The short version

  • Prediabetes is a warning, not a diagnosis of type 2. At this stage, food is your biggest lever.
  • There's no special "prediabetic" diet or food to buy, it's the everyday balanced eating that suits the whole house.
  • The changes with the most impact: more veg and fibre, wholegrain over white, fewer sugary drinks, and losing a little weight if you're carrying extra.
  • You don't need a perfect diet. You need a better average, kept up over months.

Prediabetes is a warning worth acting on

Prediabetes means your blood sugar is running higher than normal, but not high enough to be type 2 diabetes. It usually has no symptoms, so most people hear it out of the blue after a routine blood test. That can land like bad news. It's better read as a lucky early warning: a chance to change course while the change still counts for a lot.

The reassuring part is how much sits in your hands at this stage. The eating and lifestyle changes that lower your risk of type 2 are well understood, and for a lot of people prediabetes can even be reversed, though there's no guarantee.2 None of it needs a special diet or a cupboard full of "diabetic" products. It's the everyday balanced eating that's good for anyone, done a bit more often.3

Where to start: the changes that move the needle most

You don't have to overhaul everything at once. If you change a few things and keep them up, you've done the part that matters. These are the ones linked most strongly to a lower risk.1

Eat more veg, and more fibre

More vegetables, salad and whole fruit across the day, and more fibre from beans, pulses and wholegrains. It's the single change with the widest backing, and it fills you up so the rest looks after itself.

Swap white for wholegrain

Move from white bread, white rice and refined cereals to wholemeal bread, wholewheat pasta, brown rice and oats. Refined carbs raise blood sugar faster, and the higher-fibre versions keep you fuller for longer.

Drop the sugary drinks

Cola, squash, energy drinks and fruit juice add a lot of sugar for no fullness. Swapping to water, sparkling water or a no-added-sugar version is the easiest single win, and it doesn't touch your actual meals.

Lean on pulses, fish and eggs

Get more of your protein from tinned beans and lentils, eggs, and oily fish like mackerel or sardines, and have red and processed meat less often. Cheaper, higher in fibre, and it makes meals more filling.

If you're carrying extra weight, shift a little

You don't need a dramatic number. If you're above a healthy weight, losing some of it tends to have the biggest impact of all on prediabetes, and it goes hand in hand with the changes above rather than being a separate project.2

You don't need perfect, you need a better average

This is the bit that trips people up. Prediabetes doesn't reward a perfect fortnight followed by giving up. It rewards small, sustainable changes you keep for good. One takeaway, one birthday, one rough week: none of it undoes the trend. What counts is that a bit more of your normal eating, week after week, tips the healthier way.

Steady, sustainable changes beat a three-month crash you can't keep up. The aim is a new normal, not a sprint.2

That's also why the "eat perfectly from Monday" plan tends to fail. The version that works is small, repeatable, and built to survive a normal week.

Make the changes stick

Bolus is a healthy eating programme for pre-diabetes, type 2 and type 1 diabetes: structured support to keep the changes going, not a one-off meal plan. It handles what to eat around how you like to eat, helps you buy the right food from your usual UK supermarket, and keeps an easier option ready for hard nights. A healthy eating coach is built into the app, there any hour, and each week it adapts around what you actually cooked, to help the better average hold instead of fizzling out. No calorie counting, no food diary. It doesn't diagnose or treat anything, and it works alongside your care team.

Get started with Bolus

Want the specifics of what goes in the trolley? See our plain food list for what to eat with type 2 diabetes, which works just as well for prediabetes.

Frequently asked questions

What is prediabetes?
Prediabetes means your blood sugar is higher than normal but not high enough to be type 2 diabetes. It has no symptoms, so most people find out from a routine blood test. It's best read as a warning and an opportunity: at this stage, food, movement and weight are the main levers, and changes now can lower your risk of going on to develop type 2 diabetes.
How do I stop prediabetes turning into type 2 diabetes?
There's no guarantee, but the everyday eating changes linked to a lower risk are well established: more vegetables and fruit, swapping refined carbs like white bread for higher-fibre wholegrain versions, cutting back on sugary drinks, having less red and processed meat, and getting protein and fibre from pulses, fish and eggs. If you're carrying extra weight, losing some of it is one of the biggest levers, and being more active helps too.
What should I eat if I have prediabetes?
Everyday food, not a special diet. Base meals on vegetables and higher-fibre wholegrain carbs, get protein from pulses, fish, eggs and lean meat, choose whole fruit, and use a little extra virgin olive oil. There are no "prediabetic" foods to buy, and no need to count calories. It's the same balanced eating that's good for the whole household.
What foods should I cut down on with prediabetes?
Nothing is banned, but a few things are worth having less often: sugary drinks, large amounts of white bread and white rice, pastries, cakes and biscuits, and processed meat. Swapping sugary drinks for water or a no-added-sugar version is usually the single easiest change to make and keep.
Can prediabetes be reversed?
It's possible for many people, though there's no guarantee. If you're overweight, losing some weight tends to have the biggest impact, and if that's hard or you're already a healthy weight, dietary changes plus more activity can still help. It's about steady, sustainable changes over months rather than a rapid fix, so setting a goal like reversing it in three months usually isn't realistic.
Do I need to cut out carbs with prediabetes?
No. You don't have to cut carbs out. The more useful move is choosing higher-fibre wholegrain versions, wholemeal bread, wholewheat pasta, brown rice, over refined white ones, and keeping an eye on portion sizes. Whole fruit, pulses and starchy veg are all fine.

The evidence

The advice here is Bolus's own, and it lines up with the credible sources we rely on. If you want to check the evidence or read further, these are a good place to start.

  1. Diabetes UK. Healthy eating tips for prediabetes and lowering type 2 risk.
  2. Diabetes UK. How to reverse prediabetes.
  3. NHS. The Eatwell Guide.

This is general healthy-eating information, not medical advice. Prediabetes and your risk of type 2 diabetes are things to review with your GP or diabetes care team, who can guide your own targets and any treatment.