you a few months or 10 months, all depends on when you are able to do it. Thank you for everything so far. Looking forward to seeing what’s to come.


If you’re looking for a place to complete your courses within the health & wellness industry then look no further than Leap Academy!! I was looking to pursue my dream career as a PT but wasn’t sure where I was best to do them until Leap academy came along and it’s the most interactive and supportive community of learners & demonstrators. It’s so hands on and filled with different formats to mix up your learning which makes it so much more engaging and easier to learn! They also have live online classes where you can ask your trainers questions in real time and get to know your peers and makes you really feel part of the academy. I’ve had so much support from the team and recently passed my unit 1 exam for my level 2/3 PT course & I’m overjoyed!