Most of us eat more sugar than we realise, and more than is good for us. Cutting back is one of the simplest, highest-impact changes you can make to your diet — but the advice is often muddled, leaving people anxiously avoiding fruit while overlooking the genuine culprits. Getting clear on which sugars actually matter, and where they hide, makes cutting down far easier. This is general information rather than medical advice; if you have diabetes or another condition affecting your diet, follow the guidance of your healthcare team or the NHS.

Which sugars actually matter

The first thing to understand is that not all sugar is equal in the eyes of health guidance. The target is a specific category called free sugars.

Free sugars are those added to food and drink — by manufacturers, in cooking or at the table — plus the sugars naturally present in honey, syrups, and unsweetened fruit and vegetable juices. These are the sugars that bodies like the NHS and WHO recommend cutting back on, because we tend to consume them in large amounts and they add calories with little nutritional benefit.

Just as important is what is not the target: the sugars naturally found in whole fruit, vegetables and plain milk. In whole fruit, for example, sugar comes bundled with fibre, water and nutrients, and is digested more slowly. You do not need to avoid whole fruit or vegetables because they contain sugar — that is a common and counterproductive misunderstanding. The concern is added and free sugars, not the natural sugar in whole foods.

The simplest mental rule: cut back on sugar that has been added, and on sugary drinks. You do not need to fear the sugar in an apple.

Why cutting free sugars helps

Reducing free sugars brings several benefits. They are a major source of "empty" calories, so cutting them can help with maintaining a healthy weight. They are also strongly linked to tooth decay, one of the most common preventable health problems. And because sugary foods and drinks cause sharp rises in blood sugar, reducing them supports steadier energy and lowers the dietary contribution to type 2 diabetes risk over time.

How to Reduce Your Sugar Intake
Photo: Jim Evans / Wikimedia Commons (CC BY-SA 4.0)

None of this requires cutting sugar to zero. The aim is to bring high intakes down to more sensible levels — and for most people, that means tackling a few big sources rather than agonising over every gram.

Sugary drinks: the biggest single win

For many people, the largest source of free sugars is what they drink. Fizzy drinks, energy drinks, sweetened coffees, squashes and even some "healthy" smoothies and juices can contain striking amounts of sugar — and because liquids do not fill us up the way food does, it is easy to consume a lot without noticing.

This makes drinks the easiest high-impact change:

  • Swap sugary fizzy drinks for water, sparkling water or sugar-free versions.
  • Cut back on sweetened hot drinks, or reduce the sugar gradually until you do not miss it.
  • Treat fruit juice and smoothies as occasional rather than unlimited, and stick to small servings, since they count as free sugars even when "natural".

Cutting sugary drinks alone removes a large slice of many people's free-sugar intake with minimal effort.

Spotting hidden sugar

Beyond the obvious sweets and desserts, a great deal of sugar is added to products you might not suspect — including savoury and "healthy-looking" ones:

  • Pasta sauces, ketchup and other condiments
  • Ready meals and tinned soups
  • Many breakfast cereals and granolas
  • Flavoured yoghurts
  • Some breads and "low-fat" products, where sugar is added for flavour

The only reliable way to know is to check the label. Look at the "of which sugars" figure in the nutrition information, and scan the ingredients — sugar appears under many names (glucose syrup, dextrose, fructose, maltose, molasses and others), and ingredients are listed in order of quantity. A useful rough guide many people use is that more than about 22.5g of total sugar per 100g is high, while 5g or less is low. Comparing similar products and choosing the lower-sugar option quickly adds up.

Practical ways to cut down

Sustainable change beats crash effort. A few realistic tactics:

  • Go gradual. Slowly reducing sugar — in your tea, on your cereal, in recipes — lets your taste adjust so you do not feel deprived. Tastes really do recalibrate over a few weeks.
  • Swap, do not just remove. Replace sugary snacks with fruit, plain yoghurt, nuts or other satisfying options rather than leaving a gap.
  • Cook more from scratch. Home cooking gives you control over how much sugar goes in, and pairs well with the habits in building a balanced plate.
  • Choose lower-sugar versions. Plain yoghurt over flavoured, lower-sugar cereals, no-added-sugar sauces.
  • Do not bank on sweeteners as a cure-all. Switching some sugary drinks to sugar-free versions can help reduce sugar, but the longer-term goal for most people is to enjoy less intense sweetness overall.
  • Make it a habit, not a crash diet. Treating it as a lasting change, much like building any healthy habit, is what makes it stick.

It is also fine to keep room for occasional treats. An all-or-nothing approach often backfires; the goal is a lower baseline, not perfection.

The bottom line

Reducing your sugar intake is one of the simplest ways to improve your diet, as long as you target the right sugars. The ones to cut are free sugars — those added to food and drink, plus honey, syrups and juice — not the natural sugar in whole fruit, vegetables and milk. Sugary drinks are usually the biggest and easiest win, while labels reveal the sugar hidden in savoury and "healthy-looking" products. Go gradually, swap rather than simply remove, cook more from scratch, and treat it as a lasting habit rather than a crash diet.

Frequently asked questions

What are free sugars?

Free sugars are sugars added to food and drinks by manufacturers, cooks or consumers, plus sugars naturally found in honey, syrups, and unsweetened fruit and vegetable juices. These are the sugars health guidance recommends cutting back on.

Do I need to avoid fruit because it contains sugar?

No. The sugar in whole fruit comes packaged with fibre, water and nutrients, and it is not classed as free sugar. Whole fruit is encouraged as part of a healthy diet; it is added sugars and sugary drinks that are the concern.

Where is hidden sugar found?

Beyond obvious sweets and fizzy drinks, significant sugar is often added to sauces, ready meals, breakfast cereals, flavoured yoghurts, granola, and drinks marketed as healthy such as smoothies and some juices. Checking the label is the only reliable way to know.

What is the easiest way to cut sugar?

For most people the single biggest win is cutting back on sugary drinks, including fizzy drinks, energy drinks and sweetened coffees. Swapping to water, lower-sugar or unsweetened options removes a large amount of free sugar quickly.

Sources

  1. NHS: How to cut down on sugar in your diet
  2. World Health Organization: Reducing free sugars intake
  3. British Nutrition Foundation