Frequently Asked Questions

The relationship between dietary fat and heart health is far more nuanced than the old "all fat is bad" mantra suggests. Modern research shows that the type of fat matters significantly more than the total amount. Saturated fats, trans fats, and refined carbohydrates have been linked to increased cardiovascular risk, while unsaturated fats from sources like olive oil, avocados, and fatty fish are associated with better heart health. In fact, Mediterranean diet studies—which include substantial amounts of olive oil—demonstrate excellent cardiovascular outcomes. The key is choosing whole food sources of fat and limiting processed foods high in trans fats and added sugars.

Carbohydrates themselves do not inherently cause weight gain. Weight gain occurs when you consume more calories than you expend, regardless of whether those calories come from carbohydrates, protein, or fat. However, refined carbohydrates like white bread, sugary drinks, and processed snacks tend to be less satisfying and more calorie-dense than whole food sources of carbohydrates. Whole grains, legumes, vegetables, and fruits contain fibre, vitamins, and minerals that support satiety and overall health. Research shows that people following high-carbohydrate diets with whole food sources often maintain healthy weights. The quality and quantity of carbohydrates matter far more than their presence in your diet.

There is an important distinction between naturally occurring sugars and added sugars. Fruits contain sugar alongside fibre, vitamins, and phytonutrients—and scientific evidence consistently shows that fruit consumption is protective for health. Added sugars in processed foods and drinks, however, provide calories without nutritional benefit and are linked to various health concerns. Public health organisations recommend limiting added sugar intake to less than 10% of daily calories. You don't need to eliminate all sugar, but being mindful of added sugar sources—such as sugary beverages, confectionery, and processed foods—is a practical strategy. Natural sources like whole fruits, honey in moderate amounts, and products with minimal added sugar can fit into a balanced diet.

Sodium is an essential mineral that your body needs for nerve function, muscle contraction, and fluid balance. The issue is not salt itself but excessive intake of processed sodium. Most people in developed countries consume far more salt than recommended—often from processed foods, restaurant meals, and packaged snacks rather than from the salt shaker at home. Current recommendations suggest limiting sodium intake to around 2,300 mg per day. However, for most healthy adults, moderate salt intake is not harmful and can be part of a balanced diet. The focus should be on reducing processed foods and sodium-laden products, rather than eliminating salt altogether or obsessing over minimal amounts used in cooking at home.

Eggs have been unfairly demonised due to their cholesterol content, but decades of research now shows they are a nutritious food. Dietary cholesterol has a minimal effect on blood cholesterol levels for most people—genetics and the type of dietary fats consumed play much larger roles. Eggs are an excellent source of high-quality protein, choline (important for brain health), lutein and zeaxanthin (beneficial for eye health), and contain 13 essential vitamins and minerals. Multiple large studies have found no increased cardiovascular risk from consuming eggs regularly in healthy individuals. For most people, eating one whole egg daily is perfectly safe and nutritious. Those with specific health conditions should consult with health professionals, but for the general population, eggs are a healthy food choice.

The claim that breakfast is essential for everyone is not universally supported by science. While some people feel better and more focused after eating breakfast, others function well without it. Research shows mixed results: some studies suggest breakfast eaters have better weight management and cognitive performance, while others find no significant difference or find that the quality of breakfast matters more than eating breakfast itself. Individual needs vary based on activity level, metabolism, schedule, and personal preference. What matters most is overall daily nutrition and consistency. Whether you eat breakfast or choose intermittent fasting, ensure you're consuming adequate nutrients throughout the day. The best approach is choosing what works for your body and lifestyle rather than following a universal rule.

While organic farming practices have environmental benefits, large systematic reviews show minimal nutritional differences between organic and conventionally grown foods. The micronutrient content depends more on plant variety, soil quality, and harvest timing than farming method. Both organic and conventional produce provide essential vitamins, minerals, and phytonutrients. Pesticide residues on conventional produce are typically far below safety limits set by regulatory bodies. The most important factor is eating plenty of fruits and vegetables, whether organic or conventional. From a purely nutritional standpoint, a person eating conventional carrots and apples will be healthier than someone eating no produce due to cost concerns. If budget allows and you prefer organic for environmental or taste reasons, that's fine—but don't avoid produce because it's not organic.

The popular "eight glasses a day" recommendation lacks strong scientific basis and one-size-fits-all hydration guidelines are misleading. Water needs vary significantly based on body size, activity level, climate, diet, and individual factors. A useful approach is drinking enough fluid so that you rarely feel thirsty and your urine is light-coloured. Thirst is generally a reliable indicator for most people. You also receive water from foods like fruits and vegetables, and beverages like tea and coffee contribute to hydration (caffeine has minimal diuretic effect at normal consumption levels). Individual requirements can range from 2 to 4 litres daily depending on circumstances. Rather than fixating on a number, listen to your body's signals and increase intake during exercise or hot weather. Plain water is ideal, but other beverages and water-rich foods all contribute to hydration.

The timing of eating matters far less than the total calories consumed and overall lifestyle patterns. A calorie consumed at 8 PM is processed similarly to one consumed at 8 AM. The real issue is that late-night eating often involves less nutritious foods, larger portions, and can interfere with sleep—which then impacts metabolism and hunger hormones. However, some people do better eating smaller amounts later in the day, whilst others feel better with an earlier final meal. What matters for weight management is total daily calorie intake, food quality, activity level, and sleep quality. If you eat a reasonable dinner and feel hungry later, a small nutritious snack will not harm your weight. The key is choosing whole foods and being mindful of portion sizes regardless of time of day.