Course at a glance


Living a Healthy lifestyle is considered the new craze especially in recent times, in this course we explore why a balanced diet with regular exercise are key to good health.

Diet and nutrition will be defined and better understood in this course, before we learn about what our bodies need, we also need to understand how we process food, how we get fat, build muscles, and have enough energy for our body’s need to walk, talk, pump our heart, breathe, blink our eyes, maintain our body and grow – basically to stay alive.

How people stay healthy and what foods are required in what amounts is discussed.

Lessons on diet and nutrition will be learned through practical activities which can easily be done at home.

Accredited Level 3 Diet + Nutrition Diploma Entry Requirement

Entry to this Accredited Level 3 Diet + Nutrition Diploma requires that potential students have gained GCSE/IGCSE or equivalent qualifications and have, good English oral, reading and writing skills.

Advice on enrolment and guidance of prior learning (APL) can be obtained through out contact centre. The course is a rolling programme and can be started at any point in the year. Successful students can go on to Higher Education, including remaining as students at OLC to complete courses in our portfolio of higher awards.

All students must be aged 16 or over.


The coursework is assessed through continuous assessment with no formal exit examinations.

Study Hours

Approximately: 200 hours of personal study time for the entire course is recommended. All of which is supported by the OLC Course Tutor, who we greatly encourage students to access support from throughout their course.

Quality Assurance

This course has been developed by the College’s professional team of tutors to meet the needs of sector based employers and employees. It is also part of the College’s validated level three Diplomas’, recognised internationally, as verified and moderated Centre for Interactive Education (CIE Global). Further details of our accreditations are provided on our website.

Accredited Level 3 Diet + Nutrition Diploma Course Length

1 Year.

Awarding Body


Accredited Level 3 Diet + Nutrition Diploma Course Content

Accredited Level 3 Diet + Nutrition Diploma Module 1 – The Digestive system

The first module addresses how our body processes food and water using the digestive system. Some foods like cellulose are not digested and what happens to this is as important to know as making use of food groups such as proteins. This module concentrates on exploring the digestive systems, so that, before the specifics of diet and nutrition are looked at, we have an understanding of how the different areas of our digestive system work. Why is the mouth as important as the intestine? It is important to know more about how food gets from our plates into our tissues and cells, and what foods are beneficial to our body. When looking at the subject of diet and nutrition, it is important to consider what nutrition actually is, why hunger is felt and food needed.

Accredited Level 3 Diet + Nutrition Diploma Module 2 – Dietary Nutrients

This module introduces the basics of good nutrition and the nutrients our body need. The important dietary nutrients carbohydrate, protein and fats and oils, vitamins, minerals and water are explained in more detail to understand their function in our body. It helps understanding of how good nutrition is introduced and teaches concepts such as “Energy Balance”, “Body Mass Index” and “The Harris Benedict Equation.” How people stay healthy and what foods are required in what amounts is discussed. Food can also be a problem and this is investigated.

Accredited Level 3 Diet + Nutrition Diploma Module 3 – Supplementary Nutrients

As well as the usual foods and nutrient vitamins and minerals are needed in our diet e.g. citric acid (vitamin C) to zinc. There is a trend to take vitamins and / or minerals tablets or herbs and natural supplements such as garlic or cod liver oil. There is a belief that vitamins and minerals are health enhancers and that consuming plenty of them will lead to a long and healthy life. In fact, this module will demonstrate that vitamins and minerals do not directly provide energy nor does consuming a lot automatically guarantees optimal health. So what do they do, why are they especially important for babies, children, and the elderly or if we are ill or run down? What happens if too much are taken (our body simply gets rid of them). It is important to know where they come from and what exactly they do in our body.

Accredited Level 3 Diet + Nutrition Diploma Module 4 – The Role of Fluids

Humans will die quickly without air and survive just a few days without water. In this module, why water, liquids or food containing water is drunk and the best way of obtaining sufficient quantities is analysed. 60-70% of our body weight is made of water. Water is essential to life, e.g. it helps to maintains our body temperature and it helps get rid of waste, cushions our joints, and all of the internal body functions need water. The role of electrolytes (mineral salts), and how to recognize and prevent dehydration is examined. Alcohol is a common fluid consumed as a drug and having little other benefits than providing the body energy (high calorific value), so facts about alcohol and how our bodies metabolise it, as well as the effects of alcohol on our health is explored.

