The 5 foods you’re eating every day that are more HARMFUL than sugar

Sugar: Understanding Its Effects and Making Informed Choices

The discussion challenges the idea that all sugar is harmful. The speakers distinguish between sugar in whole foods and free or added sugars, which are outside a food’s natural structure. Their main concern is frequent, excessive intake of added sugar—especially in highly processed foods and drinks—which can be absorbed quickly and contribute to sharp rises and falls in blood glucose.

These swings may affect hunger, energy, and mood. The speakers also discuss how repeated large glucose spikes may promote inflammation. They mention links between high-sugar diets and conditions such as type 2 diabetes, cardiovascular disease, some cancers, and brain disorders, while noting that these relationships are complex and may reflect factors such as excess calorie intake, weight, and overall diet. Sugar itself is not presented as the sole cause.

Practical strategies

• Look for hidden free sugars. Check ingredient lists as well as nutrition labels. Ingredients are listed roughly from greatest to least amount, and sugars may appear under different names.
• Check foods that may seem healthy but contain added sugar. These can include breakfast cereals, low-fat or fruit-flavoured yogurts, sauces such as ketchup, pickles, and sweetened drinks.
• Choose whole fruit over juice. The fibre and structure of whole fruit slow sugar absorption. The discussion ranks whole fruit as preferable to purée, then juice. For smoothies, keep the pulp rather than straining it.
• Remember that fruits vary. Fruit provides fibre and other beneficial compounds, but its sugar and fibre content varies. Dried fruit can be nutritious, but it is concentrated, so portions can add up quickly.
• Have sugary drinks occasionally. Soft drinks, many energy drinks, sweetened iced teas, and some lemonades can deliver sugar quickly. The speakers say sports drinks may be useful during prolonged strenuous exercise but are generally unnecessary for routine activity.
• Reduce sweetness gradually. For example, use less sugar in tea or coffee over time, or switch from sweetened yogurt to plain yogurt. The speakers suggest that switching to intensely sweetened alternatives may maintain a preference for very sweet tastes.
• Consider what you eat with a sweet treat. Foods containing protein, healthy fats, or fibre—such as full-fat yogurt, nuts, seeds, or berries—may moderate the blood-glucose response.
• Move after eating. A short walk soon after a carbohydrate-rich meal may help muscles use glucose. Even light movement, such as moving or tensing the leg muscles, may help.
• Focus on overall habits. The speakers caution against fearing normal blood-sugar rises and emphasize the broader pattern of food intake and repeated large spikes and dips.

The speakers state that the body needs glucose in the blood, but people do not need to eat sugar specifically to supply it: the body can make glucose and obtain it from other carbohydrates. They cite a general target of keeping free sugar below 10% of daily energy, with below 5% as an ideal target discussed in line with WHO guidance.

Presenters and sources mentioned

• Professor Sarah Berry, Professor of Nutrition at King’s College London and ZOE’s Chief Scientific Officer
• Professor Tim Spector, scientific co-founder of ZOE and gut microbiome researcher
• Jonathan, the host addressed in the conversation; no surname is given in the subtitles
• Sources and research: ZOE studies, WHO guidance on free sugar, and Professor Walter Willett of Harvard T.H. Chan School of Public Health, whose episode is recommended at the end.