Hidden sugar dangers: Why even natural sources can harm your health

Sugar remains a major concern for health experts, with new warnings about its hidden risks. Many people assume natural sugars in fruits or honey are harmless, but research shows they can still harm the body in large amounts. The World Health Organization advises strict limits on daily intake to avoid serious health problems.

Natural sugars in whole fruits, milk, and vegetables come with fibre, vitamins, and minerals. These nutrients slow down sugar absorption, making them a better choice than refined sugar. However, juicing removes fibre, causing rapid glucose spikes—similar to sugary drinks.

Fructose, found in honey and fruit juices, can overwhelm the body when consumed in excess. Over time, this may lead to fatty liver, insulin resistance, high triglycerides, and belly fat. Honey, often seen as a healthy alternative, should instead be treated like sugar due to its high sugar content and impact on blood glucose levels.

White sugar provides only empty calories, with no nutritional benefits. The WHO recommends no more than 25 grams of added sugar per day for an average adult—about 5% of a 2,000-calorie diet. Yet many common foods exceed this limit quickly: a single 250 ml glass of apple juice contains 25g, while soft drinks, sweetened cereals, and processed meals often hide large amounts.

Sugar also affects the brain, triggering cravings and energy crashes. Long-term overconsumption is linked to weight gain, diabetes, heart disease, and faster ageing. In children, it raises the risk of obesity, tooth decay, and early insulin resistance. Eating small amounts of sugar with meals is less harmful than drinking it, as liquids cause faster blood sugar spikes.

The risks of excess sugar go beyond weight gain, damaging blood vessels, nerves, and immunity over time. Health guidelines stress moderation, especially with hidden sugars in processed foods and drinks. Choosing whole fruits over juices and limiting added sugars can help reduce long-term health complications.