Accredited Level 3 Diet + Nutrition Diploma Module 5 – Weight Loss and Dieting

The main reason people want to control their weight is for better health, as well as wanting to improve appearance and confidence. Generally dieting does not work, unless it involves healthy eating with regular exercise. This module looks at the effects of weight loss on health, and highlights the risks of rapid weight loss methods. The reasons why many people find it so difficult to lose weight and then maintain this loss is examined. Appetite control, metabolism and the effects of different diets, culminating in simple effective strategies used to lose weight and maintain this weight loss is discussed. Simple strategies for gaining weight and without it turning into fat is considered.

Accredited Level 3 Diet + Nutrition Diploma Module 6 – Vegetarianism

Surveys suggest that about one in twenty people in the United Kingdom are vegetarian whilst many more people choose to eat meat rarely or occasionally. A vegetarian diet is followed for a variety of reasons, from religious to moral and ethical reasons. This module looks at the whole topic of vegetarianism, including some of the reasons people choose a vegetarian lifestyle. Are there any health benefits of a vegetarian diet, or, indeed, are vegetarian diets always healthy? The different variations of the vegetarian diet e.g. a vegan diet and what essential elements are limited is discussed, and some ideas for meals to suit needs and provide a fully balanced meal are therefore included.

Accredited Level 3 Diet + Nutrition Diploma Module 7 – Young People

The nutritional needs of children and young people depend on their lifestyle and the amount of energy they use. This depends on age, gender and the amount of activity, so their particular nutritional requirements must be assessed on an individual basis. This module will be of particular interest to all those involved in caring for young people and young people themselves, to help them maintain health and balance. The energy needs of young people, especially if they are very active, as well as their protein, carbohydrate and fluid needs is explored, and assessed in terms of how these may differ from the needs of adults. The dietary needs of women planning to conceive or pregnant are also studied to start discussing the needs of the child from their earliest point of life.

Accredited Level 3 Diet + Nutrition Diploma Module 8 – Groups with Special Dietary Needs

The diet and nutrition of groups with special dietary needs, including women at different stages of their lives, including during pregnancy and the menopause, will have special focus here. So, for example, girls who exercise vigorously may be late menstruating (amenorrhoea). Other groups with special dietary needs include those diagnosed as having diabetes, heart disease, allergies and asthma. The signs and symptoms associated with these diseases and what can be done to prevent or delay their onset will be considered. The importance of all essential minerals and vitamins will be explored in this particular context. Our body cannot make Iron yet it is an essential requirement so how to provide sufficient amount and prevent anaemia will also be explored.

Accredited Level 3 Diet + Nutrition Diploma Module 9 – Eating Disorders

The three main categories of eating disorder are anorexia, bulimia and compulsive eating (some consider obesity to be a fourth type). What each are is explored, and according to most experts on the subject of eating disorders, rather than just being a problem with food and body image, it is believed they are an outward expression of psychological conflict. It may not be easy to label a sufferer as being one or the other of these, as quite often, anorexics might later become bulimic and compulsive eaters might also become bulimic from time to time. It is more useful to know and explore the distinct differences between the eating disorders (often termed disordered eating) and their effects. Strategies to help counter these illnesses and improve body image will be discussed.

Accredited Level 3 Diet + Nutrition Diploma Module 10 – Personal Dietary Plans

There is evidence that most people do not understand how to maintain a healthy state. As for children, our needs depend on age, gender and the level of activity. Having a health plan is not just about maintaining body weight, but more about leading a balanced and healthy lifestyle. This depends on individual needs and therefore a plan has to be devised methodically. Designing a personal dietary plan needs to take into account all the personal details of the person. A plan includes suggestions and ideas for healthy, balanced meals, treats and advice on keeping food (calorie intake) and exercise (calorie expenditure) diaries, so that any goals and targets set may be successfully achieved within a given time frame, and sustainable techniques taught.

Additional Recommended Text:


This Accredited Level 3 Diet + Nutrition Diploma can be used to gain entry to a Level 4 Diploma or higher.

Further information on our Level 4 Diplomas can be found here: