Healthy eating is important for everyone but is even more important if you have diabetes or are at risk of developing it. This is because some foods that you eat will have more impact on your blood glucose levels. 

The Eatwell guide shown below is the recommendation for proportions of different food groups for the general population. For people with diabetes, or at risk of developing it, a reduction in carbohydrates may be beneficial. There is evidence that a Mediterranean style diet with nearer 50% vegetable, 25% protein/fat, 25% starch (carbohydrate) balance can help with weight loss and improving blood glucose levels.

The Eatwell Guide shows how much of what we eat overall should come from each food group to achieve a healthy, balanced diet.

Food groups explained

Knowing exactly what you are eating at times can be difficult. This video below discusses some of the different aspects of a healthy balanced diet to help you make more informed decisions.

Fruit & Vegetables

It’s recommended that we eat at least 5 portions of fruit and vegetables a day.

Most of us are still not achieving the recommended daily amount. Fruit and vegetables should make up at least a third of what we eat every day and you can choose from fresh, frozen, tinned and dried. Try to limit your intake of smoothies and fruit juices to 150 ml per day as they are usually high in sugar and don’t contain as much fibre.

Fruit and vegetables are a great source of essential vitamins, minerals and fibre which are all needed to keep our bodies healthy.


Starchy food should make up just over a third of the food we eat. Choose higher fibre wholegrain varieties.

Carbohydrates are foods that break down into glucose in the body. These may be sweet foods like cakes, sweets, chocolate, biscuits, sugared breakfast cereals, honey, fruit and concentrated fruit juices, or starchy foods like potatoes, pasta, rice and break.

Sweet (refined) carbohydrate foods should be limited as they can cause blood glucose levels to rise quickly. These types of carbohydrates are classified as having a high glycaemic index. Starchy carbohydrates (like rice, potatoes, bread/ pizza base, oats, pasta) may be taken in moderation and can make up about a third of our plate along with plenty of vegetables and protein foods.

Wholegrain varieties have a much lower glycaemic index so choose these when possible. Examples of these are whole-wheat pasta, wholegrain bread, brown rice and potatoes with their skin on as these provide more nutrients and contain higher levels of fibre.

Some people have found reducing their starchy carbohydrate intake below these levels helps them lose weight and gives better control of their blood glucose levels if they have diabetes. You can find out more about low carbohydrate diets here. 


Dairy includes things like milk, yoghurt and cheese and you should aim to eat 2 – 3 portions of dairy a day.

Dairy products are a great source of calcium which is really important to keep your bones strong and protein which is important to build and repair muscles and vitamins.

Dairy products can sometimes be high in fat and sugar so make sure that you check the labels and choose low-fat and sugar varieties.

Beans, meat, fish, eggs pulses and other proteins:

We should aim to eat 2–3 portions a day and 2 portions of fish, 1 of which is oily fish, per week.

All of these foods are rich in vitamins, minerals and protein, which are essential for building and repairing muscles and tissues in our body.

Try to choose lean cuts of meat and limit the amount of red and processed meat, such as bacon and sausages, as these tend to be higher in saturated fat. Pulses such as beans, lentils and peas are good alternatives to meat as they are great sources of protein, and fibre and are lower in saturated fat.

Oily fish contains omega-3 fatty acids which are essential fatty acids that cannot be made by the body in sufficient amounts. They can lower blood triglycerides (a type of fat found in the blood) and help protect against heart disease. Examples of oily fish include fresh tuna, salmon, sardines and mackerel.

Oils and spreads:

Choose unsaturated oils and spreads, and eat in small amounts

We do need some fat in our diets, but these should come from unsaturated fats such as sunflower, rapeseed and olive oils and spreads made from these oils. There are good fats called monounsaturated fats which include, avocados, olives, almonds, cashews and peanuts. Try to use cooking oils made from plants or seeds like canola, olive, peanut, soybean, and sesame oils rather than animal-based products such as lard, dripping and butter. 

Too much fat in our diets, particularly saturated fats (such as in meat, lard and other animal products) raises our cholesterol levels which increases the risk of developing heart disease and stroke.

Foods high in fat, sugar and salt:

These foods are not needed in our diet, so should be eaten less often and in smaller amounts.

We don’t need to eat foods that are high in saturated fat, sugar and salt. Salt can raise blood pressure, so avoid adding salt to food and cooking and avoid processed/ tinned food with high salt levels.

High fat/ sugar/ salt foods will damage our health and increase the risk of developing heart disease, diabetes, certain types of cancer and strokes.

Obvious examples of these types of foods are cakes, biscuits, crisps, chips, fast foods, ice cream and sugary drinks. We should only eat these occasionally as they are high in calories, saturated fat, sugar and salt, which over time can seriously affect our health.

Ready-made meals are also in saturated fats, and salts and sometimes have added sugar. Avoid buying ready-made meals and highly processed foods such as frozen chips, nuggets, and pizzas as they generally have little nutritional value.

Additional resources:

The British Dietetic Association (BDA) is a great resource for advice about healthy eating and for further reading on the different food groups. Our type 2 diabetes prevention, or type 2 diabetes online courses are also great sources of further information. You can complete them at your own pace in your own time, why not give them a try?

Registering to view your diabetes GP record will allow you to view all of your clinical results for measures such as BMI, HbA1c, eyes screening and much more.